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Heart rate monitoring less accurate than premium Garmin watches.

The best Garmin watches in 2025, tested over thousands of miles

Track your pace, monitor your recovery,and stay motivated with the best Garmin watches for every type of runner

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Whether you’re training for your first 5k or a 100km ultramarathon, a Garmin watch is one of the best pieces of tech you can use to track your runs, gain feedback on key metrics, and even monitor areas of your health, including stress and sleep.

The Swiss brand has been designing cutting-edge GPS navigation products since 1989, and now boasts some of the best GPS running watches on the market, as well as a host of other wearables including heart rate monitors.

The Runners World Editors best cheap running watches going, including the likes of the Forerunner 55 and Forerunner 165 which allow you to view a whole range of metrics, including pace, elevation, cadence, stride length, heart rate, vertical oscillation and more, for under £250. But if you're looking for something more hardcore, the more premium offerings can give you guidance on your training, telling you when to ease up or work harder, as well as downloadable maps with turn-by-turn navigation if you're planning on hitting the trails.

Good GPS and heart rate accuracy Amazon Prime Day sale, you can score a substantial discount on some of our favourite Garmin watches. Beyond the run, you also get fitness, stress and body battery energy level tracking.

Still weighing up Garmin as a brand? We've also reviewed the Best for road to trail runners and Coros watches on the market too. Or check out this month's best Garmin deals for the latest discounts on our editors' favourite devices.

The best Garmin watches at a glance

To help you spend your money wisely, we've put together a guide to Garmin's full range of running watches below. You can also shop our winning watches here, at a glance.

Which Garmin watch should I buy?

Garmin offers an overwhelming number of models, which can make it hard to settle on the right watch for your needs. Generally, they can be divided up into the following ranges:

  • Forerunner: Designed specifically for road runners, the Forerunner family ranges from the basic (the 55 and 165) to the advanced (the 570 and 970). Historically, its ethos has been 'running watch first, smartwatch second'.
  • Fenix: Geared towards recreational and elite athletes, as well as multi-sports, the Fenix offers a comprehensive suit of training, recovery and racing tools.
  • Instinct: Built for adventurers, the Instinct family of watches are rugged in appearance, but more wallet-friendly than the Fenix.
  • Vivoactive/Venu: Style and design meets health and wellness. Think of the Vivoactive and Venu families as Garmin’s take on the Apple Watch. Unlike the Forerunners, these are more 'smartwatch first, running watch second'. The Vivoactive 6 rivals the Apple Watch SE, the Venu revivals the Series 10, and the Venu X1 rivals the Ultra 2.

When it comes to finding your perfect Garmin watch, it's worth considering what type of running you'll be doing (e.g. on or off road, or a mixture of both) and how much feedback you're after. If you're someone who sticks mostly to roads, a Forerunner will probably fit the bill, with a few different models on offer depending on how nerdy you like to get about your stats.

Spend a lot of time on the trails? The Instinct is designed for you. Or perhaps you're training for a triathlon, in which case the Fenix can handle multi-sports like a pro.

How to choose a Garmin watch

Battery life

Garmin watches come with a wide range of battery lives, and the more you have to spend, the longer you can go between charges. Ideally, you’ll want your watch to survive a week’s worth of training, but you’ll also want to consider the distances and races you’ll be doing – especially if it’s a longer distance like a marathon or an ultramarathon: the last thing you want is your watch cutting out. We'd recommend paying closer attention to the GPS battery life than the smartwatch battery life, particularly if you'll be recording a lot of your training.

Activities/training features

The majority of Garmin watches will be able to track your distance, pace, calories and heart rate data. Higher-end models like the Forerunner 570 and Fenix 8 have more advanced training features such as training status, training readiness and performance condition, which can provide additional feedback to help you improve as a runner.

Garmin watches can also track more than just your runs. Most of them come pre-loaded with a plethora of sporting activities, including cycling, swimming, yoga, strength training, golf and more. The more running-focused watches, like the Forerunner and Fenix, will offer options such as track running, trail running, ultra running and treadmill running. Again, generally the more you pay, the more activities you'll get.

