10 Best Smart Fitness Watch Kids in The UK

Last updated on 12/08/2025

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Amzhero Smart Watch for Women Men Kids Boys, Fitness Tracker Watch with 24/7 Heart Rate, Blood Oxygen, Blood Pressure, Step Counter, 5ATM Waterproof Pedometer Activity Trackers for Android iOS

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Why We Love It

Comprehensive health monitoring features.
Supports 24 sports modes.
Impressive 15-day battery life.

Main Highlights

【Health Monitoring and Sleep Tracker】Measure your health indicators (SpO2, heart rate, stress, female menstrual cycle, etc.) 24/7. In addition, this smart fitness watch automatically monitors your sleep status (deep sleep, light sleep, wake up) and provides comprehensive sleep quality analysis, so that healthy sleep starts now.
【24 Sports Modes & IP68 Waterproof】Amzhero Fitness Tracker supports 24 sports such as walking, running, mountaineering, swimming, yoga, hiking, cycling, treadmill, etc. IP68 waterproof design can be worn while washing hands, getting wet or swimming. Not applicable for high humidity and corrosive locations such as spas and seawater.
【Smart Alerts Via BLE 5.0】When connected to your mobile phone via BLE5.0, all notifications, including incoming calls, text messages and social media app alerts, will vibrate on your wrist via the watch, so you won't miss any important moments. Meanwhile, it will vibrate to remind you when you are sedentary to prevent cervical and lumbar spine diseases.
【15-Day Battery Life & Wide Compatibility】This activity trackers is equipped with a 300mAH high-capacity battery that charges for 2 hours and supports 15 days standby time. Large capacity, low power consumption design, longer battery life. Our free app "Gloryfit" supports smartphones with iOS 9.0 / Android 6.0 or later. Each package contains 2 silicone straps.
【Ultra-slim & Custom Watch Dials】1.47-inch full touch screen, smart life at your fingertips. With a slim and lightweight ergonomic design that fits your wrist, you can choose from more than 100 carefully designed dials in the app, and upload your own photos to change the dials as you like, making every day a unique experience!

BIGGERFIVE Kids Smart Watch, 1.8" Fitness Watch Pedometer, Heart Rate, IP68 Waterproof, Sleep Tracker, Calorie Step Counter, 5 Puzzle Games with/without APP for Girls Boys Teens 5-16

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Why We Love It

Tracks extensive daily activities.
Promotes healthier lifestyle habits.
Perfect gift for children.

Main Highlights

All-Day Activity Tracking: BIGGERFIVE BRAVE 2 Smart Watch for Kids Teens Automatically counts steps, distance, calories burned, and active minutes. Supports 80 sports modes like walking, running, cycling, basketball, and more.
Without/With APP: BIGGERFIVE kids fitness tracker watch can be used seperately without APP and phone. But with APP, you could explore more functions. Compatible with Android 6.0+ and iOS 9.0+ smartphones.
Comprehensive Health Monitoring: Monitors real-time heart rate and tracks sleep patterns to promote your child's well-being.
Customizable Watch Face &1.8" HD Touch Screen：Our kids smartwatch boasts a 1.8" HD touch screen and offers 100+ exquisite cloud dials in APP BIGGERFIVE. Elevate personal style with custom dials using your kids' own photos and ignite their creativity!
Puzzle Gamems under Parents' Control: 5 built-in puzzle games can help train your child's reaction ability and calculation ability. You could restrict your child from playing games at school in the BIGGERFIVE APP (supports also lock game all the time).
Encourages Healthy Habits & Perfect Gift Idea: BIGGERFIVE kids smart watch motivates children to develop good exercise habits and stay healthier. Ideal gift for birthdays, Christmas, and other special occasions.

BIGGERFIVE Kids Smart Watch, 1.8" Fitness Watch Pedometer, Heart Rate, Sleep Tracker, IP68 Waterproof, Calorie Step Counter, Puzzle Games with/without APP for Girls Boys Teens 5-16, Blue

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Why We Love It

Tracks activities with precision.
80 diverse sports modes supported.
Customizable and interactive watch face.

