







🚀 Elevate your fitness game—track, train, and thrive without limits!
The Fitbit Charge 4 is a sleek, advanced fitness tracker featuring built-in GPS, swim-proof durability, and up to 7 days of battery life. It offers continuous heart rate monitoring, Active Zone Minutes for workout intensity, and detailed sleep tracking with a personalized Sleep Score. Compatible with iOS 15+ and Android 9.0+, it keeps you connected with smart notifications and Fitbit Pay, making it the ultimate companion for the active professional.














| ASIN | B084CT21P8 |
| Age Range Description | Youth |
| Band Colour | Black |
| Band Material Type | Silicone |
| Battery Average Life | 7 days |
| Battery Capacity | 7 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 7 days |
| Battery capacity | 7 Milliamp Hours |
| Battery cell composition | Lithium Ion |
| Best Sellers Rank | 97,481 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 295 in Activity Trackers |
| Box Contents | Activity Tracker |
| Brand Name | Fitbit |
| Case Material Type | Stainless Steel |
| Clasp Type | Tang Buckle |
| Closure Type | Buckle |
| Colour | Granite Reflective Woven/Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS 15 or higher and Android OS 9.0 or higher |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Siri |
| Customer Reviews | 4.5 out of 5 stars 47,410 Reviews |
| Display Type | AMOLED |
| GPS Geotagging Functionality | Built-in GPS |
| Human Interface Input | Touchscreen |
| Item Dimensions | 23 x 12 x 36 millimetres |
| Item Type Name | Activity Tracker |
| Item Weight | 30 Grams |
| Manufacturer | Fitbit |
| Maximum Display Brightness | 1000 Nit |
| Metrics Measured | Heart Rate, Sleep Duration, Distance |
| Model Name | Charge 4 SE |
| Model Number | FB417BKGY |
| Operating System | IOS13+; Android 8+ |
| Operating system | IOS13+; Android 8+ |
| Product Features | Calendaring, Calorie Tracker, GPS, Heart rate monitor, Notifications, Sleep monitor |
| Product Warranty | 2 year manufacturer |
| Resolution | 160 x 80 |
| Screen Size | 0.96 Inches |
| Shape | Rectangular |
| Sim Card Size | eSIM |
| Special feature | Calendaring , Calorie Tracker, GPS, Heart rate monitor, Notifications, Sleep monitor |
| Sport Type | Fitness, Swimming |
| Style Name | Charge 4 |
| Supported Application | Calendar, Fitness Tracker, GPS, Heart Rate Monitor, Messages, Phone, Sleep Monitor, Weather |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adult |
| Unit Count | 1.0 count |
| Warranty Type | Lifetime |
| Water Resistance Depth | 50 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP68 |
| Wearable Computer Type | Activity Tracker |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |
| Wireless communication standard | Bluetooth |
J**D
Nice upgrade from Charge 2
Got this for fact was waterproof and had built in GPS. Initial set up frustrating appeared to be stuck on set up screen, but what I realised was to return to home screen, (watch face) you need to gently hold either side of the screen – this is also the key for everything else – if you are in one of the menus just hold both sides of the screen and you go back one level in the menu – finally getting back to the main screen Easy setup, multiple display options, easy to use, GPS appears to be as accurate as apps such as ‘Map My Walk’ using the phones GPS If using the auto detect activity the GPS does not activate, (so if you want a map, which is why I got it), you do need to manually select the activity you are doing Display easy to read, depending on watch face and your eyesight, even in sunlight, rapid menus and intuitive once you get over the initial ‘how do I get back to the watch face’ GENTLY HOLD BOTH SIDES OF THE SCREEN. Battery after two days is down to 56%, but that is probably down to me playing with it constantly finding all the bits and pieces it can do. Overall delighted with it, (so much so just bought the wife one as well) Nice neat device, has extra apps, including the contactless payment which was a doddle to set up, that I may or may not use in the future but does everything I hoped and would recommend Have now had the charge 4 for a few weeks, still delighted with it, but have noticed a couple of things, if using the GPS for long periods (like a 4 hour walk), this does seem to drain the battery quickly and needs charging every couple of days Also a couple of times after starting the exercise going the tracking has switched off, but I think this was due to me having the strap too tight so when putting my hand into a press up position, I was touching both sides of the screen, and it was going back to main screen.