Smartwatch features

Most Garmin watches come with additional health tracking features including sleep and stress monitoring, but the more 'smartwatch' style ones, like the Venu 3 and Venu X1, go seriously more in-depth and pack Garmin's advanced Elevate Gen 5 heart rate monitor.

That said, even the more basic models can let you see notifications for texts and calls, however you’ll usually have to pay for a more premium model if you want things like Garmin pay, weather alerts and phone-free music storage.

Style

Garmin’s line-up spans rugged, adventure-style watches to everyday, smarter-looking watches that wouldn’t look out of place in an office. Consider how often you’ll be wearing your watch (all day or just for workouts?) and where – the likes of the Venu might look sleek and stylish, but it’ll be prone to wear and tear if you’re more of a hardcore adventurer.

Beyond the run, you also get fitness, stress and body battery energy level tracking

garmin watches how we test

At Runner’s World, we don’t just read the spec sheet – we live with these watches. Every Garmin model in this guide has been worn, tested and re-tested by our expert team, often for weeks at a time. We run with them, race in them, sleep in them, and even rely on them to get us through 100km ultramarathons. We’ve compared GPS accuracy on twisty trails and in crowded cities, tested heart rate data alongside chest straps, and pitted models against one another to see which ones genuinely offer the best real-world performance.

This guide draws on the in-depth experience of e-commerce editor Ali Ball, a marathoner, ultrarunner and longtime gear reviewer who has covered fitness tech for some of the UK’s biggest consumer tech titles. It also includes insights from freelance writer and contributor Kieran Alger, who has tested hundreds of running watches over the past decade, and brings the hard-earned perspective of someone who’s completed more than 60 marathons and a host of ultras.

When we say we know these watches inside out, we mean it – because we’ve worn them in just about every condition imaginable.

Why trust us?

Runner’s World UK has been vetting and reviewing running gear and tech since 1983. Our essential recommendations are selected based on data and insights gathered by our editors, who put the latest and greatest running shoes and gear through their paces day in and day out. In 2024, the Runner’s World test team is led by e-commerce editor Ali Ball, a 12-time marathoner who has over seven years experience testing fitness gear and tech.

Our full reviews

best Polar watches

Garmin Forerunner 165

Forerunner 165
Now 25% Off
on the market, as well as a host of other wearables including

Pros

  • Stunning bright display
  • Compact and comfortable
  • Good GPS and heart rate accuracy

Cons

  • Short battery life
  • Lacks some training insights
  • No smart features (contactless payments, offline music)

Read our full Garmin Forerunner 165 review

If you’ve lusted after the bright, crisp display on the Garmin Forerunner 265 but the price tag is over your budget, the Garmin Forerunner 165 is here for you.

The Garmin Forerunner 165 drops into Garmin’s line up in between the entry-level Forerunner 55 and the Forerunner 265 and it’s now the cheapest Garmin Forerunner with a bright smartwatch-style AMOLED touchscreen.

Behind the impressive, snappy, responsive display, the Forerunner 165 serves up a pretty comprehensive array of Garmin’s regular run-tracking tools, with plenty to cater for training and racing. In fact, it offers the majority of core features you’ll find on the Forerunner 265 – including Suggested Workouts, adaptive Garmin Coach training plans tied to a target race and all the usual race time predictions, race pace tools and fitness benchmarking like VO2 Max estimates.

There are a handful of key omissions, though. There’s no accuracy-boosting dual band GPS and triathlon sports mode is missing. You’ll also have to forego some of Garmin’s training insights: training status, training load and training readiness readouts are all left out.

Even with those features taken out, when it comes to run-tracking the Forerunner 165 is more than a serious rival for pricier watches on performance and accuracy.

In tests, the Forerunner 165 held its own in tests against the Forerunner 265, Forerunner 965 and the Enduro 2 – all of which offer the accuracy-boosting dual-frequency GPS. The optical heart rate performance was relatively reliable, too.

You will pay a price for that punchy screen. The battery comes in at 19-hours of GPS runtime – that’s shorter than the Forerunner 55 (20 hrs), Forerunner 265 (20 hrs) and the Forerunner 255 (26 hrs).