Main Highlights

All-Day Activity Tracking: BIGGERFIVE BRAVE 2 Smart Watch for Kids Teens Automatically counts steps, distance, calories burned, and active minutes. Supports 80 sports modes like walking, running, cycling, basketball, and more.
Without/With APP: BIGGERFIVE kids fitness tracker watch can be used seperately without APP and phone. But with APP, you could explore more functions. Compatible with Android 6.0+ and iOS 9.0+ smartphones.
Comprehensive Health Monitoring: Monitors real-time heart rate and tracks sleep patterns to promote your child's well-being.
Customizable Watch Face &1.8" HD Touch Screen：Our kids smartwatch boasts a 1.8" HD touch screen and offers 100+ exquisite cloud dials in APP BIGGERFIVE. Elevate personal style with custom dials using your kids' own photos and ignite their creativity!
Puzzle Games under Parents' Control: 5 built-in puzzle games can help train your child's reaction ability and calculation ability. You could restrict your child from playing games at school in the BIGGERFIVE APP (supports also lock game all the time).
Encourages Healthy Habits & Perfect Gift Idea: BIGGERFIVE kids smart watch motivates children to develop good exercise habits and stay healthier. Ideal gift for birthdays, Christmas, and other special occasions.

BIGGERFIVE Kids Smart Watch, 1.8" Fitness Watch Pedometer, Heart Rate, IP68 Waterproof, Sleep Tracker, Calorie Step Counter, 5 Puzzle Games with/without APP for Girls Boys Teens 5-16, Nylon

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Why We Love It

Tracks all-day activity effortlessly.
Monitors real-time health metrics.
Ideal gift for active kids.

Main Highlights

All-Day Activity Tracking: BIGGERFIVE BRAVE 2 Smart Watch for Kids Teens Automatically counts steps, distance, calories burned, and active minutes. Supports 80 sports modes like walking, running, cycling, basketball, and more.
Without/With APP: BIGGERFIVE kids fitness tracker watch can be used seperately without APP and phone. But with APP, you could explore more functions. Compatible with Android 6.0+ and iOS 9.0+ smartphones.
Comprehensive Health Monitoring: Monitors real-time heart rate and tracks sleep patterns to promote your child's well-being.
Customizable Watch Face &1.8" HD Touch Screen：Our kids smartwatch boasts a 1.8" HD touch screen and offers 100+ exquisite cloud dials in APP BIGGERFIVE. Elevate personal style with custom dials using your kids' own photos and ignite their creativity!
Puzzle Gamems under Parents' Control: 5 built-in puzzle games can help train your child's reaction ability and calculation ability. You could restrict your child from playing games at school in the BIGGERFIVE APP (supports also lock game all the time).
Encourages Healthy Habits & Perfect Gift Idea: BIGGERFIVE kids smart watch motivates children to develop good exercise habits and stay healthier. Ideal gift for birthdays, Christmas, and other special occasions.

Kids Smart Watch for Boys,IP68 Waterproof Kids Fitness Tracker Watch with 1.5 Inch DIY Face,Heart Rate Sleep Monitor,19 Sport Modes,Calories Counter,Alarm Clock,Great Gifts for Children 6+ (Blue)

26% OffFree Shipping

Why We Love It

Ideal gift for kids.
Customizable watch face.
Health monitoring features.

Main Highlights

【Great Gift for Kids Girls Boys】: Kids waterproof smart watch has a fashion and cute design 1.5-inch colorful touch screen can adjust brightness,and the display screen will automatically light up when you raise wrist. This watch will be a great Birthday,New year,Christmas gift for kids, boys girls teens.
【DIY Watch Face and Adjustable Strap】:This smart watch can customize wallpaper.Kids can choose the wallpaper that comes with the “HBAND” App or upload the favorite photo as wallpaper.You can customize the dial through the "HBAND" APP and choose your favorite dial style.
【7/24 Heart Rate Monitor and Sleep Tracker】Smart watch can accurately monitor the data of heart rate.You can view these data directly on kids watch to help you better understand your children health.You should adjust your lifestyle reasonably,provide comprehensive analysis of kids sleep quality (deep sleep,light sleep and wake up time) to help kids develop a healthier lifestyle. (NOTE:The measurement data is for reference only and cannot be used as medical monitoring data)
【Make Kids Fitness Fun and Build Healthy Habits】All-Day Activity Tracking: Automatically tracks your kids steps,distance and calories burned.Supports 19 activity modes:swimming,running,walking,cycling,yoga,football,basketball,etc. Sedentary reminder,Drink water reminder,Call/SMS/Message reminder,etc., IP68 waterproof, ready play in water.
【Wide Compatibility and Support Multi-languauge】The fitness watch support and compatible with most Android 4.4 above, IOS 8.0 or higher smart phones. Kids watch support Chinese,English,German,French,Spanish,Italian,Japanese, Follow the phone system language changes. 2 kinds of clocks display, 12 hours or 24 hours can be set, if you phone is 24 hours clock display, then the fitness tracker is 24 hours clock display.

