10 Best Fitness Tracker For Kids in The UK

Last updated on 12/07/2025

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Fitbit Ace 3 Activity Tracker for Kids with Animated Clock Faces, Up to 8 days battery life & water resistant up to 50 m ,Black/Red

30% OffFree Shipping

Why We Love It

Long-lasting battery life.
Fun, engaging animations.
Swim-friendly design.

Main Highlights

🔋 BATTERY LIFE: Up to 8 days of battery
📱 Compatibility: Compatible with iOS 12.2 or higher & Android OS 7.0 or higher
⏰ Animated Clock Faces: Fitbit Ace 3 makes fitness fun with animated clock face characters that change and grow as kids make progress toward their goal throughout the day
⚽️ All day activity tracking: Fitbit Ace 3 tracks all-day steps, and Active Minutes show how every move, skip and jump adds up to a healthier, more active life
😴 Sleep tracking: Help kids form healthy sleep habits with sleep tracking, bedtime reminders and silent alarms; Fitbit Ace 3 lets you know if kids are getting the rest they need since good sleep habits play a big role in their health
💦 Water resistant to 50m: Since Fitbit Ace 3 is water resistant, spills and splashes don’t stand a chance and kids can wear it in the pool and ocean
👩‍👩‍👧‍👦 Family Account & Parent View: Through Parent View in the family account, parents can see their kids’ activity and approve their connections

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.

Google Fitbit Inspire 3 Activity Tracker with 6-months Premium Membership Included, up to 10 days battery life and Daily Readiness Score, Black/Midnight Zen

29% OffFree Shipping

Why We Love It

Enhances daily wellness.
Encourages healthier habits.
Stays connected effortlessly.

Main Highlights

Up to 10 days of battery and Water-resistant up to 50m
Compatible with iOS 15 or higher & Android OS 9.0 or higher
Move more: 24/7 heart rate, Daily Readiness Score, Active Zone Minutes, all-day activity tracking, 20+ exercise modes, automatic exercise tracking and reminders to move
Stress less: always-on wellness tracking, daily Stress Management Score, mindfulness sessions, relax breathing sessions, irregular heart rhythm notifications, SpO2, menstrual health tracking, resting heart rate and high/low heart rate notifications
Sleep better: automatic sleep tracking, personalized Sleep Profile, daily detailed Sleep Score, smart wake vibrating alarm, sleep mode
Comfortably connected day and night: calls, texts & smartphone app notifications, color touchscreen with customizable clock faces, Compatible with iOS 15 or higher & Android OS 9.0 or higher, super lightweight and water resistant to 50 meters, up to 10 day battery life
Includes 6-month Premium membership for deeper insights & guidance, exclusive workouts, mindfulness sessions and more

Health Fitness Tracker with 24/7 Heart Rate, Blood Oxygen, Blood Pressure, Sleep Tracker, Step Counter, 5ATM Waterproof Activity Trackers and Smart Watches for Women Men Kids (S & L Bands Included)

11% OffFree Shipping

Why We Love It

Health monitoring features beloved.
Durable in extreme conditions.
Convenient for important alerts.

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 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, Black

25% OffFree Shipping

Why We Love It

Earn Virtual Medals For Motivation.
Supports Various Sports Modes.
Monitors Your Child's Sleep.

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.

GRV Pedometer Watch Fitness Watch No Bluetooth/App/Phone Required,Fitness Tracker with Step Counter Calories Counter Sleep Monitor for Walking Running

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Why We Love It

No app needed for tracking.
User-friendly for all ages.
Accurate fitness data monitoring.