We got between 5-8 days general training usage, with around 5-6 hours GPS run time. Without music a 1:25 half-marathon burned 11%, while a 4-hour marathon burned 21%. The juice drains faster if you use the music on the Forerunner 165 Music. But there’s still enough to cover most single-session distances.

Garmin still leads the way with additional smarts like contactless payments, WiFi syncing and offline music. All welcome extras at this cheaper end of the running watch spectrum. And if you want a happily reliable, largely fully featured run tracker, in a compact, comfortable package, this is a good value option.

Key specs

Display size/type 1.2"/30.4mm, AMOLED
Weight 39g
GPS Yes (All-Systems)
Battery life (GPS) Up to 19 hours
Battery life (Smartwatch mode) Up to 11 days
Waterproof rating 5ATM
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The best Garmin watches in 2025, tested over thousands of miles

Garmin Forerunner 55

Garmin Forerunner 55
Now 31% Off
Credit: Ali Ball

Pros

  • Includes Garmin Coach
  • Up to 19 hours

Cons

  • Lower quality screen than more premium models
  • No offline music or notifications
  • Lacking advanced training features (e.g. readiness)

Read our full Garmin Forerunner 55 review

If you’re new to running, there’s no point paying out for an entire suite of training features you’re not going to use. In this case, we’d recommend the Forerunner 55 as a great starting point. While it's a few years old now, it comes with built-in (and accurate) GPS, optical heart rate monitoring, 20 hours’ GPS run time on a single charge and a general usage battery life that’ll get most runners through at least a week’s training.

There’s plenty of tools to cater for a wide range of running needs, with features geared towards the less experienced. This includes five running modes with track running and a virtual running mode for use with platforms like Zwift. There's also Garmin Coach adaptive training plans, daily suggested workouts based on your recovery, handy pace guidance for a selected course, cadence alerts to help with improvements in form and recovery advisor for advice on managing your rest between training efforts.

Beyond the run, you also get fitness, stress and body battery energy level tracking.

Sure, the screen is a little more low-quality than watches further up the Forerunner food chain, and there’s no offline music or notifications. But for beginners, this covers the basics at an affordable price.

Key specs

Screen size 1.04"/26.3mm
GPS Yes
Battery life (smartwatch mode) Up to 2 weeks
Battery life (GPS) Is this the ultimate smart ring for biohackers
Waterproof rating 5ATM
Best Garmin watch for runners overall

Garmin Forerunner 570

Garmin Forerunner 570

Pros

  • Extensive training and recovery features
  • On-board music
  • Colourful AMOLED screen
  • Smart assistant

Cons

  • No maps
  • Aluminium bezel versus the 970's titanium

As the name suggests, the Forerunner has long been a much-loved companion for runners. The new Forerunner 570 marks the start of the 500s era and the end of Garmin’s 200s series, delivering pretty much everything you’d want in a running watch without the premium price tag of Garmin’s more premium brands. There’s a wide range of features, a decent battery life (up to 10 days in smartwatch mode), accurate tracking and customisable workouts.

If you’re someone who can feel dwarfed by some of the chunkier running watches on the market, the Forerunner 570 is available in two sizes: 47mm and a smaller 42mm. Both watches have Garmin’s brightest and sharpest AMOLED touchscreen display yet, which is easily bright enough to work for outdoor runs on sunny days. It’s pretty hardcore when it comes to features, too. It’s got the usual GPS (including multi-band), sleep tracking and fitness modes, but there’s also training status, training readiness and performance condition, which makes this feel like a real athlete’s watch. It’s involved to become a go-to training tool for triathletes as well, with the Garmin Triathlon Coach feature offering personalised training plans and suggested workouts that cover running, swimming and cycling in one swoop. And it’s even equipped with Garmin’s latest Elevate Gen 5 heart rate sensor for more accurate heart rate and health data.