BIGGERFIVE Kids Fitness Tracker Watch, Pedometer, Heart Rate, 5ATM Waterproof, Sleep Monitor, Alarm Clock, Calorie Step Counter, Puzzle Games, 1.5" HD Touch Screen Smart Watch for Boys Girls Ages 3-14

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Why We Love It

Active health tracking.
Super waterproof design.
Customizable HD touch screen.

Main Highlights

BIGGERFIVE BRAVE Fitness Watch for Kids with All-Day Activity Tracking: Automatically counts steps, distance, calories burned, and active minutes. Supports 14 sports modes like walking, running, cycling, swimming, basketball, and more.
Comprehensive Health Monitoring: Monitors real-time heart rate, and tracks sleep patterns to promote your child's well-being.
50M/5ATM Super Waterproof Design: Suitable for active water play up to 50 meters deep, making it perfect for pool time and water activities.
Wide Compatibility & User-Friendly Interface: Compatible with Android 6.0+ and iOS 9.0+ smartphones. Kid-friendly interface ensures easy operation, while the family account feature simplifies management of multiple kid's trackers.
Customizable Watch Face&1.5" HD Touch Screen：Our kids smartwatch boasts a 1.5" HD touch screen and offers 50 exquisite cloud dials. Elevate personal style with custom dials using your kids' own photos and ignite their creativity!

BIGGERFIVE Vigor 2 L Kids Fitness Tracker Watch for Boys Girls Ages 5-15, Activity Tracker, Heart Rate Sleep Monitor, IP68 Waterproof, Pedometer, Calorie Step Counter Watch, Lilac

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Why We Love It

Track child's daily activity effortlessly.
Supports various sport modes.
Monitors heart rate 24/7.

Main Highlights

[ALL-DAY ACTIVITY TRACKING] Track your child's daily steps, calories burned, and distance walked. To keep the motivation high, kids earn virtual medals when they reach specific activity goals, making fitness fun and engaging.
[10+ SPORT MODES & IP68 WATERPROOF] From running to basketball, soccer to cycling, our kids fitness tracker supports over 10 different sports modes. Whether your child is swimming (IP68 waterproof, safe for pool but not seawater) or showering, the BIGGERFIVE tracker is built to keep up with their active lifestyle.
[HEART RATE & SLEEP MONITORING] Stay informed about your child's heart rate data 24/7. The sleep-monitor feature of our kids watch provides insights into various sleep stages, such as the duration of deep sleep, and offers helpful tips to improve sleep quality.
[COMFORTABLE BAND & LONG BATTERY LIFE] Crafted with a soft, lightweight silicone band, this kids pedometer is designed for all-day comfort. Enjoy a long-lasting battery life of up to 7 days on a single charge, with just a 2-hour recharge time.
[PERFECT GIFT FOR SPECIAL OCCASION] Packaged beautifully, the kids fitness watch makes an ideal gift for birthdays, Christmas, or any special occasion. Paired with BIGGERFIVE App, you can explore additional features and access detailed activity and health reports, making it a fantastic tool for both kids and parents.

IMFRCHCS Fitness Tracker,Smart Watch with 1.47" TFT Touch Display,137 Sport Modes Fitness Watch with Heart Rate Sleep Monitor, Step Counter,IP68 Waterproof Activity Trackers for Women Men

36% OffFree Shipping

Why We Love It

Large display for easy reading.
Over 130 fitness modes available.
Sleep tracking for better rest.

Main Highlights

💜【Ultra-large 1.47" TFT Display】The large 1.47" TFT display offers a 10.5% larger viewing area, making it easier to read. Whether you're checking your heart rate on a run or your messages on the way to work, see everything you need with the flick of your B6 Fitness Tracker.
💜【130+ Multiple Fitness Modes】No matter you are into outdoor or indoor workouts, there is something for you. B6 activity tracker comes with 7 professional workout modes – including walking, running, cycling, swimming – offer high-level fitness tracking with personalized guidance. You can also find your favourite workouts from one of the 130 customized workout modes to help you stay active and engaged.
💜【Sleep Better Every Night】With the help of scientific, meticulous sleep monitoring technologies, the B6 Smart Watch records your real-time sleep condition at different stages such as deep sleep, light sleep and REM, improving your sleeping habits and the quality of your sleep.
💜【IP68 Waterproof Watch】Whether enjoy cool splashes in shallow water or snorkeling, you can wear your tracker all the time. 5 ATM water resistance rating, making daily wear more worry-free.
💜【Convenience in Daily Life】The fitness tracker can notify you of new messages, incoming calls, weather, reminders, etc., allowing you to be up to beats with your life and work. It can also make your life more convenient with music playback control, remote shutter and finding your phone.

