Fitbit Ace 3 Activity-Tracker for Kids 6+ One Size, Black/Racer Red
$78.00
Price: $78.00
(as of Jan 21, 2026 15:45:18 UTC – Details)
Get kids moving and make fitness fun with Fitbit Ace 3. With activity and sleep tracking and up to 8 days of battery, the water resistant (up to 50 meters) Ace 3 motivates kids, friends and family to build healthy habits together. Fitbit is part of the Google family. Requires use of Fitbit app with compatible iPhone or Android devices. A Google account will be required.
Language : English, English, English, English, English
Product Dimensions : 3.35 x 0.8 x 4.13 inches; 0.68 ounces
Item model number : FB419BKRD
Batteries : 1 Lithium Polymer batteries required. (included)
Date First Available : March 9, 2021
Manufacturer : Fitbit Inc
ASIN : B08VKX27ZV
Best Sellers Rank: #11,150 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #66 in Activity & Fitness Trackers
Customer Reviews: 4.1 4.1 out of 5 stars (9,863) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A', ‘ready').execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics', ‘click', { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A', ‘cf').execute(function(A) { A.declarative(‘acrStarsLink-click-metrics', ‘click', { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Kids spend less time charging and more time moving with up to 8 days of battery (varies with use and other factors)
Animated clock faces grow and develop as kids move more throughout the day
All-day activity tracking shows how healthy habits add up to a healthier life
Help kids form healthy sleep habits with sleep tracking, bedtime reminders and silent alarms
Bring on the pool party cannonballs or lunchtime spills—Fitbit Ace 3 is water resistant to 50 meters
Kids earn virtual badges and fun on-screen celebrations when they reach their goals
A family account lets parents manage kid’s Ace 3 and their own watch or tracker from one easy place








Makayla –
Great Kids’ Fitbit with Minimal Issues
Overall, this kids’ Fitbit has been a great purchase! The battery life is impressive — it easily lasts over a week, even with 24-hour wear. The sleep tracking option is a nice bonus, and it’s waterproof, which gives me peace of mind when my kid forgets to take it off for showers or swimming.The only downsides are that we had to buy a new charger after the original one stopped working within a few months, and the watch only syncs the correct time when it’s regularly connected to Bluetooth.Despite those minor annoyances, it’s a fun and motivating fitness tracker for kids. I’d still recommend it!
Erin F. –
BIRTHDAY GIFT
GRANDSON LOVED IT GOOD ITEM GREAT PRICE
T. Corbin –
Absolute Trash Setup Process
**UPDATED REVIEW**Let me hopefully save you some headache. If you have an Android device, it seems that this process is a bit easier and the Fitbit app accepts a kid’s Google account; however, if you only have iOS devices these are the issues, and the resolution:1) The Ace 3 is designed for kids, but…2) It REQUIRES a kids Google account, (and now that Google owns Fitbit, there are no non-Google accounts allowed to be created on Fitbit)3) Anyone under 13 has to have a supervised Google account4) Fitbit engineers overlooked this MAJOR detail and supervised accounts don’t work on Fitbit right now5) Changing an non-kid account to a kid account (via a birthdate change) doesn’t work; Fitbit now says this type of account can’t be used.6) So, the only way it seems to make this work is to create a brand new child Google account FROM THE GOOGLE FAMILY DASHBOARD. If you don’t create it from there, it won’t work. I burned multiple Google accounts trying other ways.6) I still think the setup process makes this worth one star at best. It’s absurd that a product made for kids can’t just be setup easily. It’s also absurd that Fitbit requires all Google accounts, but hey DATA.7) The dumb part is the Charge 6 we bought for our older child was so simple to set up. Everything worked the first time and it was done in 30 seconds.**ORIGINAL REVIEW**Would give zero stars if possible.Google, get your crap together. Setting up an Ace 3 on a supervised Google account doesn’t work in the Fitbit app that you’ve now broken. And GUESS WHAT, a kid under 13 HAS TO HAVE A SUPERVISED GOOGLE ACCOUNT. Oh, I know, I’ll just use a Google account with an older birthdate on it — NOPE, NOW THE FIBIT APP SAYS THAT’S NOT A KID ACCOUNT.Fix your junk and stop ruining Christmas for kids.
Evangiline Melanson –
Nice active tracker for kids or adults looking for something basic
I like it for my son but… I had to lie about his age ( I had to put it in he was 12 instead of 13 on the app) because the app and watch are set up to only work on a parents account and once the child turns thirteen the app tries to force him to have his own account. The watch will not let it be set up on a private account for a thirteen year old. It was very inconvenient. It has held up well to being banged around and being in water. It was easy for my child to learn how to use. It does not break up the sleep tracking like their other Fitbits. It will only tell you how many hours he or she slept but it will not tell you how much of that was deep sleep, REM sleep or light sleep. I think it is a bit expensive for what it offers and the hoops you have to jump through if your child is 13 or almost 13 are no fun. I would only recommend if you can find it for sale like 50% off.
MM –
Great fitness tracker for kids
Got this for my child for a birthday gift and they loved it. It was easy to add them to my Fitbit account and it is fun to track their steps and sleep as well
Nathanael T. Heinle –
Great for use as a Potty Watch!
We were looking for a way to help remind our child to use the bathroom throughout the day while at school. This fitbit – priced at $50 is a bit more expensive than other “potty watches” but you can set up to 8 timers throughout the day – varying by day (different schedule say M-W-F) with either a sounded alarm or silent vibration. This thing worked OUTSTANDING.Not only is it 100% waterproof- but the battery life of 1.5-2 weeks is also spectacular. Every $20-$30 option we could find for a potty watch seemed to fall short in quality or functionality.The wristband (minions) seems a little flimsy and expect it to fail within about 6 months- but otherwise if we can get 1 good solid year out of this device I will call it a win.My child also really likes the step count, and I find the sleep tracking to be extremely interesting and insightful!All in all a very good well made product for a child’s entry fitbit as well use for steps, sleep tracking, and a potty watch reminder. I do recommend!
marinedr.d –
great product
My grandson was wanting one so we bought this from him and made him very happy.
TechFan –
Very good.
Sami Mujahed –
My little one just loves it.. connected it to her phone and now she has a challenge to do more sports and steps..She is a swimmer, so this water proof feature helps her see how much calories she did.She really loves it and charge it as soon as its empty. Which takes a long time to get empty and short time to charge.Thank you FITBIT 🙂 Happy Kids, Happy Parent.I do recommend this product.SSM
Katrijn Vande Riviere –
Leuk toestel maar moeilijk om te installeren
CHARFEDDINE zyed –
La batterie dure plus d’une semaine mon fils l’utilise tt les jours excellent produit
Shahin –
Funkar riktigt bra. Lätt att ladda, och lång batteritid. Bra app.