New to the 570 (and Garmin in general) is auto-lap, a feature which records miles or kilometres in line with the mile or kilometre markers of known races – like the London Marathon – in Garmin’s race library. As a result, your watch will neatly tell you that you’ve run 10K when you actually pass the 10K marker, giving you a clearer sense of your projected finish time. Smart assist has also been added so you can control watch functions or respond to text messages.

So what’s missing? Well, it’s lacking maps (you’ll have to go higher up the food chain with the Forerunner 970 for that) and you can’t take an ECG reading either, but that’s about it. All in all, the 570 really is an excellent all-rounder.

Key specs

Sizes 42mm/47mm
Screen size/type 1.2" (42mm), 1.4" (47mm)/AMOLED
Weight 42g
GPS Yes (including All-Systems Multi-Band)
Battery life (smartwatch mode) No offline music or notifications
Battery life (GPS mode) Up to 18 hours, depending on GPS mode
Waterproof rating 5ATM
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on the market too. Or check out this months

Garmin Fenix 8

Garmin Fenix 8
on the market, as well as a host of other wearables including

Pros

  • Stunning bright screen
  • Lacking some running-specific metrics
  • Offline Spotify
  • Improved navigation
  • Built-in torch

Cons

  • Hiked up price tag
  • In-depth health and wellness features

Read our full Garmin Fenix 8 review

The Fenix 8 is arguably the most comprehensive multi-sport watch on the market. If Garmin has a tool for it, it’s on this watch. You get the full suite of Garmin’s run tracking, training, recovery, navigation and health tools, including everything from training effect, training load and performance condition, to HRV, Body Battery, recovery time, VO2 Max and race time predictor estimates. Plus, it has progress-charting readouts like Hill Score (how good you are on the ups) and Endurance Score (how good you are at going long).

There’s military-style multi-band GPS, designed to improve GPS accuracy in areas where regular signals can struggle. Though it’s impressive, our tester found it’s not totally infallible. It locks routes as well as any watch we’ve tested, though it suffered a few wobbles under heavy tree cover. Overall, though, total distances landed well within the margin for error.

The headline updates from the Garmin Fenix 7 range include a stunning smartwatch-style AMOLED display, bigger screens on the smallest watches, plus increased battery life (in most settings).

It’s also packed with all the features you’d expect from a smartwatch – including smart notifications delivered right on the wrist, contactless payment, wrist-based heart rate, sleep and stress tracking. The con? It’ll cost you.

Key specs

Sizes 43mm, 47mm, 51mm
Display size/type 1.4-Up to 18 hours, depending on GPS mode
Weight 92g
GPS Yes (multi-band)
Battery life (smartwatch mode) 29 days
Battery life (GPS) 62-145 hours
Waterproof rating 10ATM/Dive 40m
Best for road to trail runners

Garmin Instinct 3 AMOLED

Garmin Instinct 3 AMOLED
Now 16% Off
Credit: Ali Ball

Pros

  • Updated: 02 July 2025
  • Impressive suit of training and recovery features
  • Great safety features, including incident detection
  • Durable build
  • Breadcrumb navigation

Cons

  • No offline maps
  • No touchscreen

Read our full Garmin Instinct 3 review

If you want a running watch that can handle more extreme excursions, the Garmin Instinct 3 AMOLED is worth considering. It’s waterproof to 100m, built to military standards for thermal and shock resistance, and has a scratch-resistant display and polymer-toughened case. And the best bit? It’s much more affordable than other Garmin models with similar specs.

The Instinct 3 AMOLED boasts an impressive suit of run-specific tracking, training and recovery tools, including VO2 Max estimates, training status, training load, post-run training effect readings and recovery time recommendations. For health and wellness, there’s Body Battery, Sleep Score, Advanced Sleep Reports, Menstrual Cycle Tracking and Stress Tracking. You’re only really missing Hill Score and Endurance Score from the pricier Garmin watches.

It ticks all the boxes for safety too, including incident detection and live location sharing, making it well-suited to off-road ultras, plus urban running.

The latest Instinct comes with a stunning AMOLED display which is easy to read in direct sunlight. There’s no touchscreen, which is surprising considering all of Garmin's other AMOLED devices have one. But it’s not a huge loss.