A**R
Great Fitness Tracker / Smart Watch
In one phrase: this is a great fitness tracker / smart watch. Battery: I have it for more than 2 weeks now and the battery life is very good. It all depends on the GPS of course, but if you run 30 minutes a day with GPS on you will have it lasting 3 days. It always takes a little less than 2 hours to charge, it doesn't matter if you use a super charger or your computer USB port. UPDATE: Now you can use "Dynamics GPS", meaning it'll use your phone GPS when available, saving battery and increasing precision. GPS: the accuracy is okay, it syncs quite fast, you can stretch while waiting. But I don't think you gain much from it. Apart from a bit more accurate distance measurement and fancy looking maps (route) in the app, there's no gain. I recommend you turn it off and increase your battery life and you still are gonna get all the metrics that really matter. Heart Rate Monitor: my readings are very accurate! Some people have reviewed this Fitbit and warned about its inaccuracy, but I think they are either wrong or have some issue with their "setup". I have thick veins, easy to read, maybe that helps. I don't even wear it tight. Features: I don't use the Spotify app, that gladly can be removed, and I noticed that by enabling the notifications (at least with Android) I get all the smart actions for each notification, that includes media control over YouTube and Google play music that I happen to use. That also means quick replies on WhatsApp and alikes. Fitbit Pay: works nice with AIB in Ireland, no need to have your phone nearby, and the PIN unlocks it for 30 minutes or so, so you don't have to enter it all the time. I'm currently trying to add a second card from TransferWise and having difficulties so I'm in contact with 2nd level support to try and make it work, it looks like it's gonna work eventually. UPDATE: TransferWise card added and working! Waterproof: I wore it all the time, under the rain, washing hands, taking shower, soap everywhere, under hot water in a filled bathtub. So far so good. I'll try it in sea water soon to have a final view on this subject. Finishing: the straps really don't connect that we'll to the body leaving a gap that fills with dust every day. Once a day I take it off and clean it, not a big deal to me, but that's really a downside, even if a small one.
A**S
Good, although a few shortcomings to note
I am a first time FitBit user, and have had my Rosewood Charge 4 for about a month now. I am overall very happy with my purchase. First, the positives: - it has made a real difference to my motivation to exercise and meditate more regularly. N.B. I use it for cardio circuits and strength training. I have not yet tested the GPS properly on a run. - heart rate analysis in general is great, especially during exercise. The different heart rate zones (fat burn, cardio, peak) are useful indicators. I cannot however comment on how accurate this is, as I have not used it in conjunction with a heart rate monitor. - sleep analysis is great. The sleep score and bedtime reminders have made me a lot more strict about getting to bed on time. - SmartWake alarm feature has made a real difference to how well rested I feel when I wake up. I no longer rely on my phone alarm, and instead wake up gently at my lightest stage of sleep which is great. - Battery life is amazing. Once charge lasts me at least 5-7 days. - No issues with syncing so far (although a different story when it comes to text/WhatsApp notifications - see below). The negatives: - The screen display sometimes doesn't light up when you tilt the watch towards you. It often takes a more exaggerated gesture / button press to light it up. - Text/WhatsApp notifications are EXTREMELY temperamental. Multiple times a week I find that my FitBit has not synced to display my phone notifications, and find a message on the app stating "Notification service not running. A phone restart is required to re-enable notifications on your tracker". What's even more frustrating is that a restart doesn't resolve this issue. Instead, the only solution appears to be going into my phone settings, clearing data for the FitBit app, and then logging into the app again and enabling notifications. I think this is a wider issue with FitBit compatibility with Android phones, and is not Charge 4-specific. I am currently using a Huawei P20 Pro. - The Spotify feature occasionally disconnects and unlikely to be of much use. It's more like having a remote on your wrist - useful if you're playing Spotify from your phone without your phone nearby and want to pause/skip a track. The only real use I've found for this feature is when I'm listening to music in the shower! - The Charge 4's strap is quite bulky on smaller wrists and the rubber is pretty inflexible (see picture). My wrists are very small - around 5ish inches - and this means there is a lot of space left when I tighten the strap as far as it can go (for me, the third hole from the smallest). I bought a woven strap separately to try and remedy this, and it does look better but hasn't completely resolved the issue due to the width of the device and strap connectors. If this likely to bother you, get a different FitBit watch. - The rubber on the Charge 4 strap does wear slightly with use (giving it a grey-ish tint). None of the above are dealbreakers though. If you're a first time fitness tracker user you are likely to still be very happy with your purchase!
