Best Treadmills for Apple Watch
Only a handful of home treadmills support Apple GymKit, the tap-to-pair link that lets your watch and the treadmill share one workout. Here are the four whose makers confirm it, one machine that works perfectly well without it, and an honest account of when GymKit is worth paying for at all.
Exercise Physiology & Biomechanics Specialist · ACSM-EP, CSCS
Last Updated: October 15, 2026
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On the products below. We have not tested these treadmills with an Apple Watch, or at all. On 15 October 2026 we checked each one against the manufacturer's own material — Horizon's product page, the Bowflex T6 and T9 owner's manuals, and Life Fitness's Run CX specification sheet and store listing — and against at least one independent source: a large US retailer's listings (Abt), and independent reviews of the Horizon 7.0 AT and Bowflex T6. Apple's own support guide explains how GymKit pairing works and what label to look for, but it does not publish a list of compatible treadmills, so a machine is on this page only where the manufacturer states Apple Watch tap-to-connect for that model and an independent source confirms it. A figure appears in a product's specification line only where the sources agree; where they disagreed — on unit weight, dimensions, belt width and incline on two of these machines — we left it out and say so. Prices are those we saw on 15 October 2026 and change often; confirm the price, the specification and Apple Watch support for the exact model and console before you order. We earn a commission if you buy through the Amazon links on this page; it does not change which products we list or what we say about them. What this page is, and is not. We review equipment. Heart rate and calorie figures from a watch or a treadmill are estimates, and nothing here is medical, coaching or nutrition advice; if you have a heart condition or another health concern, talk to a qualified professional about how you should train.
Our Top Picks
- Best Overall:Bowflex T6Jump to review ↓
- Best Value:Horizon 7.0 ATJump to review ↓
- Wider Deck:Bowflex T9Jump to review ↓
- Premium Pick:Life Fitness Run CX (Track Connect 2.0)Jump to review ↓
- No GymKit:Spirit XT385Jump to review ↓
In This Guide
Most treadmill listings that mention the Apple Watch mean something modest: the watch can record your workout while you walk on the machine, which is true of every treadmill ever made. A much smaller group supports Apple GymKit, where you hold the watch to the console, the two pair, and the treadmill's speed, distance and incline end up in the same workout as your heart rate. This page names the home machines where the manufacturer confirms that, explains how it differs from a Bluetooth app connection or a plain Indoor Run, and says who should not pay extra for it.
1. Our Picks at a Glance
Four treadmills with Apple Watch tap-to-connect confirmed by the manufacturer, and one labelled pick that does not have it. The short version: the Bowflex T6 or Horizon 7.0 AT for most people, depending on which is cheaper on the day, the Bowflex T9 if you want a wider deck, and the Life Fitness Run CX if you want a heavier, non-folding machine with a long warranty. If you already own a treadmill, start with our guide toconnecting an Apple Watch to a treadmill — you may not need a new machine at all.
| Pick | Best for | Why |
|---|---|---|
| Bowflex T6 | Most people | GymKit tap-to-pair, 20 x 60 in. deck, 15% incline, about $1,000 on sale |
| Horizon 7.0 AT | Same job, often cheaper with a code | The only current Horizon with GymKit; $934 with a code when we checked |
| Bowflex T9 | Bigger runners | 22-inch-wide deck and a 350 lb rating with the same watch pairing |
| Life Fitness Run CX | A long-term, non-folding machine | Track Connect 2.0 console with Apple Watch pairing, 400 lb rating, 10-year motor cover |
| Spirit XT385 (no GymKit) | Warranty over tap-to-pair | Works fine with an Indoor Run; 10 years on parts and a lifetime deck warranty |
Read the three ways a watch and a treadmill can work togetherbefore you pay for any of them. GymKit is convenient, but the gap between it and a well-calibrated Indoor Run is smaller than the marketing suggests.
2. The 5 Best Treadmills for Apple Watch Users
Four machines with Apple Watch tap-to-connect, in the order most buyers should consider them, and one clearly labelled machine without it. The honest headline is that the GymKit list for home treadmills is short. Two of the four come from the same company — Bowflex and Horizon are both owned by Johnson Health Tech — and the T6 and 7.0 AT are close relatives. If none of these suits your space or budget, you are not locked out of using an Apple Watch on a treadmill; you are choosing a slightly less automatic way to do it.
Each card's specification line carries only the figures the manufacturer and an independent source agreed on. Where they did not, the description says so.
1. Bowflex T6
Best Overall Treadmill for Apple Watch
20 x 60 in. deck · 0.5–12 mph · 0–15% incline · 325 lb capacity · Apple Watch tap-to-connect · Bluetooth FTMS
The T6 is the most affordable GymKit treadmill we could verify, and its Apple Watch support is documented by Bowflex itself. The owner's manual describes a smart watch reader on the console and gives the pairing steps: turn on Detect Gym Equipment, hold the watch on the marked icon for about five seconds, wait for the beep and the connected light, choose a workout on the watch, then press Start. An independent review published in August 2026 confirms GymKit and describes data passing both ways, with heart rate on the console and treadmill metrics on the watch. Underneath, Bowflex and a large US retailer agree on a 20 by 60-inch deck, 0.5 to 12 mph, 0 to 15% incline, a 325 lb maximum user weight and a machine of about 234 lb that folds. The warranty is lifetime on frame and motor, three years on parts and one year of labour. It also broadcasts over Bluetooth FTMS for apps such as Zwift. On 15 October 2026 a retailer listed it at $998 against a $1,299 regular price.
What We Like
- Bowflex's owner's manual gives step-by-step Apple Watch pairing at the console's watch reader, and an independent review confirms GymKit
- A full 60-inch deck, 12 mph and 15% incline, so the watch pairing sits on a proper running treadmill
- Lifetime frame and motor warranty plus three years on parts
- Usually on sale: $998 at a large retailer against a $1,299 regular price when we checked
What We Don't Like
- No touchscreen; you bring a tablet or phone for classes and apps
- The 3.0 HP figure is a test rating that Bowflex says does not reflect operational horsepower
- One year of in-home labour, which is short next to the parts and motor cover
The treadmill to start with if you want GymKit at the lowest price we found on a proper running deck. If the Horizon 7.0 AT is cheaper on the day, the two are close.
2. Horizon 7.0 AT
Best Apple Watch Treadmill With a Discount Code
20 x 60 in. deck · 12 mph top speed · 0–15% incline · 325 lb capacity · Apple GymKit · Bluetooth FTMS
The 7.0 AT is the only current Horizon treadmill with Apple GymKit, and Horizon says so plainly: its comparison table marks GymKit as yes for the 7.0 AT and no for the 7.4 AT and 7.8 AT, and the product page invites you to tap to connect an Apple Watch or Samsung Galaxy Watch and says the connection syncs calories, speed, distance, pace and time. An independent reviewer who tested the current version found pairing easy, with the watch offering an indoor run or walk once held over the console icon, but reported occasional random disconnections that were simple to fix. Horizon and that reviewer agree on a 20 by 60-inch deck, a 12 mph top speed, 0 to 15% incline, a 325 lb maximum user weight and a lifetime frame and motor, three-year parts and one-year labour warranty. On 15 October 2026 Horizon listed it at $1,099 against a $2,100 reference price, or $934 with a promotional code. Bowflex and Horizon share a parent company, and this and the T6 are close relatives; buy whichever is cheaper.
What We Like
- Horizon's product page lists Apple GymKit for this model and says to tap to connect an Apple Watch or Samsung Galaxy Watch
- Was $934 with a promotional code on Horizon’s site when we checked, the lowest GymKit price we saw
- QuickDial speed and incline controls and Bluetooth FTMS for apps
- Lifetime frame and motor warranty, three years on parts
What We Don't Like
- Horizon's $2,100 reference price is not what it sells at; judge it against the sale and code prices
- Horizon does not publish a motor rating
- An independent reviewer reports occasional watch disconnections mid-workout, easily reconnected
The same job as the Bowflex T6 from a sister brand, and the cheaper of the two when Horizon has a code running.
3. Bowflex T9
Best Apple Watch Treadmill for Bigger Runners
22 x 60 in. deck · 0.5–12 mph · 0–15% incline · 350 lb capacity · Apple Watch tap-to-connect · Bluetooth FTMS
The T9 is the T6's bigger sibling, with the same Apple Watch arrangement. Bowflex's owner's manual describes the console's smart watch reader and the same pairing steps as the T6, including a separate routine for running an Apple Fitness+ treadmill workout with the watch paired, and the August 2024 announcement that launched the T9 and the current Horizon 7.0 AT said both used Apple GymKit technology. A large US retailer confirms Apple Watch and Galaxy Watch connection. Bowflex and that retailer agree on a 22 by 60-inch deck, 0.5 to 12 mph, 0 to 15% incline, a 350 lb maximum user weight, a 282 lb machine and a fold that leaves it 48.6 inches long and 67.6 inches tall. The warranty is lifetime on frame and motor, three years on parts and one year of labour. A large US retailer listed it at $1,499 against a $1,799 regular price on 15 October 2026. Pay the difference over the T6 for the width and capacity, not for the watch.
What We Like
- Bowflex's T9 manual documents Apple Watch pairing at the console, and the 2024 launch announcement named Apple GymKit
- A 22-inch-wide deck gives more lateral room than the T6 and 7.0 AT
- 350 lb maximum user weight against 325 lb on the T6
- Lifetime frame and motor warranty, three years on parts
What We Don't Like
- Roughly $400–$500 more than the T6 for width and capacity rather than better watch features
- About 282 lb and 67.6 inches tall when folded, so it does not tuck away
- The 3.5 HP figure is a Bowflex test rating, not a continuous-duty figure
For larger runners, or anyone who wants a wider deck, who still wants tap-to-pair. Otherwise the T6 does the same Apple Watch job for less.
4. Life Fitness Run CX (Track Connect 2.0)
Best Premium Treadmill for Apple Watch
22 x 60 in. belt · 3.0 HP continuous · 0.5–12 mph · 0–15% incline · 400 lb capacity · non-folding
The Run CX is the premium choice here, and its Apple Watch support depends on the console. Life Fitness's specification sheet for the Track Connect 2.0 version says its enhanced Bluetooth enables pairing with an Apple Watch or Samsung Galaxy Watch, lists NFC and FTMS, and warns that those capabilities are not compatible with previous models; Life Fitness's store lists Apple GymKit, and a large US retailer confirms Apple Watch pairing on the Track Connect 2.0 console. The machine itself is the reason to pay this much. Life Fitness and independent sources agree on a 22 by 60-inch belt, a 3.0 HP continuous-duty motor, 0.5 to 12 mph, 0 to 15% incline and a 400 lb maximum user weight, with a lifetime frame and shock absorber warranty, 10 years on the motor, 7 years on parts and 1 year of labour. Sources disagree slightly on its weight and dimensions and on the number of built-in workouts, so we leave those out. It does not fold. A retailer listed it at $4,899 on 15 October 2026.
What We Like
- Life Fitness's sheet says the Track Connect 2.0 console pairs with an Apple Watch over enhanced Bluetooth and NFC; its store lists Apple GymKit
- A 400 lb maximum user weight and a 3.0 HP continuous-duty motor rating
- Lifetime frame and shock absorber warranty, 10 years on the motor, 7 on parts
- Three customisable speed presets and three incline presets on the lower control pad
What We Don't Like
- Around five times the price of the Bowflex T6 for the same watch pairing
- Does not fold, and it is a heavy, permanent fixture
- Apple Watch pairing belongs to the Track Connect 2.0 console only; older consoles lack it
For someone buying a long-term, gym-built home treadmill who also wants tap-to-pair. Nobody should buy it for the watch feature alone.
