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⌚ Elevate your wellness game with Fitbit Sense 2 – where smart meets unstoppable!
The Fitbit Sense 2 is a sleek, water-resistant smartwatch designed for professionals seeking comprehensive health tracking and smart features. It offers over 6 days of battery life, built-in GPS, advanced health sensors including ECG and stress detection, plus seamless compatibility with iOS and Android devices. With personalized sleep and activity insights, plus on-wrist call and notification support, it empowers you to optimize your wellness and stay connected effortlessly.















| ASIN | B0B6WQ9RG7 |
| Age Range Description | Adult |
| Band Colour | White |
| Band Material Type | Fluoroelastomer |
| Battery Average Life | 6 days |
| Battery Capacity | 1 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 17 Minute |
| Battery capacity | 1 Milliamp Hours |
| Best Sellers Rank | 1,551 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 15 in Activity Trackers 52 in Smartwatches |
| Box Contents | Smartwatch, charger |
| Brand Name | Fitbit |
| Case Material Type | Aluminium |
| Clasp Type | Single Pusher Foldover Clasp |
| Closure Type | Clasp, Buckle |
| Colour | Lunar White/Platinum Aluminium |
| Communication Feature | GPS |
| Compatible Devices | Smartphone |
| Compatible Phone Models | iOS 13 or higher running iPhones, Android 8 or higher running smartphones |
| Connectivity Technology | GPS, Bluetooth |
| Connectivity technology | GPS , Bluetooth |
| Controller Type | Touchscreen, Physical buttons/dials |
| Country of Origin | Vietnam |
| Customer Reviews | 4.2 out of 5 stars 5,025 Reviews |
| Display Type | AMOLED |
| GPS Geotagging Functionality | Built-in GPS |
| Global Trade Identification Number | 00810038858371 |
| Human Interface Input | Microphone |
| Item Dimensions | 40 x 40 x 11 millimetres |
| Item Dimensions D x W x H | 16D x 9W x 8H centimetres |
| Item Type Name | Smartwatch |
| Item Weight | 26 Grams |
| Manufacturer | Fitbit |
| Maximum Display Brightness | 500 Nit |
| Memory Storage Capacity | 6400 MB |
| Memory storage capacity | 6400 MB |
| Metrics Measured | ECG, cEDA, SpO2, GPS |
| Model Name | Sense 2,lunar White/Platinum |
| Model Number | FB521SRWT |
| Operating System | IOS13+; Android 8+ |
| Operating system | IOS13+; Android 8+ |
| Product Features | Heart Rate Monitor, GPS, Stress Tracking, Water Resistant, Oxymeter (SpO2), Sleep Monitor, Activity Tracker, Notifications, Contactless Payment |
| Resolution | 360 x 360 |
| Screen Size | 1.34 Inches |
| Shape | Square |
| Special feature | Heart Rate Monitor, GPS, Stress Tracking, Water Resistant, Oxymeter (SpO2), Sleep Monitor, Activity Tracker, Notifications, Contactless Payment Special feature Heart Rate Monitor, GPS, Stress Tracking, Water Resistant, Oxymeter (SpO2), Sleep Monitor, Activity Tracker, Notifications, Contactless Payment See more |
| Sport Type | Fitness |
| Style Name | casual |
| Supported Application | Phone |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| UPC | 810038858371 |
| Warranty Type | Limited |
| Water Resistance Depth | 50 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | ip67 |
| Wearable Computer Type | Smart Watch |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |
| Wireless communication standard | Bluetooth |
S**L
Best health watch on the market
Best health metrics measurement on the market.. So simple to use and provide a very easy to understand yet comprehensive dashboard and metrics including sleep. Can sync with Renpho scale, and calorie tracking apps like my fitness pal . Absolutely love it !
N**N
Works well, especially the new features.