JOYELE Smart Watch for Kids, Tempered Glass Fitness Sport Watch Boy Girls Teens with 19 Sport Modes, Pedometer, Sleep Monitor, Kids Watch Birthday Gifts Toy Gift for Girls Boys 6-16 (Purple)

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Why We Love It

Durable and safe design.
Waterproof for everyday use.
Smart notifications for convenience.

Main Highlights

Tempered Glass Kids Watch: The smart watch for kids features a tempered glass screen for enhanced durability, protecting it from bumps and falls and keeping your child safe from potential scratches.
Smart Watch with Watch Screen Protector: JOYELE kids watch features a durable tempered glass screen and comes with an additional HD screen protector for double the protection. Due to its small size, the screen protector may sometimes come loose during shipping. If you find it's not in the packaging, please let us know.
Waterproof Activity Tracker: JOYELE smart watch for kids boys girls supports 19 sports modes including running, cycling, ball games, etc. The kids watch can measure heart rate, steps, calories and exercise distance. Because the watch is waterproof, you don’t worry about daily hand washing or sweating during exercise.
Smart Notifications: Support a variety of smart alerts, including incoming calls, messages (Facebook, WhatsApp, etc.), daily reminders, etc., which provides much convenience for your child's life and won't miss any important information. Tips: the kids boys girls watch for watch does not support SIM card.
Wide Compatibility: Compatible with Android 4.4+ and iOS 8.0+ smartphones. Kid-friendly interface ensures easy operation. The smart watch for kids is suitable for kids aged 3 years old+.
Gift for Kids Boys Girls: If you want to give your child a suitable, usable and fun gift, this smart sport watch for kids is a great choice as a birthday, Christmas, Easter or holiday gift for boys and girls.

Accutime Sonic The Hedgehog Kids Smart Watch Fitness Tracker for Boys & Girls, Green, 40mm, Modern

12% OffFree Shipping

Why We Love It

Kid-friendly features and design.
Trendy with Minecraft characters.
Includes camera and games.

Main Highlights

The Minecraft kids smart watch comes loaded with kid-friendly features for your child to enjoy smart wearables just like the grown ups! However unlike smartwatches for adults, this watch is designed specifically with kids in mind.
This Minecraft kids wearable includes a selfie camera for taking pictures, photo album viewer, video player, voice recorder, calculator, alarm clock, pedometer step counter, various playable games, and changeable watch faces.
We put careful detail and thought into designing and developing this smart watch for children. This smart wearable for kids is trendy, fashionable, and features designs of their favorite Minecraft characters.
International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

8.7

Excellent

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We scanned 581 products

We reviewed these offers relevant to the Smart Fitness Watch Kids within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Amzhero, BIGGERFIVE, Slothcloud, IMFRCHCS, JOYELE, Accutime, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Smart Fitness Watch Kids in the market, we considered we took a deep dive into 2906 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Amzhero Smart Watch for Women Men Kids Boys, Fitness Tracker Watch with 24/7 Heart Rate, Blood Oxygen, Blood Pressure, Step Counter, 5ATM Waterproof Pedometer Activity Trackers for Android iOS. We love many things about this product by Amzhero. What sets it apart from the competition is Comprehensive health monitoring features. , Supports 24 sports modes. , Impressive 15-day battery life.
The best value product for most shoppers and where user satisfaction is continuously the highest is BIGGERFIVE Kids Smart Watch, 1.8" Fitness Watch Pedometer, Heart Rate, IP68 Waterproof, Sleep Tracker, Calorie Step Counter, 5 Puzzle Games with/without APP for Girls Boys Teens 5-16 by BIGGERFIVE based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Smart Fitness Watch Kids and the best cost-to-value ratio is IMFRCHCS Fitness Tracker,Smart Watch with 1.47" TFT Touch Display,137 Sport Modes Fitness Watch with Heart Rate Sleep Monitor, Step Counter,IP68 Waterproof Activity Trackers for Women Menat IMFRCHCS with a 36% discount.
Our list of the best Smart Fitness Watch Kids is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Smart Fitness Watch Kids in The UK

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We scanned 581 products

We concluded that: