The best smartwatches for fitness

Smartwatches are one of the best ways to measure, maintain and improve your fitness - no matter what kind of exercise you enjoy. Here’s our pick of the best devices for anyone looking to beat their PB.

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The best fitness smartwatches of 2021:

Apple smartwatches for fitness

Apple Watch Series 7

  • GPS + cellular connectivity¹
  • Blood oxygen app²
  • ECG app³
  • High and low heart rate notifications
  • Irregular heart rhythm notifications⁴
  • Stream content from Apple Music⁵
  • Water resistant up to 50m⁶
  • Always-On Retina display with 20% more screen area that Series 6
  • All-day battery life and faster charging⁷
  • Sync your favorite music, podcasts, and audiobooks (For use with GPS models)
  • watchOS 8 introduces new workout types, the Mindfulness app, the new Portraits watch face, and enhancements to Messages
Apple Watch Series 7

Apple Watch Series 7 creates a fitness regime that revolves around you. Squat, serve, stride, you name it - Apple Watch Series 7 has a workout for it. And now, there are Tai Chi and Pilates to get your endorphins going. The starting line is on your wrist. If you're a keen cyclist, Apple Watch now automatically detects when you begin pedalling and reminds you to start a workout. Fall Detection, now optimised for cycling and other workouts⁸, can call emergency services if you take a spill⁹. Love swimming? Apple Watch Series 7 is water resistant to 50 metres. So whether you’re in open water, or tracking your splits and sets at the pool, you’re covered⁶. Activity Rings show all the ways you move throughout the day - you can even share them with family and friends to encourage each other, or set up seven-day Activity challenges. Plus, with Apple Music, you’ve got 75 million tracks of musical motivation riding on your wrist⁵.

Apple Fitness+ requires watchOS 7.2 or later. £9.99/month after trial. Offer valid for three months after eligible device activation. One subscription per Family Sharing group. Plan automatically renews until cancelled. Restrictions and other terms apply. Find out more details here.

Apple Watch SE

  • GPS + cellular connectivity¹
  • High and low heart rate notifications
  • Irregular heart rhythm notification⁴
  • Stream content from Apple Music³
  • Water resistant up to 50m⁶
  • Retina display
  • Battery lasts up to 18 hours⁷
Apple Watch SE

With powerful features to help keep you connected, active, healthy and safe, Apple Watch SE is the ideal fitness companion. It works swimmingly in water, as it’s is water resistant to 50 metres⁶, so you can dive right in and start tracking your splits and sets in the pool. Check your heart rate at any time with the Heart Rate app. Or get heart health notifications if you have an irregular heart rhythm or an unusually high or low heart rate⁴. You can even stay centred with the Mindfulness app, which helps you reduce everyday stress, be more present and mentally prepare to take on new challenges. Finally, you’ll get three months of Apple Fitness+ free when you buy an Apple Watch⟡, featuring world-class workouts by the world’s top trainers. Use Apple Fitness+ for a different kind of fitness experience tailored to you. There are new workouts every week ranging from 5 to 45 minutes, and even workout modes for HIIT, strength training, pilates and yoga.

Apple Fitness+ requires watchOS 7.2 or later. £9.99/month after trial. Offer valid for three months after eligible device activation. One subscription per Family Sharing group. Plan automatically renews until cancelled. Restrictions and other terms apply. Find out more details here.

Apple Watch Nike SE

  • High and low heart rate notifications
  • Irregular heart rhythm notification⁴
  • Stream content from Apple Music³
  • Water resistant up to 50m⁶
  • Retina display
  • Battery lasts up to 18 hours⁷
Apple Watch Nike SE

Apple Watch Nike SE has been created with the same design and large display as Apple Watch SE, and was made to move with you. The new Bounce watch face reacts to your motion, and you can customise it with your favourite colours or gradient to make exercising with Apple Watch a truly dynamic experience. Use Nike Run Club as your coach and diary - see how far you’ve come, plan your next runs and stay motivated. In Guided Runs on Nike Run Club, expert coaches - and some Nike legends - will cheer you on, stride after stride. Pace Charts let you see your progress throughout a run, directly on your Apple Watch. And even though getting a run in every week isn’t always easy, when you do, Nike Run Club gives you a streak badge. Each week you keep your streak alive, you unlock the next badge.