Main Highlights

【No App & Phone Required Pedometer Watch】This pedometer watch doesn't require any App Bluetooth or smartphone connections! It's as simple to use as a regular watch but smarter. Perfect for seniors, kids, and anyone looking for an easy fitness tracker without the hassle of smartphone setups.
【User-Friendly Design】The watch can be easily operated by the touch button, allowing all settings and operations to be easily completed. Its convenient operation is especially friendly for both elderly and children!
【Accurately Track Your Fitness Data】This smart watch accurately monitors and records your steps, calories, distance, and sleep time, providing you with a clearer understanding of each exercise's data!
【Long Battery Life】This fitness tracker charged through the built-in USB, enabling quick charging with just a gentle connect. It only takes 2 hours to fully charge and can last up to 5 days on a single charge.
【Enhanced Waterproof Performance】This activity tracker meets the IP68 waterproof standard, ensuring no worry wearing in daily life, allowing you to fully enjoy various activities, but not suitable for diving, taking a shower, sea water or sauna.
【Perfect Present for Parents and Kids】This pedometer watch makes a wonderful gift for both seniors and kids. It is simple, works without a mobile phone, and is very light and comfortable to wear.

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)

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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.

BIGGERFIVE Vigor 2 Fitness Tracker Watch for Kids Girls Boys Ages 5-12, Activity Tracker, Pedometer, Heart Rate Sleep Monitor, IP68 Waterproof Calorie Step Counter Watch, Great Kids Gift,Lilac

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Why We Love It

Comfortable and durable design.
Promotes active, healthy lifestyle.
Useful for sleep tracking.

Main Highlights

[MORE COMFORTABLE & DURABLE] The softer and skin-friendly liquid silicone strap is specially designed for children ages 5-12, for a more comfortable fit；Newly upgraded charging interface, safer and more durable, up to 7 days of battery life with 2 hours of fast charging.
[ALL-DAY ACTIVITY TRACKING & IP68 SWIMMING WATERPROOF] This 24-hour activity tracker automatically counts your children's steps, distance, and calories burned and activity minutes. It supports 10+ activity modes: Walking, Running, Cycling, Dancing, Basketball, Football, Tennis, Climbing, Workout, and more. It is rated IP68 waterproof so your kids can wear it during water activities and while enjoying pool time.
[HEART RATE, SLEEP TRACKING & SILENT ALARM CLOCK] The fitness tracker can automatically monitor your kids' daily real-time heart rate, track how well they sleep at night, and provide data about their sleep trends through the night in the app. The silent alarm clock can wake them up without disturbing others.
[WIDE COMPATIBILITY & EASY TO USE] Compatible with most Android 6.0+ and iOS 9.0+ smartphones; Upgraded to a more child-friendly interface, more easy-to-operate watch interface interaction; The family account makes it easier for parents to manage multiple kids trackers.
[PERFECT GIFT IDEAS FOR KIDS] Designed for children, BIGGERFIVE brand kids fitness trackers encourage kids to build good workout habits and be more healthy by enrouraging them to obtain virtual badges when they reach their excercise goals. Perfect gift ideas for kids' Birthday, Christmas and all other occasions.

Kids Smart Watch for Girls,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+ (Purple)

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Why We Love It

Bright, customizable touch display.
Tracks health, fitness activities.
Supports multiple languages.

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, IP68 Waterproof, Sleep Tracker, Calorie Step Counter, 5 Puzzle Games with/without APP for Girls Boys Teens 5-16, Nylon

Free 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.

8.7

Excellent

We scanned 511 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 Fitbit, BIGGERFIVE, Amzhero, GRV, Slothcloud, 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 2556 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 Fitbit Ace 3 Activity Tracker for Kids with Animated Clock Faces, Up to 8 days battery life & water resistant up to 50 m ,Black/Red. We love many things about this product by Fitbit. What sets it apart from the competition is Long-lasting battery life, Fun, engaging animations, Swim-friendly design.
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, Sleep Tracker, IP68 Waterproof, Calorie Step Counter, Puzzle Games with/without APP for Girls Boys Teens 5-16, Blue by BIGGERFIVE 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 Fitbit Ace 3 Activity Tracker for Kids with Animated Clock Faces, Up to 8 days battery life & water resistant up to 50 m ,Black/Redat Fitbit with a 30% 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 scanned 511 products

We concluded that: