10 Best Fitness Tracker For Kids in The UK

Last updated on 29/08/2025

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Garmin vívofit Jr.3, Fitness Tracker for Kids, Includes Interactive App Experience, Swim-Friendly, Up To 1-year Battery Life, Adjustable watch band, Cosmic Black

6% Off

Why We Love It

Interactive app adventures for kids.
Durable and swim-friendly.
Tracks steps and sleep.

Main Highlights

Children's fitness tracker includes an interactive app experience that lets children go on a Garmin World Tour
Children can tour and take educational quizzes about the exciting new places they uncover
Durable, swim-friendly fitness tracker features a large colour display with multiple watch face options
Motivates children to achieve active minute goals that unlock entertaining app adventures, games and icons
For easy chore management, parents can use the Garmin Jr. app to assign tasks, schedule alerts and alarms, and reward children for good behaviour
See the full picture by tracking your child’s steps, sleep and 60 minutes of daily recommended activity
Timed activities let you track your child’s steps and estimated distance during playtime, football practice and anything else you can think of; view saved activities later in the Garmin Jr. app
Quickly access your child’s emergency contact information with the ICE (in case of emergency) widget
Toe-to-Toe step challenges let children engage in friendly step competitions
Up to 1 year of battery life - no recharging needed, and the battery is parent replaceable

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)

13% 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 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

28% OffFree Shipping

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 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

Free Shipping

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.

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

17% OffFree Shipping

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.

Heroange Kids Smart Watch for Girls Boys,IP68 Waterproof Kids Fitness Tracker Watch with 1.83" Face,Heart Rate Sleep Monitor,19 Sport Modes,Puzzle Games with APP,Great Gifts for Teens 6+,Black

23% OffFree Shipping

Why We Love It

Tracks activity effortlessly and accurately.
Customizable designs for personal style.
Engaging games promote learning fun.

Main Highlights

All Day Activity Tracking: Smart Watch for Kids Girls Boys watches. Automatically tracks your kids steps,distance and calories burned. Supports 19 Sport modes: Running,walking,cycling,yoga,football,basketball,etc. Sedentary reminder,Drink water reminder,Call/SMS/Message reminder,etc
Without/with app: The girl's watches can perfectly match clothes, shoes and jewelry. Kids Watch can be used separately without app and telephone. Support and compatible with the most Android 5.0 or higher, iOS 10 or via smartphones. With the app, however, you can have your child explored more interesting and rich functions
Sleep Tracking & Heart Rate: Adjust 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)
DIY Watch Face and Adjustable Strap : This smart watch can customize wallpaper. Kids can choose the wallpaper that comes with the “H BAND” App or upload the favorite photo as wallpaper.You can customize the dial through the "H BAND" APP and choose your favorite dial style
Puzzle Games under Parents' Control: 12 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 H BAND APP. And, with the app, you can make it possible to limit the playback of puzzle games in parental control mode
Great Gift for Kids Girls Boys : Kids waterproof smart watch has a fashion and cute design 1.83'' 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

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

20% OffFree Shipping

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 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

21% OffFree Shipping

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 Fitness Tracker Watch for Kids Girls Boys Ages 5-15, Activity Tracker, Pedometer, Heart Rate Sleep Monitor, IP68 Waterproof Calorie Step Counter Watch with Alarm Clock

Free Shipping

Why We Love It

Monitors health effectively.
Encourages active lifestyle.
Waterproof and durable.

Main Highlights

[ALL-DAY ACTIVITY TRACKING] Automatically tracks your kids steps, distance and calories burned. Supports 10+ activity modes: Walking, Running, Bicycle, Dance, Basketball, Football, Tennis, Climbing, Workout, etc.
【 HEART RATE & SLEEP TRACKER & SILENT ALARM CLOCK 】 The fitness tracker can automatically monitor your kids daily real-time heart rate and track how well your kids sleep at night, get the data about your kids sleep trends through the night in the app.The silent alarm clock can wake up your kids without disturbing others.
【 IP68 SWIMMING WATERPROOF 】 IP68 high-grade waterproof allows your kids to carry out more water activities, kids can also wear this fitness tracker watch while enjoying pool time.
【 BUILT-IN USB DESIGN & LONG BATTERY TIME 】 You can charge the fitness tracker by any USB adapter without requiring an extral charger. Kids spend less time charging & more time moving, charging for 1-2 hours, the fitness tracker battery can last up to 7 days.
【 COMPATIBILITY 】 BIGGERFIVE Vigor kids fitness tracker watch with free app "BIGGERFIVE", compatible with smartphone.

BIGGERFIVE Fitness Tracker Watch for Kids Boys Girls Teens, Pedometer Watch, Activity Tracker, Sleep Monitor, Calorie Counter, Silent Alarm Clock, IP67 Waterproof Step Counter Watch (Dual Straps)

Free Shipping

Why We Love It

Ultra-slim, kid-friendly design.
Interchangeable colorful straps.
Tracks all-day activity.

Main Highlights

[ULTRA SLIM & DUAL STRAPS] This exclusive ultra-slim and lightweight fitness tracker is specially designed for kids 5+, with a total weight of only 17g, with more emphasis on children's wearing comfort, make kids more willing to wear and build healthy habits.The fitness tracker also come with dual straps in two different colors, so kids can choose one to start their day.
[ALL-DAY ACTIVITY TRACKING] Automatically tracking your kids steps, distance and calories burning, you can see the data easily by tapping the watch display or checking your phone's app.
[SLEEP TRACKER & SILENT ALARM CLOCK] Automatically track how well you sleep at night, get the data about your sleep trends through the night in the app.The silent alarm clock can wake you up without disturbing others.
[BUILT-IN USB DESIGN & LONG BATTERY TIME] You can charge the fitness tracker by any USB adapter without requiring an extral charger. Charging for 1-2 hours, the fitness tracker battery can last up to 7 days.
[COMPATIBILITY] kids fitness tracker watch With free app "VeryFitPro" , Compatible with smartphone.

8.7

Excellent

We scanned 1778 products

We reviewed these offers relevant to the Fitness Tracker For 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 Garmin, Slothcloud, BIGGERFIVE, Heroange, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Fitness Tracker For Kids in the market, we considered we took a deep dive into 8891 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 Garmin vívofit Jr.3, Fitness Tracker for Kids, Includes Interactive App Experience, Swim-Friendly, Up To 1-year Battery Life, Adjustable watch band, Cosmic Black. We love many things about this product by Garmin. What sets it apart from the competition is Interactive app adventures for kids, Durable and swim-friendly, Tracks steps and sleep.
The best value product for most shoppers and where user satisfaction is continuously the highest is 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) by Slothcloud based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Fitness Tracker For Kids and the best cost-to-value ratio is 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, Blueat BIGGERFIVE with a 28% discount.
Our list of the best Fitness Tracker For 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 Fitness Tracker For Kids in The UK

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We concluded that: