Product Title : 

Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included)



  • Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your route
  • With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise
  • Use 24x7 heart rate to track resting heart rate & better measure calorie burn. Syncing to mobile devices requires Bluetooth LE and internet connection. Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later
  • See your SpO2 nightly average and range on wrist, and view trends over the past week in the Fitbit app (SpO2 is not available in all markets. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose)
  • Track your skin temperature each night to see how it varies from your personal baseline (Not available in all markets. Only available in the Fitbit app and only displays variation. Not intended for medical purposes)
  • Track workouts in real-time with 20+ goal-based exercise modes. It’s also swimproof and water resistant to 50 Meters, so you can track swims, wear in the shower and more
  • Multi-day battery lasts up to 7 days and up to 5 hours when using built-in GPS (varies with use & other factors). Track sleep stages & review your in-app Sleep Score for an easy way to see how well you slept.

Fitbit Charge 4 Fitness and Activity Tracker with Built 2


Kat Moore
5.0 out of 5 stars A great upgrade from a charge 2 but some things to note...
Reviewed in the United States on April 21, 2020
Color: Black/BlackEdition: RegularVerified Purchase
Got this after my charge 2 died and wow is it and upgrade I really love it so far! Fair warning though on some things I didn’t realize: you need Spotify premium to use any of the Spotify features at all which was kind of a bummer. And according to their website if you use the GPS feature the Fitbit battery only lasts 5 hours. So you have to be careful to turn GPS only on and off when you need it when you’re exercising and not just leave it on to auto recognize which is a little annoying but not a huge deal. Also a few features require that you allow them to run in the background for them to “work properly” I don’t like to have things do that to try and preserve my phone battery so I turned off those permissions but left the others on and so far I haven’t had any other problems because my Fitbit still syncs throughout the day and I think can still get data that way. My boyfriend loves the sleep mode feature that turns off notifications and screen wake so when I toss and turn at night I don’t accidentally blind him with my watch screen if it goes off. see more.

Andrew G.
3.0 out of 5 stars Pretty good, with some gripes. Buy it on sale.
Reviewed in the United States on April 23, 2020
Color: Black/BlackEdition: RegularVerified Purchase

The app is amazing, that goes without saying. The quality of the band is nice, but it's a bit hefty, made bulkier by the textured diamond pattern in the band. The clasp is a bit cumbersome as well, and feels a bit like cheap plastic. I'll reserve my judgments on that until it breaks. Doesn't inspire confidence though.

The watch itself seems to be very accurate, it's comfortable, and has some nice options. The pressure button on the side is a little hard to press, I wish you could change the settings for the sensitivity. When pressing, it requires you to stabilize the other side with your thumb or else you'll just push the watch causing it to slide toward your hand. The UI on the app is clean and simple, although I wish it allowed to customization. I don't need all the settings and stats it comes with, and many you cannot remove from the UI. This makes you scroll more than you'll probably want to to get to the features you like. If we could at least re-order them, that'd allow for quicker navigation.

My final note is battery life. FitBit claims 7 days of battery life. Today is Thursday at 8:41pm. I'm at 70%. I gave it a full charge all night Tuesday into Wednesday morning. Within an hour of pulling it off the charger it was down by 5%. At the current rate, it'll likely be dead by Sunday which is closer to 4 days. Keep in mind, since I charged it fully, I have NOT exercised. It's quarantine and I'm lazy. I can imagine the battery would only last 2-3 days with moderate to heavy frequent exercise.
That's my review. Don't got much else to say. It's a decent watch, but I'd wait for it to go on sale. see more
Jonathan Arrazola
1.0 out of 5 stars Wont turn on during set up.
Reviewed in the United States on April 18, 2020
Color: Black/BlackEdition: RegularVerified Purchase