The lack of offline maps is also surprising on a watch that’s built for outdoor adventures, but the navigation skills are still strong. You get turn-by-turn breadcrumb and back-to-start navigation, along with distance to destination and future elevation for routes you load onto the watch. That’s particularly useful for trail runs and races.

Ultimately, if you spend a lot of time on the trails, you might want to look elsewhere for more thorough mapping. If you can handle breadcrumb navigation, though, there’s a lot to love here.

Key specs

Sizes 45mm, 50mm
Screen size 1.2"/30mm, AMOLED
GPS Yes (multi-band)
Battery life (smartwatch mode) Up to 24 hours
Battery life (GPS) Up to 40 hours
Waterproof rating 10ATM
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Best smartwatch running watch

Garmin Venu X1

Garmin Venu X1

Pros

  • Huge, bright display screen
  • Full colour, offline maps
  • Full suite of advanced training and health insights
  • Built-in flashlight
  • Surprisingly lightweight

Cons

  • Battery life not suitable for ultrarunners

Read our full Garmin Venu X1 review

While Garmin has long led the way on running features, it’s often lagged behind Apple in smartwatch smarts – particularly when it comes to blending those features into a sleeker, more lifestyle-friendly design. The Venu 3 (below) which rivals the mm, 1.4 47mm/AMOLED, comes close. However, on the more adventure-ready side of things, even the feature-packed Fenix 8 – complete with Garmin’s full kitchen sink – isn’t really playing in the same style league. The Venu X1, then, is an exciting addition to Garmin’s line-up.

First up, it's got a stunning 2-inch AMOLED touchscreen display, protected by a scratch-resistant sapphire lens and framed in a titanium case. It’s just 8mm thick and 34g (without a strap), borrowing the rectangular shape and rounded corners of the older Venu 2, but with a much sleeker, premium finish. For context, the Apple Watch Ultra 2 measures 14.4mm thick, weighs 61.4g and boasts a 1.92-inch display, so the Venu X1 feels much lighter on the wrist.

It packs some serious running smarts that the Ultra 2 still hasn’t mastered. That includes full-colour, built-in mapping, with an altimeter, barometer and 3-axis electronic compass providing precise navigation. It’s also pre-loaded with 100+ sports apps, including running, golf, strength training and more. You can access Garmin Coach plans for running, strength and cycling, alongside Garmin’s advanced training insights, including Training Readiness, Training Status, Endurance Score, Hill Score, Running Power and a plethora of running metrics, from cadence to ground contact time. It even packs in Garmin’s Pacepro tool, with GPS-based pace guidance for selected courses or distances, and Climbpro for real-time information on upcoming climbs.

When it comes to health, you get Garmin’s 24/7 suite of health monitoring features. That includes Body Battery, Sleep Coach, Morning Report, HRV status and heart rate monitoring, stress tracking, a blood oxygen sensor, altitude and heat acclimation, and even jet lag advisor — pretty neat.

The only slight limitation is the battery life. While it’s far superior to the Apple Watch Ultra 2 (up to 8 days in smartwatch mode versus 3 days for the Ultra 2), we got around 13 hours run-time using multi-band GPS. While this will satisfy urban runners, hardcore adventurers or ultrarunners will want to venture further up the food chain to the likes of the Fenix, Enduro or Epix Pro for a watch that can go the distance.

Key specs

Size 51mm
Display size/type 2"/AMOLED
GPS Yes (multi-band)
Battery life (smartwatch) Up to 8 days
Battery life (GPS) Up to 16 hours (depending on GPS type)
Water rating 5ATM
Best smartwatch-first Garmin

Garmin Venu 3

Garmin Venu 3
Now 24% Off

Pros

  • Up to 40 hours
  • mm 1.4″ diameter/AMOLED
  • In-depth health and wellness features

Cons

  • Lacking some running-specific metrics
  • No on-watch maps

Read our full Garmin Venu 3 review

Looking for something that bridges the gap between a running watch and a smartwatch? Enter the Venu 3. We’re not saying the likes of the Fenix and Instinct can’t be worn all day, but the Venu looks a lot more at home whether you’re exercising or not, and it’s smart enough for most occasions.