Apple Fitness+ requires watchOS 7.2 or later. £9.99/month after trial. Offer valid for three months after eligible device activation. One subscription per Family Sharing group. Plan automatically renews until cancelled. Restrictions and other terms apply. Find out more details here.

Android smartwatches for fitness

Samsung Galaxy Watch4

  • GPS + cellular connectivity¹
  • Uses Samsung Health
  • ECG measurements²
  • Blood Pressure monitoring³
  • Blood oxygen level tracking
  • Body composition tracking
  • Stream music⁴
  • 5ATM/IP68/MIL-STD-810G⁵
Samsung Galaxy Watch4

Samsung has engineered the all-new Galaxy Watch4 to be the companion to your journey towards a healthier you. Measure your body composition and get to know your body fat percentage, skeletal muscle, body water and more to achieve your goals - the new Samsung BioActive Sensor captures your body composition in real time. Count steps, check calories and stay on the grid with GPS. Galaxy Watch4 detects physical activity to track your routines and supports more than 90 exercises for a more accurate report of your workout. You can even compete with friends in fun competitions through a live message board. Challenges come with commemorative badges and a point system to get you moving - and staying in pole position.

¹Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability. International roaming is not supported. Check apple.com/watch/cellular for participating wireless carriers and eligibility. See support.apple.com/en-us/HT207578 for additional setup instructions.

²Blood Oxygen app measurements are not intended for medical use, including self-diagnosis or consultation with a doctor, and are only designed for general fitness and wellness purposes.

³The ECG app is available on Apple Watch Series 4 and later (not including Apple Watch SE) with the latest versions of iOS and watchOS. See apple.com/watch for compatibility details. ECG is not intended for use by people under 22 years old. With the ECG app, Apple Watch is capable of generating an ECG similar to a single-lead electrocardiogram.

⁴Irregular rhythm notification requires the latest versions of watchOS and iOS. It is not intended for use by people under 22 years old or those who have been previously diagnosed with atrial fibrillation (Afib).

⁵Audio streaming requires an Apple Watch (GPS + Cellular) Series 3 or later. Apple Music requires a subscription.

⁶Apple Watch Series 7, Apple Watch SE, and Apple Watch Series 3 have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Series 7 is also rated IP6X dust resistant.

⁷Apple Watch Series 7: Battery life varies by use and configuration. See apple.com/batteries for more information. Apple Watch SE and Apple Watch Nike SE: Apple Watch All-Day Battery Life testing was conducted by Apple in August 2020 using pre-production Apple Watch SE (GPS) and Apple Watch SE (GPS + Cellular), each paired with an iPhone; all devices were tested with pre-release software. Battery life varies by use, network coverage, configuration and many other factors; actual results will vary. See apple.com/uk/batteries and apple.com/uk/watch/battery for more information.

⁸Fall Detection in workouts coming soon. Fall Detection updates are available on Apple Watch Series 4 and later with watchOS 8 and later.

⁹Apple Watch Series 7 (GPS + Cellular) and Apple Watch SE (GPS + Cellular) can use a mobile data connection for Emergency SOS. To use Emergency SOS on an Apple Watch without cellular connectivity, your iPhone needs to be nearby. If your iPhone isn’t nearby, your Apple Watch needs to be connected to a known Wi‑Fi network and you must set up Wi‑Fi Calling.

Apple Watch Series 7 requires an iPhone 6s or later with iOS 15 or later. Apple Fitness+ requires watchOS 7.2 or later.

Not all features will be available if the Apple Watch is set up through Family Setup. Wireless service plan required for cellular service. Contact your service provider for more details. Check apple.com/watch/cellular for participating wireless carriers and eligibility.

¹Fitness tracking on the watch can be used as standalone, but data stored in the watch may only be partially displayed after a certain period of time. Smartphone pairing is required in order to keep all data stored. Feature requires compatible smart TV, Samsung SmartThings app and Bluetooth connection.

²ECG and BP feature only to be used by 22 years+.

³For accurate BP readings, monthly calibration required by GP or BP monitor & arm cuff. Requires a Galaxy smartphone running Android 7.0 or above.

⁴Requires Spotify Premium subscription and network connection. Spotify is only supported on devices running version 8.5.56 and later. Requires configuring touchpad settings through the Galaxy Wearables app. Galaxy Note20 and Galaxy Buds Live sold separately.

⁵IP68 is based on test conditions for submersion in up to 1.5 metres of freshwater for up to 30 minutes. US Military Standard Compliant (MIL-STD-810G).