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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 1 left in stock, order soon!
Arrives
Thursday, Dec 25
Recently Viewed
Color: Black/Racer Red
Features
- 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 spillsFitbit 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 kids Ace 3 and their own watch or tracker from one easy place
Description
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.
Operating System: android
Memory Storage Capacity: 6400 MB
Special Feature: Water resistant
Battery Capacity: 8 Amp Hours
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Battery Cell Composition: Lithium Ion
GPS: Built-in GPS
Shape: Rectangular
Screen Size: 0.96
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
Best Sellers Rank: #6,654 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #47 in Activity & Fitness Trackers
#47 in Activity & Fitness Trackers:
Customer Reviews: 4.1 4.1 out of 5 stars (9,822)
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Dec 25
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Blue Astro Green
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!
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Reviewed in the United States on July 10, 2025 by Makayla
Color: Black/Racer Red
*April 2022 update at the end* We’ve had this Fitbit Ace 3 since launch, and I’d like to point out a few of the upgrades when compared to the Fitbit Ace 2: - More rounded / Curved shape, seems like it would feel more comfortable to wear. The part to tuck in the strap is also better, strap doesn’t come out as often if your kid had that issue - Better screen - the animations and display look better - Longer battery life. It is now 8 days instead of 6, and the battery noticeably lasts much longer - New animated faces (a few), with apparently Minion licensed content and straps coming soon - No more one button on the left. Both left and right side have these two touch sensors which can be used for going back to the menu or activating the water lock - Waterproofing has been improved to a depth of 50m, but if your kid is going for a swim, they’ll have to turn on the water lock (long press of both sensors, and then double tap screen when it asks you to) - Still connects seamlessly with the Fitbit app and kids view mode etc. - BIGGEST UPGRADE: Fitbit has since the last 2-3 years moved to bad charging connectors in my opinion, the old Alta 2 ones were the best. The Ace 2 and Inspire use magnetic chargers made of plastic but they don’t hold well. With the Ace 3, they’ve added two clips that hold the charger in place. Not sure if other new fitbit chargers have this, but this is a big upgrade from the old Ace 2 charger which was not easy to hold in place All in all, neat upgrades to the best kids tracker out there, at the same price point as before! July 2021 update: as promised, Fitbit has updated the app to include new Minion animated faces! Kid loves it, thanks! :) April 2022 update: alright guys, the Fitbit Ace 3 that we have is going strong. Through sports, getting wet, and the daily wear and tear of a 6 year old. But CHECK THIS.. the battery life is just INCREDIBLE. This Ace 3 holds charge for 3-4 weeks easily. Easily. I’m curious to hear other peoples experience as we have a day one device, but I’m just blown away. They said the battery life was upgraded to 8 days, but going almost a month without charge is just amazing. Well done, Fitbit. Well done.
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Reviewed in the United States on March 22, 2021 by MK
Color: Blue Astro Green
**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 account 4) Fitbit engineers overlooked this MAJOR detail and supervised accounts don't work on Fitbit right now 5) 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.
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Reviewed in the United States on December 25, 2023 by T. Corbin
Color: Black/Racer Red
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.
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Reviewed in the United States on July 23, 2022 by Evangiline Melanson