GPS is quick to triangulate, battery life is decent (just over an hour of running knocked off around 5% battery), and there are pre-loaded workouts available. Alternatively, you can create your own in the Garmin Connect app, much like with the Apple Watch. You can also configure alerts for heart rate, pace, time, distance, cadence and calories.

There are a few features missing that we’ve come to expect from some of the more 'running focused' Garmin watches – the Venu 3 doesn’t have a training readiness score or training status score, and there aren’t really any training-specific features on the Venu watches – you don’t get daily suggested workouts which adapt after every run or ride, recovery recommendations based on your latest training, or race predictions.

But just because the Venu 3 lacks some running-specific measurements, doesn’t mean it’s not a great watch for runners. In fact, if you’re the type of runner who also likes going to a weekly yoga class, dipping your toe into Reformer Pilates and conquering a strength workout, then you’ll probably love how versatile, smart – and pretty – the Venu 3 is.

From the wellness side of things, it’s got all the usual features you’d expect: heart rate tracking, sleep tracking, stress tracking and more. In fact, sleep has had a real overhaul. Not only does the Venu 3 give you a sleep score, but it also offers personalised tips on how much sleep you need and how you can improve. Another major improvement from the Venu 2 is the body battery feature which provides more information so you can understand exactly how the body battery is affected by what you do during the day.

Shop the Venu 3S

Keys specs

Screen size/type 35.4 mm (1.4″) diameter/AMOLED
GPS Yes
Battery life (smartwatch mode) No offline music or notifications
Battery life (GPS) 26 hours
Waterproof rating 5ATM
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Best value smartwatch

Garmin Vivoactive 6

Garmin Vivoactive 6
Credit: Ali Ball

Pros

  • Decent battery life
  • Right now, as part of the
  • Plenty of health tracking features

Cons

  • No barometric altimeter for accurate elevation
  • Aluminium bezel versus the 970s titanium
  • No multi-band GPS

Read our full Garmin Vivoactive 6 review

A jack of all trades and master of none, the Vivoactive 6 isn't going to turn the heads of hardcore data nerds or high mileage athletes, but if you’re after a do-it-all watch that blends Garmin’s fitness smarts with everyday wearability, it’s a very solid shout.

It's not quite got the chops of the Forerunner 265 when it comes to serious run tracking, but it’s far more smartwatch-y than either of those, and not as costly as the sleek Venu 3.

For the £279.99 price tag, you're also getting a good-looking AMOLED screen, solid fitness tracking, breadcrumb navigation and a huge suite of wellness tools – all wrapped up in a lightweight, wrist-friendly package. When it comes to those wellness tools, you get wrist-based heart rate, Body Battery, all-day stress, relaxation and movement reminders, meditation, breathwork, sleep coach and even nap detection.

Plenty of health tracking features cadence, stride length, ground contact time and running power analytics. However, there's no multi-band GPS or a barometric altimeter, which determines changes in elevation, limiting the watch’s use for hiking and trail running pursuits. Battery life is also a little shorter than billed, with our tests finding you can get around a week on a full charge, with 14 hours GPS.

Still, this is decent compared with the likes of the Apple Watch SE. And for everyday runners, gym goers and those who want a Garmin that can do a bit of everything – and look good doing it – the Vivoactive 6 is a strong, versatile pick that offers great bang for your buck.

Screen size/type 30.4mm/1.2", AMOLED
GPS Yes (All-Systems)
Battery life (smartwatch mode) Up to 11 days
Battery life (GPS) 17-21 hours
Waterproof rating 5ATM
Headshot of Kieran Alger
Tested byKieran Alger

A 53-time marathon finisher, 14-time ultramarathoner (including a top 100 position in the Marathon des Sables) and cofounder of The Run Testers, a YouTube running gear reviews channel, Kieran has been testing the latest running gear for more than a decade. A sub-3 marathon runner, you'll find him covering everything from virtual reality and smart scales to the latest health trackers. Kieran is also passionate about using the latest technology to hack his health in search of marginal gains and you'll always find him with a running watch on either wrist.

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