Fitbit Charge 4 Fitness TrackerWith Fitbit Charge 4, there’s no limit to how far you can go. This sleek, swimproof tracker is packed with features that help you know your workouts and your body better—like built-in GPS, Active Zone Minutes, a new exercise mode and sleep tracking. Plus, with Fitbit Pay and up to 7-day battery, you get more convenience on the go and more inspiration to reach your fitness goals.**Water resistant to 50M. Battery life varies with use and other factors; up to 5 hours with continuous GPS.Product Features:24/7 HEART RATE – Use 24/7 heart rate to better track calorie burn, optimize workouts and uncover health trends that inspire you to make moves on your health and fitness goals.RESTING HEART RATE – Wear Fitbit Charge 4 all day and night to record and reveal your resting heart rate, track heart rate trends over time, and follow your health and fitness progress.HEART RATE ZONES – Now heart rate zones are personalized based on your age and resting heart rate, so when you’re exercising you get a more accurate understanding of how hard your body’s working.WORKOUT INTENSITY MAP – IN APP ONLY – After outdoor exercise, check your workout intensity map in the Fitbit app to see your heart rate zones throughout your route and learn where you put in the most effort.ACTIVE ZONE MINUTES – With new Active Zone Minutes, your tracker buzzes when you reach your target heart rate zones during exercise, and celebrates when you earn extra minutes outside of exercise.
Measures Calories Burned And Heart Rate
Comprehensive Monitoring
Sleep Tracking
Built-in GPS
Apple Watch Series 7 (GPS + Cellular, 45mm) Blue Aluminum Case with Abyss Blue Sport Band, Regular (Renewed)
Original price was: $529.00.$28.99Current price is: $28.99.
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Fitbit Charge 4 Black Advanced Fitness Tracker
Original price was: $134.99.$22.99Current price is: $22.99.
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Reviews
13 reviews for Fitbit Charge 4 Black Advanced Fitness Tracker
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Amazon Customer –
Helps with overall health.
My second one. Works perfectly. Everything I want it provides.
Nick B –
Inaccurate in every way
I work in a hospital and have access to a ton of devices that accurately measure heart rate, in addition to simply counting my HR with a stopwatch. Upon comparison Charge4 is off by 15 to 20% about most of the time and has inexpiable spikes that claim my HR is 200% or more higher than it actually is that last minutes at a time.The pedometer picks up normal hand movements as steps. After spending 6 hours on the couch and only getting up 3 times it claims I have gone up 9 flights of stairs and walked over 7000 steps equaling over 3 miles. Even rotating your wrist to get the display to turn on can sometime count up multiple steps.The health metrics in the app are largely based upon heart rate and steps taken. When both of these are wildly inaccurate it cannot give you a clear picture of even the number of calories you have burned in a day much less anything more in depth.The sleep metrics are a cute idea but largely anecdotal and not really useful as the advice they foster from the app are the exact same suggestions you would tell every single person in the world regardless of their specifics as to what will give them the best sleep. Keep a regular bedtime, don’t work out right before bedtime, etc…The never-on-when-you-need-it display that is invisible in sunlight is not a big selling point either.And the cherry on top? Tech support’s only suggestion was to try restarting the watch followed by absolute silence and zero help or suggestions.This thing fails spectacularly.
Stephanie Becher –
Plastic pegs snap off, Band doesn’t stay on after awhile
I love Fitbits- have had two now and like the functionality of the app. I didn’t use mine for texting but was happy with the heart rate monitoring and step counting. However, after about 8 months, the plastic pegs that hold the bands on snapped off. This is the second time it has happened. First time, I bought the Fitbit at Costco and they gave me a full refund. I decided to take a leap of faith and order the same one here on Amazon (Costco was out of this version) and I liked how slender it was. Figured it was a fluke the first time, but it happened again. I contacted Fitbit customer service through the Fitbit app, and they replaced the part with a new watch face in a matter of a couple of days. I’m so happy with the quality and speed of the service and the watch face seems improved to the last one. Happy to still use my Fitbit!
S –
So close to greatness… critical flaw
So features wise, this was an awesome Fitbit. Note the “was”… I’ve had two. There is a design flaw in how the bands connect to the bit. The first one I bought lasted quite a while (maybe 3years?) and finally the plastic “anchor” that you attach the band two sheered off at the base, making it impossible to replace, glue, etc and thus you can’t attach the band. The second fitbit lasted less than two months. Same break. Horribly disappointing. I loved this product but I can’t afford to spend that much money for it to break I a critical way. I have 2 working charge 4 bits I can’t use. Wish they’d thought about the design issue.
Milo Tindle –
Works perfectly
This is one of fitbit’s best products and the only thing you need to know is the band where it attaches to the watch body is plastic and will break within a year or two. You have to decide if the cost is worth it knowing the watch will break and be unreparable within 2 years.
David Frye –
Form factor (rectangular) and e-paper display. PLEASE extend the product life of this model!!
The Fitbit Charge series is a favorite among fitness watches. Why? It’s the form factor (shape). For me and other repeat buyers, a round shape is “old timey.” A second powerful reason is that many of us LIKE the e-paper display – crisp white or gray-scale characters create a uniquely attractive presentation. Dense color displays are “eye candy” and a turn-off to many. It’s unfortunate that it appears the Charge 4 is the last of the e-paper displays – a shame and, to me, a marketing decision which I hope Fitbit’s parent company reconsiders. df
Leah –
Must be willing to buy this multiple times
Bought December 28,2024 and then it broke on December 9th,2025. Less than a year later.The band connection has snapped off and you can no longer connect a replacement band. The plastic piece that connects the 2 pieces breaks way too easily and is beyond repair. Though, this is a common issue that others have reported and I should’ve done more research.My charge HR 2 lasted me 5+ years and would’ve lasted longer if I didn’t crack the screen (due to my own actions). I have since ordered the charge HR 2 and did not order another Charge HR 4
Lynn Mc –
Love my Fitbit!
I have had 2 previous Charge 4 fitbits and liked them. They didn’t always count the steps you did.This one counts each of your steps precisely.This is the best one I have had.
Amazon Kunde –
Super Tracker, trage ich jeden Tag. Akku hält lange, bequem am Handgelenk. Preis Leistung unschlagbar
Placeholder –
NOT WORTH BUYING . VERY DISAPPOINTING THE STRAP BREAKS THEN THE STRAP HINGES BREAK SO THE STRAP CANNOT BE FIXED. IF YOU CAM FIX THE STRAP THE DISPLAY GOES AND THEN THE BATTERY DOES NOT CHARGE , ITS GREAT FOR ABOUT A YEAR.
KC Bell –
Fitbit provides poor quality bands. Mine broke after just 3 months! Searching online, many experience this issue. But what does Fitbit do to fix – zip nothing!
Richard Hui –
Amazing watch! Fits great!
Ramya Shree –
The watch works fine but the buckle n strap already tore off within a short span.. quality is very bad.