5. Spirit XT385
Works Fine Without GymKit
No GymKit · 60 in. deck length · 3.5 HP · 0.5–12 mph · 375 lb capacity · Bluetooth · folding
This is the labelled exception on the page: a treadmill without GymKit, included because tap-to-pair is a convenience and some buyers will rightly value a longer warranty more. With an Apple Watch, you start an Indoor Run or Indoor Walk on the watch and correct the distance afterwards if it matters; Spirit's sales sheet also lists Apple Health among the services its Spirit+ app connects to, which is an app link, not GymKit. Spirit's own page and a large US retailer agree on a 60-inch deck length, a 3.5 HP motor, 0.5 to 12 mph, a 375 lb maximum user weight, a machine of about 287 lb that folds to 43 inches long, and a warranty of lifetime on frame, motor and deck, 10 years on parts and 1 year of labour. They disagree on belt width — Spirit says 22 inches, the retailer lists a 20-inch belt on a 22-inch deck — and Spirit gives incline in levels while the retailer gives a percentage that does not obviously match, so we leave both out. Spirit listed it at $2,699.99 and the retailer at $2,399.99 on 15 October 2026.
What We Like
- Lifetime frame, motor and deck warranty and 10 years on parts — far longer parts cover than the GymKit machines
- A 375 lb maximum user weight on a 60-inch deck
- Spirit lists Bluetooth connections to Zwift and Kinomap, and to Apple Health through its own Spirit+ app
- Folds, with lift assist
What We Don't Like
- No GymKit: you record an Indoor Run on the watch, or log through an app
- Spirit and a retailer disagree on belt width and on how the incline range is expressed, so check both before ordering
- Costs more than the Bowflex T6 and Horizon 7.0 AT
For an Apple Watch user who cares more about a long parts warranty than tap-to-pair, and is happy recording an Indoor Run.
3. How We Chose These Treadmills
We have not tested these treadmills, and nothing on this page should be read as if we had. Our reviews of theBowflex T6 and the Horizon, Bowflex T9 and Life Fitness machines are specification reviews, not hands-on tests. The picks were made from manufacturer pages, owner's manuals and specification sheets, retailer listings, independent reviews and Apple's own support guide, all checked on 15 October 2026.
The eligibility rule. Apple's guide to using gym equipment with Apple Watch explains that compatible machines carry a "Connects to Apple Watch" or "Connect to Apple Watch" label, and it describes the pairing steps, but it does not name brands or models. So we could not check a treadmill against an Apple list. Instead, a machine qualified only where its manufacturer states Apple Watch tap-to-connect for that model and an independent source confirms it. For the Bowflex T6 and T9 the manufacturer source is the owner's manual, which walks through the pairing step by step; for the Horizon 7.0 AT it is Horizon's product page, which lists Apple GymKit for this model and not for its siblings; for the Run CX it is Life Fitness's specification sheet and store listing for the Track Connect 2.0 console.
What fell out. Horizon's own comparison table lists the 7.4 AT and 7.8 AT as not connecting to Apple Watch or Samsung Galaxy Watch, so they are not here despite being good treadmills. Life Fitness consoles older than Track Connect 2.0 are excluded; Life Fitness's sheet says the enhanced Bluetooth features are not compatible with previous models, and a retailer notes the original Track Connect console lacks phone pairing. Commercial gym treadmills from brands that have supported GymKit in clubs were left out on price and because we could not confirm a current home listing with GymKit stated. Any listing that said only "works with Apple Health" or "syncs to Apple Watch" through an app was treated as not GymKit.