This was bought to replace a Fitbit Sense 1 which had broken. The Sense 1 was always a little finicky. Sometimes it wouldn't charge, sometimes it'd only charge halfway. The sense 1's footstep detector was wildly inaccurate. About the only thing it did well was the heartbeat thing, which was quite accurate. The Sense 2 fixes a lot of these issues, and makes for a faster, smoother experience. The Sense 1 would lag occasionally when swiping, but the Sense 2 doesn't. It's a better watch all round, I think. We both, originally, paid for the subscription, but it just didn't seem to give us anything worthwhile. Apps like Zombies Run! give you fun, cool things to do to get fit. Other apps give you recipes, or fitness ideas, or reminders etc... I just feel that the fitbit ecosystem has stagnated a little and they're just selling smartwatches/fitness trackers without evolving the experience. So, there's one thing that's the same with both, and it's still a disappointment, the app: The thing that annoyed me about the Sense 1 was that it constantly had a "disconnected from phone" icon on the screen, despite the phone sitting RIGHT THERE. What's the point of having a smart watch that can control the phone, if it only works if the app is loaded and showing on the phone's screen? I can count on one finger the number of times that I've had the Fitbit app loaded, and someone's tried to call me, and I've been able to answer it using the smart watch. The sense 2 does the same. Despite having the App on the phone, it still doesn't detect the phone unless the app is loaded. And sometimes you'll load the app, and it'll take ages for it sync with the watch, despite the watch being in the active bluetooth devices list. I know Bluetooth is a bit flakey, and not all devices are equal when it comes to supporting different profiles, but I would have thought the one thing the watch was supposed to do (exchange information with the app) would have been sorted. The watch was for my wife, and she's had no problems with it so far. She likes the features, but doesn't use much of the additional functionality. She occasionally loads the fitbit app to sync the data and see how she's been doing. but, if I'm honest, I think the App needs a major overhaul. She shouldn't have to take the watch off, and lie it next to the phone for ten minutes to sync for her to know how many steps she's taken, or for the most useful information to be buried under a dropdown, which is in a tab, under a graph, which is about four scrolls down. The app has most of what you need, but it could do with a little of a redesign I think... Perhaps find a way to let people configure their dashboard, both in the app, and on the notifications, or widgets on the home screen.
R**E
Google Fitbit Sense 2 Health and Fitness Smartwatch
The Sense 2 stands out as a health-first smartwatch. It's clearly built with wellness in mind rather than trying to mimic a phone on your wrist. From tracking heart rate and sleep to managing stress, it offers tools that feel useful rather than gimmicky. What I liked: Detailed Health Metrics: Heart rate, ECG, skin temperature, and stress detection are built in. The stress tracking, in particular, is easy to overlook but quietly helpful when you're trying to identify patterns in your day. Sleep Tracking: Sleep Score and sleep stage breakdowns give a clear picture of your rest. If you're trying to improve sleep habits, this adds useful context. Excellent Battery Life: It easily runs nearly a week on one charge with regular use. That's with 24/7 tracking and the always-on display disabled. Comfortable and Discreet: It's lightweight, slim, and doesn't scream "smartwatch," which is a plus. Comfortable enough to forget you're wearing it. What could be better: Smartwatch Features Are Limited: You won't find app support, music controls, or anything close to what Apple or Samsung offers in that department. Notifications are basic. Premium Paywall: Some of the insights-especially more detailed analytics and guided programs-are locked behind Fitbit Premium. That means another subscription if you want the full package. Final Thoughts: Fitbit Sense 2 isn't trying to be everything-it's focused on wellness, and it does that well. If health tracking is your main priority, this is a strong choice. Just be ready to pay for Fitbit Premium if you want the extra data.
J**N
Great and useful device
Love the device
N**L
Great for what I need from a tracker
I upgraded to sense 2 from a 7 year old Charge 2 and I have to say I love it. It does everything I personally need from a fitness tracker. Battery life lasts 6 days most of the time but can be less if using your gps. Some of the advanced features with the free trial of Fitbit premium drain the battery. I did have one glitch where the battery drained over night but I removed sp02 tracking and daily readiness, and it then went back to normal at 6 days. The ECG function is good and gps worked well when I tested it on a 9 mile walk. You have to physically turn on gps in the exercise settings which is fine, otherwise it drains the battery a bit. Yes it takes a minute or so to kick in and you can tell once it’s on as the little gps arrow is red whilst kicking in and white once on. Steps are accurate, as are the floor counting. I can take calls on my watch (once I linked it to sense 2 calls on Bluetooth) which is great as you never miss a call if you’ve left your phone in another room etc Obviously you can’t make calls or texts from it as it’s not linked to a phone contract, but I find it useful to be able to take the calls and the sound on it was fine. I personally love the Fitbit app, and the way the calorie tracking and targets work. It is glitchy occasionally but what app isn’t? That really doesn’t faze me as the data is on your watch and always syncs again once the app is fixed as long as you don’t reboot your watch during that time. In 7 years of using Fitbit I have only ever had a handful of issues with the app. The ability to change clock faces is good but it would be nice if there were more that showed battery life as a lot of them don’t. Overall, a good tracker but if you are a massive fitness fanatic who wants a lot more of the advance features some have like fall detection, quicker gps, ability to make calls etc then you may want to opt for another brand of Watch. For me though, the sense 2 is perfect for what I need.
