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FREE 30-day refund/replacement
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.
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Availability:
Only 5 left in stock, order soon!
Arrives
Sunday, Oct 19
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: #4,298 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #25 in Activity & Fitness Trackers
#25 in Activity & Fitness Trackers:
Customer Reviews: 4.1 4.1 out of 5 stars 9,783 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Oct 19
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: Blue Astro Green
We have had this kids activity tracker and watch for 4 years now. No troubles at all with it. It stays on the arm and goes into pools, oceans and showers all the time. The band can be changed out and that is the only thing we do with it. The kiddo loves changing out the band to go with whatever outfit she wears. Well worth the price we paid and also great tool to track activity levels and time.
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Reviewed in the United States on August 13, 2025 by Ducky
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
Color: Black/Racer Red
Hey, fellow kiddos! Let me spill the beans on the Fitbit Ace 3 – the cool gadget that's basically the superhero of fitness trackers for us mini-humans. **Awesome Design:** First off, this thing looks rad! It's not just a watch; it's like having a mini robot buddy on your wrist. The colors are as popping as a bag of Skittles, and the design is so comfy that it's like wearing a high-tech friendship bracelet. **Move it, Move it:** The Fitbit Ace 3 is like your personal cheerleader, but way less embarrassing. It keeps track of all your epic moves – from playground cartwheels to jumping on the bed. You earn virtual badges, and let me tell you, collecting those is as exciting as finding an extra cookie in your lunchbox. **Splash and Dash:** The best part? It's waterproof! Yup, you heard it right. You can wear it in the rain, in the pool, or when you're playing "Let's see who can make the biggest splash." It's like having a buddy that's up for any water adventure. **Sleepy Time Magic:** It even tracks your sleep! It's like a sleep wizard, telling you if you had a legendary night's sleep or if you need to work on your snooze game. Parents might not get it, but we know how important sleep is for ninja-level energy. **Challenge Accepted:** The Fitbit Ace 3 loves challenges. It's like having a mini game console on your wrist, but instead of playing Mario, you're challenging yourself to be the most active ninja in the neighborhood. Step challenges, active minutes – it's all about beating your own records. **Parental High-Five:** Parents love it too because they can keep an eye on how much we're moving and grooving. It's like having a secret agent on your wrist that reports back to HQ (don't worry, it's just your parents making sure you're being a healthy superhero). **Final Verdict:** If you want a fitness sidekick that's as cool as a snow day, the Fitbit Ace 3 is where it's at. It turns getting active into a game, and let's face it – who doesn't love a good game? It's like having a high-five for your wrist, reminding you that being healthy is as awesome as a surprise weekend without homework. Get ready to unleash your inner fitness superhero!
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Reviewed in the United States on November 17, 2023 by P.