Safety check. We searched the US Consumer Product Safety Commission's recall database by brand and by product type. The recalls we found for these makers were for other models — an older Horizon T101 version in 2022, and Matrix treadmills from the same parent company — and none covered a machine on this page. Specifications and prices are as listed on 15 October 2026; treadmill consoles change between production runs, so confirm the console version and Apple Watch support for the exact unit you are buying.
4. GymKit, Bluetooth FTMS or a Plain Indoor Run: Three Different Things
Listings blur these together. They are three separate ways for a watch, a phone and a treadmill to relate, and only the first is what people usually mean by "treadmill compatible with Apple Watch".
1. Apple GymKit: the watch and the treadmill share one workout
GymKit is Apple's system for pairing an Apple Watch directly with compatible cardio equipment. Apple's guide says to turn on Detect Gym Equipment in the watch's Workout settings, hold the watch within a few centimetres of the machine's contactless reader with the display facing it, wait for a gentle tap and a beep, then start the workout on the treadmill. Stopping the treadmill ends the workout. Bowflex's manuals describe the same sequence: hold the watch on the icon on the console for about five seconds, choose a workout type on the watch, wait for it to read "Start Treadmill", then press Start.
The point of all this is where the numbers come from. With GymKit, distance and speed come from the treadmill rather than being estimated from your wrist, and your heart rate goes the other way, onto the console. Horizon says its connection syncs calories, speed, distance, pace and time; the 2024 launch announcement for the 7.0 AT and Bowflex T9 listed heart rate, active and total calories, speed, distance, pace and incline. The finished workout lands in the Fitness app like any other.
2. Bluetooth FTMS: the treadmill talks to an app, not to the watch
FTMS — the Bluetooth Fitness Machine Service — is an open standard that lets a treadmill broadcast its speed, incline and distance to an app on a phone or tablet: Zwift, Kinomap, the Peloton app and similar. All four GymKit machines here also have FTMS, and so do many treadmills without GymKit. FTMS is about apps on your screen. It does not, on its own, make a treadmill pair with an Apple Watch, and a listing that says "Bluetooth" or "FTMS" is not telling you anything about GymKit. Some apps write their workouts to Apple Health, which can make a non-GymKit treadmill's data turn up next to your watch data — useful, but a different route with its own quirks. OurZwift treadmill guidecovers the FTMS side in detail.
3. An Indoor Run or Indoor Walk with no pairing at all
This works on every treadmill. Start an Indoor Run or Indoor Walk in the Workout app and step on. Heart rate comes from the watch's sensor exactly as it would outdoors; distance is an estimate from the watch's motion sensors, because there is no GPS indoors. The estimate is the weak point — holding the handrails, carrying something or an unusual arm swing all affect it — and our guide toconnecting an Apple Watch to a treadmillexplains how to correct the distance at the end of the session so your history stays honest.
The practical difference is mainly distance and pace accuracy, and a bit of convenience. GymKit takes the treadmill's figures; an Indoor Run guesses. But "the treadmill's figures" are only as good as the treadmill's speed calibration, which is the subject of the next section but one.
5. Is GymKit Worth Choosing a Treadmill For?
Sometimes. The answer depends on how you use your watch data and what else you want from the machine.
It is worth weighting heavily if you close your Activity rings religiously, track your running in the Fitness app, and want treadmill distance and pace recorded without fiddling. It also suits households where several people use the treadmill and each has their own watch: tap on, and each person's workout goes to their own watch. And if you use Apple Fitness+, Bowflex's manuals include a set of steps for running a Fitness+ treadmill workout with the watch paired; Fitness+ is a separate subscription, so check the current price.
It is a pleasant extra rather than a reason to buy if you mainly look at heart rate, or you already log runs through another app. The watch records heart rate identically with or without GymKit. If your distance only needs to be roughly right, an Indoor Run and a quick correction at the end does the job on any treadmill.