R**B
How was the item? Fitbit Charge 4 Advanced Fitness Tracker with GPS
⭐️⭐️⭐️⭐️⭐️ Accurate, Reliable, and Great Battery Life! The Fitbit Charge 4 is a fantastic fitness tracker. The built-in GPS is accurate for runs and walks, and the swim tracking works perfectly. It’s lightweight, comfortable, and easy to wear all day. The battery lasts up to a week, even with regular workouts, and the sleep tracking provides really useful insights. Syncs seamlessly with the Fitbit app for detailed stats and motivation. A great all-round tracker — reliable, feature-packed, and excellent value for money.Accurate, Reliable, and Great Battery Life! The Fitbit Charge 4 is a fantastic fitness tracker. The built-in GPS is accurate for runs and walks, and the swim tracking works perfectly. It’s lightweight, comfortable, and easy to wear all day. The battery lasts up to a week, even with regular workouts, and the sleep tracking provides really useful insights. Syncs seamlessly with the Fitbit app for detailed stats and motivation. A great all-round tracker — reliable, feature-packed, and excellent value for money.
P**E
Great product!
After getting into running I wanted to get a Fitbit so that I could track my runs and also to encourage me to be more active. As always with Amazon reviews, I almost got put off buying this but I am so glad I did. I haven't had any issues whatsoever and I think it's a great product. To the reviewers saying there's no instructions: the box tells you to download the app and it's all easy peasy from there! I also found the manual online and this had everything I needed to know. The app is simple to use and there is loads on there to explore. I've tried the sleep tracking for a few nights now and it's interesting but I don't think I will do it every night as it isn't comfortable to wear while sleeping. So far the battery life has been good, but like others have said, it will go down quicker when using the GPS, which if it's only used for a run now and then, I don't see the issue. I have been able to sync my Spotify account easily and this is a great function of the watch as I can pause or skip songs on there rather than get my phone out or fiddle with my headphones. I have also set up the Fitbit pay with my Santander account - be aware that this function does not cover all banks so if this is a decider for you then research the list of banks before purchasing. I haven't tried using my Fitbit pay yet but I am sure it works great just like everything else. Overall I would recommend this product to anyone and ignore any bad reviews!
L**S
disaappointing battery life but does what it says
I have previously had a Fitbit Blaze, but I was disappointed with its battery life and eventually the battery stopped holding charge, so I was interested to see how the new Fitbit Charge 4 compared. Overall, I would say it is an improvement in most areas (although some are not as good as the Blaze)! It keeps its charge much better (although it is new) and is good for day to day wear but the battery life with GPS is disappointing. It is supposed to be up to 7 days normal wear and 5 hours GPS. It all depends on how active you are. I probably get 4 days normal (but I work outdoors and rack up 10,000 steps by 10am!) for GPS I would say make sure its fully charged first and you might make 5 hours. To begin with it was not straight forward to set up and like all fitbits it is not good if your internet bandwidth is low especially as all support is online! There is no way to manually set the time (which I have found an issue when travelling through different time zones in the past) It took a while to get the charger working (no smiley face) initially but I think it is just because the battery was so low to start with. The charging cable is uselessly short especially as a lot of the set up needs to be done whilst plugged in which resulted in my crouched on the floor under the side table! The charger is a much better design than previous models as you do not have to remove the strap and it has a clip to lock the watch into place, which is great once you get it working! Over the course of the first week there were daily firmware updates which were a bit annoying but I do now have the advertised functions ( I didn’t use Spotify, payment or any of the premium features and I did miss being able to control the music stored on my phone ( I am old fashioned that way)). The itself strap