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.

Apple smartwatches for fitness

Apple Watch Series 9

  • GPS and cellular connectivity¹

  • Advanced health features, such as Cycle Tracking² with retrospective ovulation estimates

  • Swim proof up to 50m³ and dustproof⁴ with a crack-resistant front crystal

  • Innovative safety features, such as Crash Detection, can connect you to emergency services

  • Blood oxygen⁵ and ECG app⁶, with heart rate and rhythm notifications⁷

Apple Watch Series 9 helps you stay connected, active, healthy and safe - providing you with powerful insights and help when you need it. Featuring double tap, the S9 chip enables a magical new way to quickly and easily interact with your Apple Watch without touching the screen⁸. With an even brighter display you can track your overall well-being with temperature sensing⁹, and the watch will work seamlessly with your other Apple devices with faster on-device Siri and Precision Finding for iPhone¹⁰. The Workout app gives you a range of ways to train plus advanced metrics for more insights about your workout performance. And Apple Watch comes with three months of Apple Fitness+ free¹¹.

Apple Watch SE

  • GPS + cellular connectivity¹

  • High and low heart rate notifications

  • Irregular heart rhythm notification²

  • Stream content from Apple Music³

  • Water resistant up to 50m⁴

  • Retina display

  • Battery lasts up to 18 hours⁵

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 metres⁴, 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 rate². 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

Android smartwatches for fitness

Samsung Galaxy Watch5

  • BIA body composition¹

  • Bioactive sensor

  • Blood oxygen monitor²

  • Heart rate and blood pressure monitor³

  • Tracking, goal setting and coaching

  • Uses Samsung Health

  • 4-sleep stage analysis for general wellbeing

  • Water resistant to 50 metres⁴

  • GPS

Achieving your fitness goals and staying on top of your health has never been easier, thanks to Galaxy Watch5. Track your workouts, set goals, compete with friends, and watch videos from expert coaches - all with Samsung Health. Get a complete picture of your overall fitness and wellbeing with body composition¹, heart rate, and blood pressure readings³. Plus, precision sleep-tracking tools⁵ provide valuable insights to help you improve the quality of every slumber, including blood oxygen monitoring⁴, stages of sleep analysis, and snore detection. So, you can make sure your well rested and ready for every big workout.

Samsung Galaxy Watch5 Pro

  • BIA body composition¹

  • Bioactive sensor

  • Heart rate and blood pressure monitor³

  • Turn by turn GPS navigation

  • Track back - return home guidance

  • Fall detection monitoring⁶

  • Uses Samsung Health

Galaxy Watch5 Pro is so much more than just a workout partner. Whether you're trail biking, wild swimming, or hiking in the great outdoors, you will stay on track and find your way home thanks to active GPS guidance. You can keep tabs on your health with the option to measure heart rate, blood pressure³, and body composition¹. And with sleep tracking and coaching², you can improve the quality of your slumber and make sure you're ready to take on any challenge. Plus, with sapphire crystal glass, a tough titanium frame, and a magnetic D-buckle strap, you can enjoy great performance without compromising on style.

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 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.

Google Pixel Watch 2

  • Safety Check¹

  • 24-hour battery²

  • Oxygen, skin temperature, and heart rate tracking³⁴⁵

  • Sleep tracking

  • Fall Detection

Personalised for your health and productivity, the Google Pixel Watch 2 is ladened with features such as Safety Check¹, ECG readings²,³ and Sleep tracking, allowing you to feel more in control of your health than ever. Even worrying about your battery life can become a problem of the past, with an enhanced 24-hour battery with always-on display and only requiring 80 minutes of charging to get a full day of battery life⁴. Feel protected with Fibit’s in-app tools², like guided breathing sessions, to help manage any forms of stress, no matter where you are, enabling you to tune in to your wellness at any time of day.

Terms and conditions

Apple Watch Series 9 requires iPhone Xs or later with iOS 17 or later.