It should not override the basics. A machine that pairs beautifully but has a deck too short for your stride, a weight rating too close to your weight, or a console you dislike is the wrong machine. The four GymKit treadmills here all happen to be sound running treadmills with 60-inch decks and 15% incline, which is why the list is short but still useful. If you find a cheaper or smaller machine advertising Apple Watch support, check whether it means GymKit or simply an app, and check the basics first.
One more realistic expectation: reviewers and owners report that GymKit pairing is usually quick but not flawless. One independent reviewer of the 7.0 AT found pairing easy but reported the watch occasionally disconnecting mid-workout and reconnecting without trouble. Treat the link as convenient, not infallible, and check the workout saved before you step off.
6. Accuracy: GymKit Records the Treadmill’s Numbers, Right or Wrong
The quiet catch with GymKit is that it hands your watch whatever the treadmill believes. If the console reads 6.0 mph and the belt is really doing 5.7, your Fitness app will record the faster pace with complete confidence, every session, for as long as you own the machine. An Indoor Run has the opposite problem — it is an estimate from your wrist — but at least it does not inherit a systematic treadmill error.
New machines are usually close, and the error tends to grow as belts stretch and decks wear. So in the first week, while the returns window is open, check the belt speed with a marked belt and a stopwatch. Ourtreadmill calibration guidewalks through it in about ten minutes, andwhether your treadmill speed is accurateexplains why a treadmill, a watch and a foot pod rarely agree out of the box.
If you run on a treadmill without GymKit and want better pace than the wrist estimate, a foot pod paired to the watch is the usual answer; ourtreadmill foot pod guidecovers how they work and how to calibrate one against a checked belt.
Heart rate deserves its own note. GymKit sends the watch's heart rate to the console, so the reading on the screen is the watch's wrist reading, with the strengths and limits of any optical sensor at hard efforts. If you train by heart rate zones and find the wrist unreliable at speed, a chest strap is the standard fix; our comparison ofchest strap and wrist heart ratecovers the trade-off.
7. How to Check a Listing for Real Apple Watch Support
Treadmill listings use "Apple Watch compatible" loosely. Five checks separate GymKit from everything else:
- Look for the words "GymKit", "Connects to Apple Watch" or "tap to connect".Apple says compatible equipment carries a "Connects to Apple Watch" or "Connect to Apple Watch" label. A listing that only says Bluetooth, FTMS or "syncs with Apple Health" is describing something else.
- Check the exact model, not the range. Horizon's own table shows the 7.0 AT with GymKit and the 7.4 AT and 7.8 AT without it. Brand-level claims are not enough.
- Check the console version. On machines sold with a choice of consoles, such as the Life Fitness Run CX, Apple Watch pairing belongs to a specific console — in that case Track Connect 2.0.
- Find it in the manual. A manual that tells you to turn on Detect Gym Equipment and hold the watch to a marked spot on the console is the clearest evidence there is. Most manufacturers publish manuals online, and retailers often link them.
- Check the production year. GymKit has arrived on some models partway through their life. Older stock, refurbished units and second-hand machines may predate it, so ask the seller to confirm for the specific unit.
Samsung Galaxy Watch users will notice that every GymKit machine here also lists Galaxy Watch tap-to-connect, which is handy in mixed households. That is a separate system, and this page did not check how well it works.
8. Setting Up and Using GymKit at Home
Once the treadmill is assembled, set-up takes a minute, and a few habits avoid most of the irritations owners report.
- Turn on Detect Gym Equipment in the watch's Settings, under Workout. Apple's guide notes you can still pair with it off by opening the Workout app first and holding the watch to the reader.
- Pair before you press Start on the treadmill. The manuals have you tap first and start second; the watch then waits for the treadmill to begin.
- Hold the watch face towards the reader and keep it there for the few seconds the manual asks for. A quick swipe past the icon is the most common reason pairing fails.
- End the workout on the treadmill, not the watch, so both sides finish together and the treadmill's final distance is recorded.
- Check that the session saved in the Fitness app before you walk away, at least for the first few weeks.