comes with 2 alternative sizes which is useful but only one has the band to keep the free end in which is a bit of an oversight. the strap itself is very plastic-y and not very comfortable. A softer silicone material would be nicer, but I suspect this will be more hardwearing. The strap attachment mechanism is much stronger than previous models. The display is black and white and it is very difficult to read in direct sunlight especially as the default display time is so low (the auto hibernate kicks in after about 5 secs which isn’t enough time for my eyes to adjust to the display) and there is no always on option or ability to delay the auto hibernate. The wake action of raising your wrist needs to be done quite firmly and often fails. (It was a pain when trying to take the photo! The screen itself is an ok size and the swipe/ button functionality take a bit to get used to. I found all the buzzing a little annoying and difficult to stop an activity once it was in progress as it would keep going through a loop of pausing then telling me to press to finish but when I did I got the DND/sleep mode options. I think it just takes a bit of getting used to. So on to some of the functionality... Workouts The fitbit has inbuilt GPS so there is no need to take your phone and do not get the same connectivity loss. It auto detects workouts and you can track six activities on the device, but you can edit in the app/dashboard for example I can change the outdoor activity to horseback riding but it didn’t do anything to modify the stats which would have been nice. If you do autodetect though GPS is not turned on, so you won’t get a map. Various activities log different data but I was quite happy with the heartrate zones, energy burned distance & elevation. GPS does drain the battery As well as counting steps you record Active Zone Minutes which basically ranks your activity so that a higher intensity workout in the cardio heart rate zone is worth double a lower intensity work out with heart rate in the fat burning zone. It has a daily target of 22 an average of 7 days divided by 150 minutes of weekly exercise. You can customize all your targets in the app. Sleep & O2- Fitbit gives you an overall score for your sleep, showing awake, light REM and deep sleep periods. I tend to find the less deep sleep I get the more tired I am, and it all seems to be at the start of the night! It estimated my O2 fluctuations, but I am not sure for me this is especially useful, I think the just like to play with the sensor! Female tracking and food and water intake I just can’t be bothered with as its too much data input for me and my fluid comes not just from water! I did try to use it to log alcohol consumption though as it made me think about how much and when! Notifications can be enabled for calls and text messages, calendar updates but not WhatsApp messages ???? Overall it does what it says on the tin and has a reasonably easy interface. Battery life and screen needs improvement but am I happy? YES!
C**Y
Feature-Packed Fitness Tracker – Reliable, Lightweight, and Great Battery Life
The Fitbit Charge 4 is an excellent all-round fitness tracker that balances sleek design with powerful features. It’s lightweight, comfortable to wear all day, and the strap feels durable without being bulky. The built-in GPS is a huge plus, letting you track runs, walks, or bike rides accurately without needing your phone. The tracker covers everything you’d expect—heart rate monitoring, step counting, calorie burn, sleep tracking, and swim tracking (yes, it’s waterproof!). The 7-day battery life easily lives up to expectations, even with regular use, and charging is quick and straightforward. I particularly like the sleep insights and Active Zone Minutes, which help keep workouts more focused. The Fitbit app is easy to use, with clear graphs, daily summaries, and motivation to keep moving. Notifications from your phone (calls, texts, and app alerts) also sync smoothly to your wrist, which is handy without being overwhelming. ✅ What’s in the Box: Fitbit Charge 4 tracker, two strap sizes, and charging cable. 💡 Best For: Anyone who wants a reliable, mid-range fitness tracker with GPS and strong health features without paying smartwatch prices. If you’re looking for something that’s accurate, long-lasting, and packed with useful fitness tools, the Fitbit Charge 4 is a solid choice and excellent value for money.
