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Buying Guide

Best Fitness Tracker For Kids: Expert Reviews & Comparison Guide 2026

Independent analysis and expert recommendations to help you choose the perfect fitness tracker for kids

Our editorial team has rigorously tested and analysed 4637 fitness tracker for kids to bring you our expert recommendations. We've evaluated each product based on performance, value, features, and user satisfaction to help you make an informed decision.

Advertising disclosure
1
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
2
BIGGERFIVE Vigor 3 Kids Fitness Tracker Watch, AMOLED Screen, No App or Phone Needed, 3ATM Waterproof, Heart Rate & Sleep Monitor, Pedometer & Step Counter Smart Watch for Boys Girls Ages 5-15 (Blue)
3
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
4
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, Blue
5
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
Our Score
9.8
Exceptional
9.8
Exceptional
9.7
Exceptional
9.5
Superb
9.4
Superb
To Amazon
Model
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
BIGGERFIVE Vigor 3 Kids Fitness Tracker Watch, AMOLED Screen, No App or Phone Needed, 3ATM Waterproof, Heart Rate & Sleep Monitor, Pedometer & Step Counter Smart Watch for Boys Girls Ages 5-15 (Blue)
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
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, Blue
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
BrandGarminBIGGERFIVEBIGGERFIVEBIGGERFIVEBIGGERFIVE
Sale6% Off-25% Off--
Reviews
913 reviews
9393 reviews
2155 reviews
16240 reviews
29795 reviews
Tech Specs
Battery lifeUp to 1 yearUp to 10 daysUp to 7 daysUp to 7 days-
Battery typeUser‑replaceable batteryRechargeableRechargeable (2h recharge noted)Rechargeable (2h recharge noted)-
Water resistanceSwim‑friendly3 ATMIP68IP68-
Heart rate-Continuous heart rate24/7 heart rate24/7 heart rateReal‑time heart rate
Sleep trackingSleep trackingSleep stages + scoreSleep stagesSleep stagesSleep patterns
Step trackingSteps; estimated distancePedometer / step counterSteps, distance, caloriesSteps, distance, caloriesSteps, distance, calories
Sport modes-10 modes10+ modes10+ modes80 modes
DisplayColor displayAMOLED--1.8" HD touch
Companion appGarmin Jr app (parent features)No phone/app requiredBIGGERFIVE App (companion)BIGGERFIVE App (companion)Optional app; Android 6.0+/iOS 9.0+
Available On
Amazon Logo
Amazon Logo
Amazon Logo
Amazon Logo
Amazon Logo
Advertising disclosure
1
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
2
BIGGERFIVE Vigor 3 Kids Fitness Tracker Watch, AMOLED Screen, No App or Phone Needed, 3ATM Waterproof, Heart Rate & Sleep Monitor, Pedometer & Step Counter Smart Watch for Boys Girls Ages 5-15 (Blue)
3
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
4
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, Blue
5
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
Our Score
9.8
Exceptional
9.8
Exceptional
9.7
Exceptional
9.5
Superb
9.4
Superb
To Amazon
Model
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
BIGGERFIVE Vigor 3 Kids Fitness Tracker Watch, AMOLED Screen, No App or Phone Needed, 3ATM Waterproof, Heart Rate & Sleep Monitor, Pedometer & Step Counter Smart Watch for Boys Girls Ages 5-15 (Blue)
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
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, Blue
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
Brand
GarminBIGGERFIVEBIGGERFIVEBIGGERFIVEBIGGERFIVE
Sale
6% Off-25% Off--
Reviews
913 reviews
9393 reviews
2155 reviews
16240 reviews
29795 reviews
Tech Specs
Battery life
Up to 1 yearUp to 10 daysUp to 7 daysUp to 7 days-
Battery type
User‑replaceable batteryRechargeableRechargeable (2h recharge noted)Rechargeable (2h recharge noted)-
Water resistance
Swim‑friendly3 ATMIP68IP68-
Heart rate
-Continuous heart rate24/7 heart rate24/7 heart rateReal‑time heart rate
Sleep tracking
Sleep trackingSleep stages + scoreSleep stagesSleep stagesSleep patterns
Step tracking
Steps; estimated distancePedometer / step counterSteps, distance, caloriesSteps, distance, caloriesSteps, distance, calories
Sport modes
-10 modes10+ modes10+ modes80 modes
Display
Color displayAMOLED--1.8" HD touch
Companion app
Garmin Jr app (parent features)No phone/app requiredBIGGERFIVE App (companion)BIGGERFIVE App (companion)Optional app; Android 6.0+/iOS 9.0+
Available On
Amazon Logo
Amazon Logo
Amazon Logo
Amazon Logo
Amazon Logo
Our Research Process: We combine independent testing, expert analysis, and comprehensive user review analysis to provide unbiased recommendations.
Buying Guide