If you also want a third-party app on a tablet — Zwift, Kinomap or the Peloton app over FTMS — check how the treadmill handles two connections at once. One independent reviewer of the 7.0 AT reported that a chest strap and other heart rate monitors could not be used with third-party apps at the same time, so expect some trial and error if you want everything running together. For heart rate problems specifically, our guide to atreadmill heart rate that is not workingcovers grips, straps and interference.
9. Choosing Between the Four GymKit Machines
Because the watch pairing works the same way on all four, the choice comes down to the treadmill underneath, your space and the price on the day.
Bowflex T6 or Horizon 7.0 AT. These two are the default. Both have a 20 by 60-inch deck, a 12 mph top speed, 15% incline, a 325 lb rating and a lifetime frame and motor warranty with three years on parts, and both come from the same parent company. Buy on price, and if the prices match, on console preference: Horizon's QuickDial controls and Bowflex's dial controls do the same job in slightly different ways. OurHorizon treadmill guidesets the 7.0 AT against the rest of Horizon's range.
Bowflex T9. Choose it for the body using it, not for the watch. Two extra inches of deck width give more margin when your attention is on a screen or your stride wanders at the end of a hard session, and the 350 lb rating leaves more headroom for heavier users. It costs several hundred dollars more and is bigger when folded, so measure first.
Life Fitness Run CX. This is a different class of purchase: a heavy, non-folding machine from a gym-equipment maker, with a continuous-duty motor rating and a 10-year motor warranty. It earns its price over many years of frequent use. If you would not consider a treadmill around $5,000 without GymKit, do not consider this one because of it.
Space and power. All four are full-size running treadmills. Check the assembled footprint and the clearance behind the deck in each manual, and plan for a suitable outlet: Bowflex's manuals, for instance, ask for a dedicated circuit. Our guide totreadmill dimensions and space requirementscovers the measuring.
10. Who Should Buy Something Else
A GymKit treadmill is a good choice for an Apple Watch user who is buying a full-size treadmill anyway. It is the wrong purchase in several common situations.
If you already own a treadmill that works, keep it. Record Indoor Runs, correct the distance when it matters, and add a foot pod if you want better pace. Replacing a sound treadmill for tap-to-pair is an expensive way to save a few seconds per session.
If you want a big touchscreen and classes, none of the four GymKit machines has one; they are built around simple consoles and your own tablet. Machines built around iFIT, Peloton and similar platforms are covered in ourbest smart treadmillsroundup. Those platforms generally do their own thing with watches, so check each one's current Apple Watch features before assuming.
If you mostly walk at a desk, we did not find a walking pad that lists GymKit, and you do not need it: an Indoor Walk records steps and heart rate well enough for desk walking. Our fitness trackers for walking padsguide covers that use.
If the watch is the thing you are really shopping for, start with thebest running watches for treadmill training, which looks at indoor distance, foot pod support and heart rate from the wrist's side of the problem.
11. Frequently Asked Questions
Which treadmills work with Apple GymKit?
Few home treadmills do. Among current models, the Bowflex T6 and T9, the Horizon 7.0 AT and the Life Fitness Run CX with the Track Connect 2.0 console are confirmed by their makers. Apple does not publish a list of compatible machines, so look for "Connects to Apple Watch" or GymKit on the exact model and console, and check the manual.
Can I use my Apple Watch on any treadmill?
Yes. Start an Indoor Run or Indoor Walk in the Workout app on any treadmill. Heart rate is measured as usual, and distance is estimated from the watch's motion sensors because there is no GPS indoors. The estimate can be off, especially if you hold the handrails, so correct the distance at the end when it matters.
What is the difference between GymKit and Bluetooth FTMS?
GymKit pairs the watch directly with the treadmill so both share one workout: treadmill distance and speed on the watch, watch heart rate on the console. FTMS is an open Bluetooth standard that sends treadmill data to apps such as Zwift or Kinomap on a phone or tablet. A treadmill can have FTMS without GymKit, and a Bluetooth logo alone tells you neither.