¹Wireless service plan required for cellular service. Contact your service provider for more details. Connection may vary based on network availability, participating network providers and eligibility. Additional setup instructions

²The Cycle Tracking app should not be used for birth control or to diagnose a health condition.

³Apple Watch Series 9 has a water resistance rating of 50 meters under ISO standard 22810:2010. This means it may be used for shallow-water activities like swimming in a pool or ocean. Apple Watch Series 9 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth. Water resistance is not a permanent condition and can diminish over time. More information on Apple Watch water resistance

⁴Apple Watch Series 9 is rated IP6X dust resistant. 

⁵The Blood Oxygen app is for wellness purposes only and not for medical use. 

⁶The ECG app is available on Apple Watch Series 4 and later (excluding Apple Watch SE) and can generate an ECG similar to a single-lead electrocardiogram. Intended for use by people 22 years old and over. 

⁷Irregular 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 (AF).  

⁸Available late 2023. Requires Apple Watch Series 9 or Apple Watch Ultra 2.  

⁹The temperature sensing feature is not intended for medical use. 

¹⁰Requires an iPhone and Apple Watch with second-generation Ultra Wideband chip.  

¹¹A subscription is required for Apple Fitness+. 

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-gb/HT207578 for additional setup instructions.

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).

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.

⁴Apple 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.

⁵Apple Watch 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.

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

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.

¹Do not measure your body composition if you are pregnant, have an implanted pacemaker or other implanted medical devices.

²SpO2 is defined as saturation of percutaneous oxygen. Normal levels in humans are measured at approximately 95-100%. Factors like vigorous exercise, the amount of oxygen in the air, your elevation, and various health conditions can all result in lower readings.

³ECG and BP feature only to be used by 22 years+. For accurate BP readings, monthly calibration required by GP or BP monitor and arm cuff. Requires a Galaxy smartphone running Android 8.0 or above.

⁴Water resistance rating of 50 meters under the ISO standard 22810:2010. It is not suitable for diving or high-pressure water activities.

⁵Compatible Smartphone required.

⁶Can initiate Emergency call and message if you take a hard fall and don't seem to move. Galaxy Watch4 Series cannot detect all falls. The more physically active you are, the more likely you are to trigger Fall Detection due to high impact activity that can appear to be a fall. Sending SOS calls and messages requires network connection and smartphone pairing.

¹ECG and BP feature only to be used by 22 years+. For accurate BP readings, monthly calibration required by GP or BP monitor and arm cuff. Requires a Galaxy smartphone running Android 7.0 or above.

²Available to all Vodafone Pay Monthly Mobile customers on a Red Plan. You will use the allowance from your current Pay Monthly or SIM only plan to call from your Samsung Watch. For initial set-up, wireless network and pairing with an Android smartphone with OS Android 5.0 or newer and at least 1.5GB RAM required.

³Water resistance rating of 50m under the ISO standard 22810:2010. It is not suitable for diving or high-pressure water activities.

¹Data rates may apply. Safety Check requires location-enabled and 4G LTE service or an Internet connection. Safety Check is dependent upon network connectivity and other factors and may not be reliable for emergency communications or available in all areas or languages. See the Pixel watch safety page for more details.

²Maximum battery life is approximate and is based on testing conducted on pre-production hardware and software, using default settings with a median Pixel user battery usage profile across a mix of talk, data, standby and use of other features. Battery life depends on features enabled, usage, environment and many other factors. Use of certain features will decrease battery life. Actual battery life may be lower.

³Some features may require a Fitbit account, mobile app and Fitbit premium membership. Not intended for medical purposes, but may provide information that can help you to manage your well-being. Consult your healthcare professional for questions about your health.

⁴Not available in all countries. Significant changes in ambient temperature may negatively impact skin temperature tracking

⁵Not available in all countries. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose. It is intended to help you manage your wellbeing and keep track of your information 

⁶ECG app and irregular heart rhythm notifications are only available in selected countries. Not intended for use by people under 22 years old or with other known arrhythmias. Data for irregular heart rhythm notifications is recorded only when the user is still or sleeping. See Fitbits ECG page for additional details.