J**N
Don’t waste your money on this
At first glance, this watch seems like a solid purchase — easy to set up, sleek design, and smooth performance. But that initial impression fades very quickly. After using it for over a year, I can confidently say: it’s just not worth your money. Within days, the so-called “premium” rim around the edge started peeling off, making the whole thing look cheap. Syncing with the app is an exercise in frustration — painfully slow, and more often than not, it just doesn’t work at all. The battery life? Abysmal. A few months in, and you’ll be lucky to get a full day out of it. But the real kicker is the charging process. It’s incredibly unreliable. You’ll feel the vibration and see the screen light up like it’s charging — only to come back later and find out it never charged at all. Of course, that ruins your daily stats, since you haven’t been wearing it. And if the watch is completely dead? Good luck. The charging issue gets even worse. I’ve lost count of how many days I’ve ended up not wearing it because I thought it was charging when it wasn’t. This product is poorly designed, unreliable, and frankly a waste of money. I won’t be buying it again — and I strongly suggest you don’t either.
T**R
Fitbit sense 2
I intend just a brief review as I am new to the type of digital media that I am reviewing. My requirement was for a heart monitor app that comes with a Fitbit sense 2. To begin with I must point out that I have never owned a smart phone or smart devices. The product on the Fitbit site did not seem to specify the requirement of a smart phone. The Amazon product info for the item was low down and in small print where it was stated that you will require a smart phone but I missed it . The phone was £219.00 and a few days later became 179.00. I realised that the Fitbit would not work at all without a smart phone. Kayz who sold the item answered my question by stating all smart watches require a smart phone - thanks. This caused the purchase of a 1200.00 smart phone. As a complete newbie to using a smart phone I must therefore state that the Fitbit app on an apple phone was very user friendly and I figured it out a (fit) bit at a time. I am well into 1400.00 at this point and find upon trying to install the AF app (heart app) that if I have had health problems then I must cancel the app install and not use it. Thanks. Where was that in the info. To cut a long story short - the Fitbit works great and works really great with my iphone BUT I still had to buy a Kardia device (something else that needs a phone but at least they tell you) in order to get what I originally wanted. £1550.00 later and I am all set. Now the fitbit can apparently warn me of possible heath situations that I am interested in via notifications which is great but if I really needed this kit and was short of money then I am not sure of how good that would make me feel. Were in a new age now where a £1200 phone and a £200.00 watch DON'T come with instructions. One relies on big socialism to save the corporations from tedious time wasting on silly things like instructions. I knew how to configure wireless networks the hard way in 2002 so it came as no surprise to get the phone hooked into the internet and get the 2 devices `paired` up and the smart watch downloading so it could work but how is a pensioner expected to setup a smartphone and email to setup a smart watch. Ok if they have a smart phone already then modern software is very clever at prompting the user but this equipment should come with a health warning. I have blue tooth savy wifi mates that haven't got on with this device but I have to say I like it , I can and have spoken to this ALEXIA on the watch and find the watch strap (odd as it is) to be secure and comfortable. Once you have downloaded loaded the info to make the watch work you will be able to use some of its benefits independently. The watch seems to have no hard off ability and I am unsure of the battery life that when it ends will render it useless no doubt.
H**L
Overpriced Smart(ish) Tracker - Buy something else
Quick Summary - The features you are getting with this watch are NOT worth the price point. You can’t even control your music or download 3rd party apps. The health tracking features are available on other watches for less. Also Fitbit premium means that its arguably best selling point of in depth health stats becomes locked behind a monthly paywall after the trial. If you want an exclusive fitness tracker and don’t care much about ‘smart’ features (eg Google Maps), if you really want a Fitbit (getting worse because of their google ownership trying to sell Pixel watches instead) get the Charge 5 (£100 and pretty much the same features for half the price), or a Garmin (better at tracking exercises/health metrics). If you care about smart features as well as health tracking, (for Android) get a Pixel Watch (2nd hand around £150)/Galaxy Watch 4/5 or (for Apple) get the Apple Watch SE (2nd Gen) for slightly more money. It is a shame but there’s no really argument or selling point for this watch, as the price does it no favours. You can either get pretty much the same for less money, or spend slightly more and get a whole lot more. Apart from being comfy to wear and looking good on my wrist, it was just an overpriced tracker. (I returned it) In Depth Review- I really did want to like this watch. From what I’ve seen Google really stripped it to the absolute barebones that it can be, to the point where there’s no real reason to this watch over a Charge 5 for half the price, for example. The Heart rate tracker seemingly worked fine, I don’t have anything to compare it with but readings didn’t seem too unrealistic/inconsistent enough to be considered inaccurate. GPS was definitely hit or miss, 1 run the watch had recorded the route going all over the place, whereas the next recorded run (doing the same route) was perfectly tracked. The sleep tracker was interesting, something I checked each morning for the few days that I had the watch on, but I could see that feature over time be checked less and less. As for the other features, I pretty much forgot that they existed, as personally those stats didn’t interest me as much as I thought they would. Also take into account, if you’re still using this watch after the 6 month trial, the in-depth readings will be locked away from you unless you pay monthly for the premium subscription. The battery life was very good. I wore it for 6 days, with a recorded run, walk or weightlifting session pretty much every day. It ended up with about 20% left when I took it off to return it. There are no 3rd party apps, Google Maps being the only non Fitbit one. Maps worked ok, but was pretty unclear at times. It would for some reason remove how far you have until the next direction, so you could either be walking in a straight line for 20 minutes or 2 minutes and have no way of telling which, without looking at your phone (kind of eliminates the point of the watch). Also, in my experience, it didn’t let me know that I had arrived so I ended up walking past my destination a couple of times. You don’t actually see a map like on other smartwatches too. I think it is too unreliable for me to properly trust for regular usage. Watch faces are ok, there are a lot of them but some need to be purchased. On the main watch face, the weather would often be just displayed as “—°” even after syncing to my phone numerous times. Occasionally notifications would stop coming through. You can either have the display as ‘always on’ or activated by a button, which was sometimes inconvenient if I wanted to just check the time whilst something was in my other hand. The watch was comfy to wear and would be easy to forget about once on your wrist. It didn’t irritate my skin at all. Overall, it is a good watch and I was going to keep it, but after talking about watches with a friend I ended up looking more on Amazon and just finding out how lacklustre it is for the price. I returned it to get an Apple Watch, which will have all the fitness features I used on this watch and more because of 3rd party app support. If that does not interest you, save your money and get a Charge or a Garmin.
H**.
Uyku takip için ideal.
Öncelikle, bu ürün tam anlamıyla bir akıllı saat değil. Bir fitness takip cihazı diyebiliriz. Uyku takibi için fiyatına göre en doğru verileri veren akıllı saatlerden biri. Veri doğruluğu açısından bir tık üstü Apple Watchların yeni modelleri. Daha iyisi de yok zaten. Ne yazık ki nabız hızlandığında tıbbi cihazlar arasında gözle görülür bir fark mevcut, bu saat normal nabzı gayet iyi ölçse de nabız hızlandığında veriler sapıtmaya başlıyor. Ayrıca adım sayar verileri de gerçekle birebir uyuşmuyor, örneğin sırtınızı kaşımak için elinizi kaldırdığınızda bunu adım olarak sayabiliyor. Oturduğum yerde memleketten gelen fındıkları kırarken 5 bin adım hedefinize ulaştınız diye bildirim gelmesi can sıkıcı, evden bile çıkmamıştım o gün. Koşuya veya yürüyüşe çıktığınızda harita üzerinden gittiğiniz yerleri, hangi yerde ne kadar nabız değişimi olduğunu, oradaki hızınızı vs. gösteriyor. Yüzücü iseniz yüzdüğünüz mesafeyi, havuzun uzunluğunu, kaç tur yüzdüğünüzü gösteriyor. Telefon uygulamasında premium üyelik mevcut maalesef. Ürünle birlikte 6 ay premium hediyesi geliyor, ancak premium bitince aylık 200 TL civarında bir ödeme isteniyor. Bazı verileriniz premium olmadan görünmüyor. Verilerinizi görebilmek için aldığınız bir üründe verilerinizi görmek için bir ödeme duvarına toslamak gerçekten can sıkıcı. Saate neredeyse hiçbir uygulama kurulamıyor, fitbit'in izin verdiği gereksiz iki üç app mevcut. Spotify, youtube music vs. kurulamıyor. Google asistan özelliği bu saatte yok. Eğer kalp ritmi ve adım sayar sizin için geri plandaysa, kaliteli uyku takip verileri için almayı düşünürseniz alabilirsiniz. Bu kadar olumsuz özellik saymama rağmen ürünün şıklığı, uyku takip başarısı (uyku apnesi için takip ediyorum) ve muadillerine nazaran ucuzluğu sebebiyle iade etmedim. Bütçeyi bir tık arttırmak istiyorsanız Samsung Watch 6 önerebilirim, zira Samsung Watch 6 tıpkı bu saat gibi birebir doğru veriler sunamasa da en azından uygulama kurma özelliği mevcut. Umarım gönlünüzce bir saat bulabilirsiniz, iyi alışverişler :)
A**R
Fitbit sense 2
Good deal at $260+. Got it as a replacement for my Sense 1.
C**R
Excellent
Excellent quality, fast shipping.
M**B
Ottimo, funziona alla grande e anche la batteria non è tra le peggiori.
Sono entusiasta di condividere la mia esperienza con il Fitbit Sense 2, un compagno eccezionale per il mio percorso di benessere. Dopo averlo utilizzato per diverse settimane, posso affermare con sicurezza che questo smartwatch è un investimento eccellente per chiunque desideri monitorare attentamente la propria salute e il proprio fitness. **Design elegante e confortevole:** Il Fitbit Sense 2 è un gioiello in termini di design. Con il suo elegante quadrante rotondo, cinturino confortevole e display touchscreen nitido, è una delizia da indossare. Il mio modello preferito è la versione nera, che si adatta bene a qualsiasi stile. **Monitoraggio avanzato della salute:** Ciò che distingue davvero il Sense 2 è il suo monitoraggio avanzato della salute. Con la misurazione della temperatura cutanea, il rilevamento dell'ossigenazione del sangue, il monitoraggio del sonno di alta qualità e persino l'ECG, questo smartwatch è un punto di riferimento per il monitoraggio della salute. Ho trovato particolarmente utile la funzione di rilevamento dello stress, che mi ha aiutato a identificare i momenti di tensione nella mia giornata e a prendere misure per rilassarmi. **App Fitbit completa:** L'app Fitbit è estremamente intuitiva e completa. Mi permette di visualizzare facilmente i dati raccolti dal mio Sense 2, impostare obiettivi di allenamento, tenere traccia della mia dieta e monitorare il mio peso. Inoltre, la comunità Fitbit offre un supporto eccezionale e ispirazione per il raggiungimento dei miei obiettivi. **Durata della batteria accettabile** Dura fino a 3 giorni se usato senza fare attività fisica. In conclusione, il Fitbit Sense 2 è un compagno essenziale per chiunque sia seriamente interessato al proprio benessere. Il suo design elegante, il monitoraggio avanzato della salute e l'app completa lo rendono un'opzione eccezionale. Lo consiglio vivamente a chiunque voglia migliorare il proprio stile di vita e ottenere un maggiore controllo sulla propria salute.
R**A
Diseño elegante y cómodo
Llevo cerca de un mes utilizando el Fitbit y lo primero que me ha sorprendido es la duración de la batería. Lo llevo las 24 horas del día conectado al Smartphone y la duración media supera los 6 días de uso ininterrumpido. Su punto débil sigue siendo la sincronización entre la App y el reloj, que falla habitualmente y el elevado precio que tiene, en comparación a otros modelos con similares características. Hecho en falta que no controle la presión sanguínea, cuando es capaz de detectar la saturación de oxígeno y la temperatura cutánea mientras descansas. En definitiva, creo que su precio es elevado para las prestaciones que presenta (para sacar el máximo potencial, es necesario tener la cuenta premium, la cual considero excesivamente cara), aunque la marca Fitbit es garantía de calidad y durabilidad.
Trustpilot
2 days ago
1 month ago