Is GymKit more accurate than an Indoor Run?
For distance and pace, usually, because it takes the treadmill's figures instead of estimating from your wrist. But it copies the treadmill's errors too: if the belt speed reads high, your watch records the same mistake every time. Check the belt speed with a mark and a stopwatch in the first week, and heart rate is identical either way.
Does the Horizon 7.4 AT or 7.8 AT work with Apple Watch?
Not by tap-to-pair. Horizon's own comparison table lists the 7.0 AT as its only current model with Apple GymKit and marks the 7.4 AT and 7.8 AT as not connecting to Apple Watch or Samsung Galaxy Watch. You can still record an Indoor Run on either, and both broadcast over Bluetooth to apps.
Do I need Apple Fitness+ to use GymKit on a treadmill?
No. GymKit pairing and recording a workout need no subscription. Bowflex's manuals include separate steps for running an Apple Fitness+ treadmill workout with the watch paired, and Fitness+ is a paid Apple service, so check the current price if you want it. None of the treadmills on this page needs a subscription to work.
Common Mistakes Buying a Treadmill for Apple Watch
Two of these mean paying for a feature you do not get, and two mean trusting numbers that are not as good as they look.
Reading “Bluetooth” or “Apple Health” as GymKit
Many treadmills have Bluetooth for their own app or for FTMS, and some sync to Apple Health through an app. None of that is GymKit. Look for “Connects to Apple Watch”, GymKit or tap-to-connect for the exact model, and confirm it in the owner’s manual, before paying extra for watch pairing.
Assuming a whole range has it
Horizon’s own table shows GymKit on the 7.0 AT and not on the 7.4 AT or 7.8 AT, and Life Fitness’s pairing belongs to the Track Connect 2.0 console only. Check the model, the console and, for older or refurbished stock, the production year rather than trusting a brand-level claim.
Trusting paired distance without checking the belt
GymKit hands your watch the treadmill’s distance and pace. If the console reads fast, your history reads fast too, permanently. Mark the belt, time ten revolutions at a set speed and compare, in the first week while you can still return the machine, and recheck every few months.
Replacing a good treadmill for tap-to-pair
An Indoor Run works on any treadmill, and correcting the distance takes seconds. If the treadmill you own runs well, keep it and, if pace matters, add a foot pod paired to the watch. A new GymKit treadmill makes sense when you are replacing the treadmill anyway.
Related Buying Guides
How to Connect Apple Watch to a Treadmill
GymKit pairing step by step, and getting an accurate Indoor Run on any treadmill.
RoundupBest Running Watches for Treadmill
Which watches handle indoor distance, foot pods and heart rate best.
RoundupBest Smart Treadmills
Touchscreens, classes and connected platforms, compared.
The Bottom Line
For most Apple Watch users buying a treadmill, the Bowflex T6or the Horizon 7.0 AT is the right buy — whichever is cheaper on the day — with GymKit confirmed by the maker, a 60-inch deck and 15% incline at around $1,000. The Bowflex T9 adds width and capacity, and the Life Fitness Run CX is the long-haul option.
GymKit is a convenience, not a requirement: every treadmill works with an Indoor Run. Whichever route you take, check the belt speed with ourcalibration guideso the numbers your watch keeps are worth keeping.

Meet the Author
Shaheer Ali Khan, PhD · Exercise Physiology & Biomechanics Specialist · ACSM-EP, CSCS
Shaheer holds a PhD in Kinesiology (Biomechanics) from the University of Michigan and an MS in Exercise Physiology from the University of Florida, and is an ACSM Certified Exercise Physiologist and an NSCA Certified Strength and Conditioning Specialist. His treadmill evaluations look at motor performance, belt stability, shock absorption, incline accuracy, running ergonomics, noise and long-term durability. Every guide says what was checked and when, and says plainly when a product has not been tested hands-on.Editorial standards ·LinkedIn