J**D
Okay but with some flaws
I have had my Charge 4 for about 16 months now, I never do a review straight away, i can never really see the point, as a long term review is far more accurate. The watch itself has some good and some bad First of all price wise for a branded product it is very good big thumbs up! It seems quite accurate, as in the amount of steps for the same walk come out as more or less the same (walking the dog) so estimating the amount of steps and which particular route to take becomes easier, so that is a big thumbs up! People complained about the battery life, I found it to be quite good so thumbs up! The app itself on both IOS and android is okay, the Fitbit website is quite good, so thumbs up! I never really needed the smart watch side of it, so I cant comment, never really saw the point in trying to read a text on the tiny display of a watch. The bad is the display is not very bright at all, it has 3 settings normal (not that bright) Dim (can barely see it) Auto (does whatever it likes and you still cant see it) thumbs down! The connection to phones is really hit and miss sometimes it works sometimes it doesn't, this was on a P30 pro and then an iPhone 13, both good phones so a watch issue, thumbs down! My watch scratched quite easily, which was disappointing, thumbs down! The whole look at the great GPS system is also very poor, this was one of the reasons i chose the Charge 4, its not great, you still have to carry your phone with you, and when using this it drains your phones battery, not as first advertised, a thumbs down! But my main issue is the strap you get with the watch, the whole strap system is frankly rubbish! they constantly break (official ones) also the actual mechanism to hold any strap onto the watch is really really poor, so a massive thumbs down to that! It has its good features, but for me the bad outweighs the good I would not recommend the Fitbit Charge 4 to anybody!
A**K
Read this before purchasing and stressing out..
I thought I did my research, wow there was one aspect I missed, the setup. After struggling to get the Fitbit to work, I dug deep into the web and found out that when you start to set up your new Charge 4 up you will have to update the firmware. Unlike most new devices though this can take a up to 48 hours to come through 😲. Now that it the Charge 4 is updated it works a treat, the GPS function is brilliant. So don’t get too stressed it is a good fitness tracker.
T**Y
Caro, ma ottimo
Aggiorno la recensione dopo che Fitbit ha finalmente rilasciato l'aggiornamento con la funzione Smart Wake (sveglia nel momento di sonno leggero), quindi posso dare tranquillamente 5 stelle. Evoluzione della linea Charge che guadagna il GPS e diverse funzionalità software, non starò a fare una recensione delle caratteristiche perché ne trovate a milioni online. Vi dirò quello che va e che non va. E' un Fitbit, quindi è caro, ma il design è molto curato e non sfigura quando dovete uscire la sera. Rispetto a Charge 2 e 3: la cassa è in plastica, probabilmente necessario per la ricezione GPS. Purtroppo questo significa che la sensazione è di prodotto un po' meno premium, dall'altra parte se ne apprezza la maggiore leggerezza, al polso è estremamente comodo. E' in definitiva un prodotto ben fatto e curato sotto tutti gli aspetti. Vari miglioramenti rispetto ai predecessori sia hardware che software. Con il Pixel, nessun problema di accoppiamento o disconnessioni. Funziona perfettamente, le nuove caratteristiche rispetto alle serie precedenti lo portano quasi alla perfezione per quanto riguarda le feature di una smart band "generalista", quindi non dedicata all'allenamento sportivo agonistico, ma a un po' di fitness, ricezione notifiche ecc, per chi non vuole le dimensioni di uno smartwatch. Durata della batteria di qualche giorno, rispetta le aspettative per il tipo di prodotto. Lo consiglio a chi vuole un tracker che funzioni bene e che sia anche un accessorio bello da indossare. Si accoppia bene con un orologio tradizionale (orologio a sinistra e tracker a destra).
N**A
Fully Satisfied. Highly recomended
Reliable, charged perfect
V**V
Memnuniyet
Urunun kurulumu basit, icerisinden cikan bir boy buyuk kordon cok iyi dusunulmus. Ekrani Alta serisine gore oldukca buyuk geldi. -Hizli ve sorunsuz siparis icin tesekkurler. -Ilk kurulum sirasinda guncelleme yuzunden, kurulum ekraninda biraz bekliyorsunuz. Kurulumdan sonra guncelleme dusunulebilir.(~10dk)
S**.
Great fitbit
Love the charge 4. Does everything that i need it to do. To date i have had 4 charge 4s so far. I am rough on them ( farm life with horses)and they usually last a couple of years to 3+ years. But the last 2 that i got didn't last cause the connector where the bands attach broke off. I tried to glue them but didn't work. Wish bands were interchangeable with a charge 5 though, so wouldn't have to buy a whole new set of bands if upgrade to a newer model.
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