Best running watches 2021: Upgrade your workouts

The best running watch can help you track your fitness in a way that fits with your lifestyle and goals. 

Chances are, if you've started searching for a running watch, you've probably gotten overwhelmed with the number of choices available. You're in luck, as Live Science has compiled a list of the best running watches available right now. 

Smartwatches geared toward active people like runners can track every aspect of your workouts and daily activities, with many even having the same capabilities as your smartphone. The most common feature of a running watch is GPS capability, meaning you will never have to worry about getting lost on your route. Other running watch features are:

  • Heart rate monitor
  • Pulse oximeter — how much oxygen is in your blood
  • Sleep tracker
  • Stress level tracker
What the experts say

"The features you will want depend a lot on the runner, but there are a few essentials I'd always look for: week-long battery life and good, reliable GPS are right up there. Newer runners have a habit of running all their runs too hard, which can make it feel harder and be off-putting. So accurate heart rate to power heart rate zone training can be a really important feature for managing your intensity." Kieran Alger, ultramarathon and marathon runner and fitness editor. 

Even so, there are loads of choices out there, so Live Science asked a seasoned athlete what to look for when choosing a solid running watch you'll be happy with: "A good running watch not only lets you know how far, or how fast you've been running, but it gives you a whole range of insights that you can use — along with your awareness of your body — to guide your training and monitor your fitness progress," Kieran Alger, seasoned ultramarathon and marathon runner, told Live Science.

For instance, the Apple Watch 6 comes with an oximeter that acn not only alert you to health problems like sleep apnea but also respiratory viruses like COVID-19. And the watch can track not only walking and running, but also water activities like swimming. 

Such running watches, which are sometimes called fitness trackers, can also help you to lose weight. A recent study by researchers from the University of Minnesota Twin Cities and published in 2021 in the British Journal of Sports Medicine showed that fitness trackers can help reduce body-mass index (BMI), which is fantastic for achieving your fitness goals. This is partly because running watches often come loaded with preset workouts and virtual coaches to maintain your motivation. At Live Science, we have also written on the science behind running to lose weight; if you're wondering where to begin, we've got some great tips on different exercises you can try, such as how to start running. 

Best running watchesGarmin Fenix 6X Pro Solar

Best running watches: Garmin Fenix 6X Pro Solar

(Image credit: Garmin)Garmin Fenix 6X Pro Solar The best ‘do it all’ running watch.SpecificationsSoftware: Garmin OSCompatibility: iOS, AndroidBattery life: 21 days standbyMemory: 32GBSize: Transflective displayTODAY'S BEST DEALSPrimeView at AmazonView at CrutchfieldView at Macy'sSee all prices (5 found)Reasons to buy+ Incredible array of exercise tracking + Constant feature upgrades Reasons to avoid- Solar power isn't worth the cost for most - Bulky and heavy on the wrist 

The Garmin Fenix 6X Pro Solar represents the best that Garmin can put in a fitness watch, with detailed insights on how to improve your workouts across different terrain types and intricate features, such as preloaded ski maps for thousands of slopes around the world.

The crowning jewel of this watch, the solar panel on the watch face, is a new addition to Garmin's line up designed to help those struggling to get through a multi-day ultra-marathon eke out a few moments more battery life. This isn't just a gimmick though - underneath the intriguing new features is a powerful watch with extensive exercise tracking.

We love how many workouts you can track on the Garmin Fenix 6X Pro Solar, from running and kayaking to parachuting and bouldering. It’s got a rugged and large frame – it’s not that pretty – but you know it will survive if you fall down a rocky waterfall.

  • Read the full Garmin Fenix 6X Pro Solar review.
Apple Watch 6

Best running watches: Apple Watch 6

(Image credit: Amazon )Apple Watch 6 The best running watch for real-time notifications.SpecificationsSoftware: WatchOS 8 Compatibility: iPhone onlyBattery life: ~26 hours mixed-useMemory: 32GBSize: 40mm/44mmTODAY'S BEST DEALSPrimeView at AmazonView at ApplePrimeView at AmazonSee all prices (4 found)Reasons to buy+ Rich, detailed notifications +  Smart design Reasons to avoid- Battery life too short - Blood oxygen sensor doesn’t add much 

The Apple Watch 6 is a solid choice for a smartwatch, balancing great fitness features with a ton of nifty notifications. Famous for its smart design, the Apple Watch 6 comes with a large display, good fitness tracking options, and an SPO2 sensor or pulse oximeter. 