How to Buy a Kids Fitness Tracker

This short guide helps you choose a kids fitness tracker quickly. It covers what to check, the main types available, the specs that matter and where to buy. Use the practical tips to pick a device that fits your child's age, lifestyle and your expectations.

Key factors to consider

Age and size: choose a tracker sized for the intended age group and with an adjustable, comfortable strap. Battery life: some devices use replaceable coin cells that can last up to a year, others are rechargeable and last from about 7 to 10 days in normal use. Waterproofing: check the rating carefully as wording varies; some are swim-friendly while others are splash-proof only. Independence: decide if you want a watch that works without a phone or one that relies on a companion app. Parental controls and safety: look for chore and reward features, emergency contact access, and clear privacy policies. Budget: prices in the examples range from roughly £25 to £56, so set a realistic limit before you shop.

Types and categories

  • Basic activity bands - simple step counters and sleep monitors, usually low cost and easy to use.
  • App-connected kids watches - include parent apps for chores, rewards and activity challenges.
  • Standalone smartwatches - full screen, AMOLED or colour displays and can work without a phone.
  • Themed trackers - character-branded devices aimed at younger children, often with gamified content.

Important features and specifications to look for

  • Heart rate and sleep tracking - useful for health insight but check accuracy expectations for children.
  • Display type - AMOLED gives brighter colours and better visibility than basic LCDs, at a slightly higher price.
  • Waterproof rating - IP68 usually means water resistant for pools; 3ATM often indicates swim-proof capability. Verify manufacturer guidance for swimming and seawater use.
  • Battery type - coin cell with parent-replaceable option avoids daily charging; rechargeable is convenient but needs a charger and regular charging.
  • Sports modes and activity tracking - look for multiple sport modes if the child does organised activities.
  • Parental features - chore lists, reward systems, remote set-up and emergency contact widgets are handy for behaviour and safety.
  • App requirements and compatibility - confirm the companion app works with your phone and that you are happy with data and privacy practices.

Where to buy, common mistakes to avoid and expert tips

Online vs retail: buy online for price comparison, wider choice and user reviews. Buy in store if you want to try strap comfort and screen visibility first. Avoid these mistakes: do not assume waterproof means suitable for all water activities; do not rely only on marketing images for battery claims; do not buy a tracker that forces constant phone pairing if your child will not have a phone. Expert tips: choose replaceable-battery models if you want minimal charging fuss, or rechargeable if you prefer a brighter screen and more features. Prefer devices with clear parental controls and easy reward tools to keep motivation high. Check return policy and warranty, and buy from an authorised seller to ensure support. Finally, read recent user reviews for real-world battery and durability feedback before completing your purchase.

Final Thoughts

Decide first whether you want a simple pedometer, an app-driven tracker or a standalone smartwatch. Prioritise comfort, battery type and waterproofing for your child's activities. Use parental features and reputable sellers to get the best combination of safety, durability and fun.