The oximeter feature lets you know how much oxygen is in your blood; this can be helpful during sleep tracking or when you’re at high altitudes, as well as alerting you to potential health issues like sleep apnea and other respiratory conditions like Covid-19. This watch can also help you track a good range of activities, including swimming, making it a strong all-rounder when it comes to accompanying you on your workouts. 

If you want an extension of your iPhone on your wrist, the main reason you should buy the Apple Watch 6 is for the notifications. It performs the role of ‘mini iPhone’ really well and offers rich and engaging interactions that mean you don’t have to keep looking at your phone. Our only complaint, as with the other Apple Watches in this lineup, is that the battery life is too short. It's also worth noting that the Apple Watch 6 is being discontinued, meaning you can find amazing deals on this model frequently, and save yourself a few dollars.

  • Read the full Apple Watch 6 review.
Garmin Forerunner 945 

Best running watches: Image of Garmin Forerunner 945

(Image credit: Garmin)Garmin Forerunner 945The best running watch for those serious about statistics. SpecificationsSoftware: Garmin OSCompatibility: iOS, AndroidBattery life: 14 days on standby, 30+ hours GPSMemory: 1000 songsDisplay size: 1.2-inch transflectiveTODAY'S BEST DEALSView at Competitive CyclistView at WalmartPrimeView at AmazonSee all prices (43 found)91 Amazon customer reviews☆☆☆☆☆Reasons to buy+ An extremely competent fitness tracker + Intuitive design  Reasons to avoid- A slightly bulky watch  - Buttons can be difficult to press 

You can do it all while wearing the Garmin Forerunner 945, from scaling a mountain to working out in the gym and if you enjoy poring over your progress when it comes to running watches, then you can spend plenty of time afterward doing that too. This ultra-capable watch is a more affordable, yet still feature-packed alternative to the Fenix 6X range, and can give you seriously useful updates on your fitness progress so that you keep pushing yourself to do better.

If you love getting real-time updates on your fitness metrics, then the Garmin Forerunner 945 also qualifies as an excellent choice for you thanks to its large screen, which can cram in a ton of information to keep you informed as you go. The tracking doesn’t stop when the workout does either, with this watch boasting in-depth sleep statistics too, with suggestions on how to do a little better next time. 

This watch not only accompanies you on your workout but can coach you through it, with guided activities to push you even when you don't feel motivated. It might not have the full breadth of notifications like Apple watches, but if you’re more fixated on your workout stats, then this is most certainly the watch for you. 

  • Our full review of the Garmin Forerunner 945 is currently underway.
Amazfit GTR 3 

Best running watches: Image of Amazfit watch

(Image credit: Amazfit)Amazfit GTR 3 The best affordable yet stylish running watch.SpecificationsSoftware: RTOS via the Zepp appCompatibility: iOS, AndroidBattery life: 21 days standbyMemory: Saved to Zepp appSize: 1.39 (round)TODAY'S BEST DEALSPrimeView at AmazonView at Best BuyView at Best BuySee all prices (6 found)Reasons to buy+Incredible battery life+Extremely customizable  Reasons to avoid- Limited notification technology - Not the best for third party apps 

This affordable smartwatch blurs the line between fitness tracking and style, with a design that you won’t mind gracing your wrist even in more fashionable settings than your daily run. It’s got plenty going for it, from astounding battery life to impressively accurate health and fitness metrics, all for a totally reasonable price.

There are certain quirks to the Amazfit GTR 3 that might throw off loyalists to the Apple Watch, such as setting up and tweaking your watch via the Zepp app, but there’s plenty of opportunity for customization wherever needed. The user interface is intuitive and detailed, with all the statistics an everyday user would probably ask for from a running watch. 

If you find yourself frustrated with the back and forth of charging up your current running watch then the Amazfit GTR 3 might just be the answer to your problems, with an incredible 21 days of typical usage or 10 days of heavy use. It’s also slim, stylish and unassuming, with a classic round clock face. 

  • Read the full Amazfit GTR review
Apple Watch 3

Best running watches: Image of Apple Watch Series 3

(Image credit: Amazon)Apple Watch 3 The best running watch for people on a budget.SpecificationsSoftware: Watch OS 8Compatibility: AppleBattery life: 26 hours mixed-useMemory: 8GBSize: 38mm/42mmTODAY'S BEST DEALSView at AppleView at ApplePrimeView at AmazonSee all prices (4 found)568 Amazon customer reviews☆☆☆☆☆Reasons to buy+  Access to Apple’s Fitness+ platform + Elegant phone notifications Reasons to avoid- S3 chipset is slow - Price hasn’t dropped in years 

The Apple Watch 3 is considered the most affordable of the Apple offerings and it looks pretty similar to the Series 6 (but there are more sensors in the newer model).

It comes with a good range of band designs and has access to Fitness+, hundreds of instructor-led home workouts including HIIT sessions, yoga and spinning on your iPhone, iPad and Apple TV (but this requires an extra subscription).  

As with all Apple Watches the battery life is disappointing, especially if you track your sleep and it lacks the always-on display, so you have to flick your wrist to see the time – but some people might find this less distracting.

  • Read the full Apple Watch 3 review.
Garmin VivoActive 4S

Best running watches: Image of Garm Vivoactiv watch

(Image credit: Garmin)Garmin VivoActive 4SThe best running watch for helping you through your workout.SpecificationsSoftware: Garmin OSCompatibility: iOS, AndroidBattery life: Up to 7 daysMemory: 14 days of activity tracking dataDisplay size: 1.1 inches (diameter)TODAY'S BEST DEALSView at Competitive CyclistView at WalmartPrimeView at AmazonSee all prices (32 found)Reasons to buy+Listen to music on your watch phone-free +Animations to help you through workoutsReasons to avoid-Not packed with statistics for training -Not as advanced as other Garmin models

The Vivoactive 4S is a well suited running watch for anyone who doesn't want to spend a fortune on getting up to date statistics on their workouts, and doesn’t need a watch that’s too serious when it comes to insights on how to beat their personal best. It has a reasonable battery life of up to seven days, though this figure is likely to be a little less if you’re using the playlist setting of this watch. 

The other practical features of the Vivoactive 4S is the fact that you can use Garmin Pay to pick up groceries when you’re out and about, meaning that you can go phone free on your runs and properly detach from your screen. You can track a wide variety of exercises with this watch too, and a function where you can be coached through workouts as you’re accompanied by animations, which is a nice touch. 

This watch won’t blow your budget, and has a ton of nice features to help you along as you workout, as well as a user-friendly interface that won’t bother you as you exercise. If you don’t need in-depth statistics to really amp up your workouts, then this watch is a particularly good choice. 

  • Our full review of the Garmin VivoActive 4S is currently underway.
Apple Watch SE

Best running watches: Image of Apple SE running watch

(Image credit: Apple)Apple Watch SEThe best running watch for Apple fans on a budget.Specifications Software: WatchOS 8Compatibility: Apple onlyBattery life: 24 hours mixed useMemory: 32GBDisplay and size: 40 / 44mmTODAY'S BEST DEALSView at WalmartPrimeEditor's PickView at AmazonView at AT&TSee all prices (19 found)Reasons to buy+A more affordable Apple option+ Easy to useReasons to avoid-Lacks full features of other Apple Watches in series 

The Apple Watch SE has a larger screen than previous models, and plenty of features to keep a user happy. Though it may sound obvious, it has great compatibility with an iPhone especially when it comes to feeding through notifications, and often benefits from worthwhile deals, making it an affordable choice.

You can customize the Apple Watch SE’s interface to suit your needs; if you’re using the watch for working out, then you can see your heart rate, but if you just want the time, you can personalise it with an array of backgrounds. You can track your sleep on the Apple Watch SE, which is an interesting insight, and track lots of different activities super easily.

As with any Apple Watch, the design is familiar yet stylish, and uses a system of rings to keep users motivated to move around during the day. This is a well-loved feature among users, especially those who have more sedentary lifestyles since working from home. The battery life of the Apple Watch SE won’t blow you away, but if you don’t mind plugging your watch into charge at night alongside your phone, this shouldn’t be too much of a problem.

  • Our full review of the Garmin VivoActive 4S is currently underway.
Garmin Forerunner 235

Best running watches: Image of Garmin Forerunner 245

(Image credit: Garmin)Garmin Forerunner 235The best running watch for a tracker without the fuss.SpecificationsSoftware: Garmin Connect appCompatibility: Android & iOSBattery life: 9 daysDisplay and size: 1.23”TODAY'S BEST DEALSView at WalmartPrimeView at AmazonView at Buydig.comSee all prices (9 found)11 Amazon customer reviews☆☆☆☆☆Reasons to buy+Packed with features  + Long battery life Reasons to avoid- GPS sometimes inaccurate - No touchscreen 

The Garmin Forerunner 235 is a great value, feature-packed running watch with excellent training insights. It monitors steps, calories burned, distance traveled and intensity minutes, and has a wrist heart rate monitor and sleep tracking. However, bear in mind it can’t measure altitude or track stairs. 

The Garmin Forerunner 235 also has smart notifications, audio prompts and GPS, which we found is fairly accurate. We love the pace alerts, which are ideal for runners to keep up to date with their progress. It’s also very motivating and can help improve performance. You can customize the way you receive this info with either audio or vibrating alerts.

There are four sports modes on the Garmin Forerunner 235: run, run indoor, cycle and other. We appreciated the recovery advisor feature that predicts recovery time, as well as a heart-based assessment of the overall training impact. You can view all these features on the Garmin Connect app, which syncs all your runs. You can also share your workouts with friends via Strava.

Design-wise, it’s a fairly rugged-looking watch with a nice big display, but it weighs less than earlier Garmin watches coming in at just 42g. It has a crisp, clear screen – no touchscreen sadly – but the side buttons are super simple to use.

One of the most impressive things about the Garmin Forerunner 235 is the battery life – about 11 hours in full activity mode (using GPS with heart rate), but it doesn’t have multi-sport tracking so this watch is best suited to runners.

  • Our full review of the Garmin Forerunner 245 is currently underway.
What to look for in a running watch

Now that you know the ins and outs of running watches, you're probably wanting to rush online and buy one. Before you do that, here are a few final reminders on what to look for when shopping for the best running watch. 

First, Kieran Alger from The Run Testers recommends finding a watch with something to help monitor your heart rate. "Things like heart rate monitoring can help runners at every level to train at the right intensity; some watches will also offer pacing targets, and they'll help you understand how well you've recovered from each run, so you know how hard or easy to go in your next session," he said. "Even the cheaper watches are now packed with coaching and guidance features that you can use for motivation, effort management, and just to understand your body's responses better."

After you figure out what features are the best fit for your needs, consider your budget. Going shopping with a price point in mind can keep you from breaking the bank, especially if you are looking at higher-end watches. Alger recommends brands like Garmin or Apple for those looking for a more expensive and high-tech running watch. "If you want all the bells and whistles, a long battery life — and you've got the budget — the Garmin Enduro or Fenix range are the best of the more rugged options. For running smartwatch fans, the Apple Watch is King, and you can buy an older generation to save money," Alger said.

However, spending a large chunk of money isn't for everyone. For those looking for a running watch on a budget, Kieren also recommends a Garmin watch with fewer features than the one previously mentioned. This is the perfect route for those just starting their fitness journey. "At the more affordable end, the Garmin Forerunner 55 is a great entry-level watch," he said. "It does the basics well without overloading you with data. Next level up, the Coros Pace 2 is a fantastic all-rounder that'll have more than enough for most runners at a very competitive price. 

Round up of today's best dealsReduced PriceGarmin 010-02157-20 Fenix 6X...Garmin Fenix 6x Pro SolarWalmart$994.98$734.99ViewSee all pricesApple Watch Series 6Apple Watch 6Apple$399ViewSee all pricesGarmin Black Forerunner 945...Garmin Forerunner 945SSENSE$449ViewSee all pricesReduced PriceAmazfit GTR 3 Smart Watch for...Amazfit GTR 3Amazon$179.99$149.99ViewSee all pricesApple Watch Series 3 (GPS,...Apple Watch Series 3Amazon$269ViewSee all pricesGarmin vivoactive 4S...Garmin Vivoactive 4SBuydig.com$179.99ViewSee all pricesEditor's PickLOWEST PRICEApple Watch SE (GPS, 40mm) -...Apple Watch SEAmazon$269.98ViewSee all pricesReduced PriceGarmin Forerunner 235...Garmin Forerunner 235Amazon$285.79$239.99ViewSee all pricesWe check over 250 million products every day for the best pricespowered by Live Science

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Originally posted on: https://www.livescience.com/best-running-watches