Fitbit Sense Advanced Smartwatch with Tools for Heart Health…
$189.00
Meet Fitbit Sense—the advanced smartwatch that helps you tune in to your body and guides you toward better health. Assess your heart for atrial fibrillation (Afib) with a compatible ECG app right on your wrist, track & manage stress, better understand your sleep quality and even keep an eye on patterns in your skin temperature. Plus, Sense unlocks a 6-month free trial of personalized guidance and advanced insights from Fitbit Premium for new users. Fitbit is part of the Google family. Requires use of Fitbit app with compatible iPhone or Android devices. A Google account will be required. Is Discontinued By Manufacturer : No Product Dimensions : 1.59 x 1.59 x 0.49 inches; 1.1 ounces Item model number : FB512BKBK Department : Unisex-Adult Batteries : 1 Lithium Polymer batteries required. (included) Date First Available : August 25, 2020 Manufacturer : Fitbit Inc ASIN : B08DFCWVZ4
EDA Scan app detects electrodermal activity which may indicate your body’s response to stress and a built-in skin temperature sensor logs yours each night so you can see when it varies.Band Size : Small : Fits wrist 140mm – 180mm in circumference. Large : Fits wrist 180mm – 220mm in circumference Assess your heart for atrial fibrillation –a heart rhythm irregularity- and easily share results with your doctor (The Fitbit ECG app is only available in select countries. Not intended for use by people under 22 years old.Operating temperature: 14° to 113°F An on-wrist skin temperature sensor tracks yours each night so you can see how it varies. You can also see your nightly blood oxygen levels at a glance with our collection of clock faces.Maximum operating altitude: 28,000ft High & low heart rate notifications alert you if yours seems above or below your average Battery lasts 6 plus days plus, fast charging gives you a full day’s charge in just 12 minutes (Varies with use and other factors; up to 12 hours with continuous GPS) Use built-in GPS during runs, hikes, rides and more to see pace & distance without your phone and use the built-in mic and speaker to take Bluetooth calls hands-free when your phone is nearby (Requires more frequent charging) Use Google Assistant or Amazon Alexa Built-in to get quick news, set bedtime reminders and alarms, control your smart home devices and more just by speaking to your watch
Price: $189.00 (as of May 06, 2025 19:02:22 UTC – Details)
Customers say
Customers praise the smartwatch’s sleep tracking features and consider it an excellent device. The battery life receives mixed feedback – while some report it runs for about 8 days, others find it terrible. Functionality, heart rate monitoring, value for money, and ease of use also get mixed reviews, with some saying everything works great while others report it stops working easily and the heart rate sensor is inaccurate. The charging ability is particularly problematic, with many customers reporting issues with the charging style and slow charging errors.
8 reviews for Fitbit Sense Advanced Smartwatch with Tools for Heart Health…
Charles J. –
Great health trending data/benefits.
This is a great product. Great looking. Fits the wrists comfortably and seamlessly. Outstanding reliability.Mostly though, very impressed with the health data I receive when paired with my Apple phone. Step count, heart rate sleep patterns, etc.Having this data supports me in increasing my medical knowledge of my body and supports a creating a healthier lifestyle.I would highly recommend this watch.
Deb H. –
Great battery life, love the bright easy to read screen
I am a long time Fitbit user. I upgraded from the Fitbit Charge 3 because I couldn’t read the Charge 3 screen at all in the sunlight. The Fitbit Sense is easy to read even when it’s sunny out. Great battery life & charges super fast. Sleep mode is very helpful. I really wish that you could fully read text messages & emails on the Sense. Also wish you could see your full reply when responding to someone via voice to text. Sense isn’t useful/helpful when you have to use your phone to see full text messages, emails or your voice response to make sure there aren’t any wrong words in your voice to text before sending. The purpose of those features are so you wouldn’t have to rely on using your phone. Also, sometimes when you press on a notification Sense will occasionally clear other unopened notifications. It doesn’t happen often but is frustrating when it does. In exercise mode I wish there was an option to see the current time in addition to elapsed time, distance, pace & heartrate all on the same screen. It would be helpful when doing 5k races or training for a race. I do like the current option of seeing those on separate screens too but would prefer the ease of seeing all on one screen. Golf mode has shut itself off a few times when I’ve used it. That’s disappointing when you’re trying to keep track of total play time & total steps specifically during the hours of playing golf. Wish I could get the “Golfpad” app on my Sense then I could use my Sense instead of the app on my phone. Also wish there were more free clocks similar to Spectrum that showed current time, date, steps, sleep & heartrate on one screen with a nice picture background that was easy to read. Overall I love the Fitbit Sense. I plan to try more of the other features such as music soon & hope I can listen while keeping the walking exercise mode running during a race without a problem. Hopefully I’ll be able to switch back & forth quickly & easily. I bought the screen protector for my Sense & have been using it since. So glad I did as it’s protected the screen many times from being bumped or accidentally dropped when trying to put it on. Wish Fitbit would sell the screen protectors. Would also like more color options for the sport bands including an all black band and breathing holes. The sport bands & Sense are very comfortable to wear even while sleeping. I recommend the sport brands if you play a lot of sports or are very active to ensure it stays on. I love the square face of the Sense. It’s large enough & bright enough to read indoors & outdoors yet delicate looking for a small wrist. One last thing, wish Fitbit gave a better way to sign up for the extra extended coverage. The option popped up on the app on my phone but unfortunately while I was at work & didn’t have the credit card on me I would have used to pay for the coverage. So unfortunately I didn’t get a chance to sign up for that. The Sense is rather pricey so worth waiting until it’s on sale.
Joel M. Campbell –
Nice watch with some minor flaws
Overall I have liked the Sense watch. However, depending on what features are most important to you there are some annoying things.- Sleep Tracking: This was one feature I was really excited about. It does not work that well without intervention. The issue is that it never detects the correct times for sleep. For example, I may go to sleep at 11PM but the watch will log 3AM. The interesting thing is that if you go into the app and correct the sleep start and end times the information in the app will actually update correctly (as in heart rate, SpO2, etc). Starting sleep tracking from the app itself seemed to not really work at all. The few times I tried that option only basic information was collected.- Heart Rate Tracking: I have found this to be mostly accurate. Some online reviews have noted issues with the heart rate tracking. I have never really seen it be wildly inaccurate like some others.- Battery Life: I usually get 2 days or so and I wear it almost 24/7. I use the GPS when walking almost daily too which may impact the battery life some.- Mobile App: The app is OK. I can’t really note any major issues- Hardware: The screen is bright enough for use in sunlight. The capacitive touch ‘button’ can be a bit difficult at times (as in not responsive) but it mostly works.- Other: There are occasionally some connectivity issues with Bluetooth that cause issues. For example the ECG feature just stopped working while other features had no issues. I read some troubleshooting forums and the suggestion was to turn off Bluetooth on the phone and turn it back on. That seemed to correct the issue while simply moving out of range of the phone (causing the Bluetooth connection to drop) did not. A few times it seemed that data sync was not working but a restart of the watch itself corrected that.Overall I have been pleased with the watch and now that I know workarounds for for the few issues that I have encountered it rarely gives me any issues. It has helped me get in better shape which was the goal.
Anna –
Superbra, uppgraderade från en FitBit Charge 3 och är mycket nöjd!
Kindle Customer –
Even if the watch has always been hard to charge and important features with only with the (expensive) premium subscription, I was features satisfied with the watch. I have also used the charger that comes with the watch; but before you know it the watch doesn’t charge anymore. Not citar to me if it’s the device or the charger; no matter how much I try the charge doesn’t happen. As warranty is so short, you shoot with a watch that you can’t use pretty soon. Really feel scammed 😪
Simple –
I have been using it for few weeksBattery capacity is not an issue, as due to fast charge it gets charged from 20 to 100 per cent in one hourSleep tracking is goodHeart rate is accurate except during exercise where it is accurate 98 %,Health Metrics is a good feature – spo2, hrv, respiratory rate are very good health indicators. ECG, breathing exercises and EDA scan are goodStress Management and readiness score are based on algorithms and may differ from person to person and under different set of conditions – not convinced about the accuracy of these two measurements. One has to accept or reject these intelligently and ony approximately
Ahmed R. –
Seller delivered it in timeBut my opinion, it’s best to buy it for looks not functionalities, fitbit apps are bad and lag and doesn’t do most health metrics.
Sophie –
Brilliant little gadget, I love it. I upgraded from the Charge HR 3 in September upon release and it’s been brill – I haven’t had much chance to use some features yet though like the fitbit pay element.The sleep tracking is great, gives me an insight into why I feel the way I do in the morning, and the “true” sleep i.e. I’ll wake up thinking I’ve had 8 hours but when I check my fitbit it’s only 6hrs 30mins or something because of waking up throughout the night.The mobile app is great and has everything I personally need, my only wish is that the food library was as comprehensive as My Fitness Pal and that it would show what your weekly calorie deficit is, but it’s not too bad because it syns automatically with MFP so I’m not making double the work when logging foods.The battery life is brilliant, I only charge it about once a week (with always on display turned off) so I barely have to think about charging it compared to my partner’s Samsung Galaxy Watch 2 which he has to charge every single night without fail. It also charges really quickly and the charger connection is so much better than before, it’s just magnetic rather than fiddling around with the connection.Love the fact you can change the bands too.One of the most motivating aspects of this watch for me is the built in exercises to choose from which then accurately records whatever you’re doing e.g. An outside walk (tracks GPS along with heart rate, distance, steps, active minutes based on your heart rate) or treadmill (everything listed before but GPS), workouts, weights, swimming etc. I especially love the new active zone minutes, you get single zone minutes in fat burn zone and double minutes in cardio or peak heart rate zones so I find it very easy to meet the minimum 150 active minutes per week, it’s very motivating to carry on when you’re smashing the zone minutes out!Sometimes, and I mean it’s only happened about 4 times since I’ve had it (since September) it kind of crashes in that the screen is black and won’t wake up, then I just have to hold the side button down for about 10 seconds and that sorts it out. Other than that it’s worked brilliantly for me.For anyone wondering I believe the only difference between this and the cheaper Versa 3 is that it also has a stress EDA scan and ECG function. They’re interesting insights but I’m not really sure what I can do with that information really, it seems to be more about health as well as fitness. But if you’re just into fitness then I would just get the Versa 3 because I’m pretty sure all other functions are identical.Overall I really enjoy this product, and use it every day. I don’t think I could go back to working out/doing my daily steps without one now!
Charles J. –
Great health trending data/benefits.
This is a great product. Great looking. Fits the wrists comfortably and seamlessly. Outstanding reliability.Mostly though, very impressed with the health data I receive when paired with my Apple phone. Step count, heart rate sleep patterns, etc.Having this data supports me in increasing my medical knowledge of my body and supports a creating a healthier lifestyle.I would highly recommend this watch.
Deb H. –
Great battery life, love the bright easy to read screen
I am a long time Fitbit user. I upgraded from the Fitbit Charge 3 because I couldn’t read the Charge 3 screen at all in the sunlight. The Fitbit Sense is easy to read even when it’s sunny out. Great battery life & charges super fast. Sleep mode is very helpful. I really wish that you could fully read text messages & emails on the Sense. Also wish you could see your full reply when responding to someone via voice to text. Sense isn’t useful/helpful when you have to use your phone to see full text messages, emails or your voice response to make sure there aren’t any wrong words in your voice to text before sending. The purpose of those features are so you wouldn’t have to rely on using your phone. Also, sometimes when you press on a notification Sense will occasionally clear other unopened notifications. It doesn’t happen often but is frustrating when it does. In exercise mode I wish there was an option to see the current time in addition to elapsed time, distance, pace & heartrate all on the same screen. It would be helpful when doing 5k races or training for a race. I do like the current option of seeing those on separate screens too but would prefer the ease of seeing all on one screen. Golf mode has shut itself off a few times when I’ve used it. That’s disappointing when you’re trying to keep track of total play time & total steps specifically during the hours of playing golf. Wish I could get the “Golfpad” app on my Sense then I could use my Sense instead of the app on my phone. Also wish there were more free clocks similar to Spectrum that showed current time, date, steps, sleep & heartrate on one screen with a nice picture background that was easy to read. Overall I love the Fitbit Sense. I plan to try more of the other features such as music soon & hope I can listen while keeping the walking exercise mode running during a race without a problem. Hopefully I’ll be able to switch back & forth quickly & easily. I bought the screen protector for my Sense & have been using it since. So glad I did as it’s protected the screen many times from being bumped or accidentally dropped when trying to put it on. Wish Fitbit would sell the screen protectors. Would also like more color options for the sport bands including an all black band and breathing holes. The sport bands & Sense are very comfortable to wear even while sleeping. I recommend the sport brands if you play a lot of sports or are very active to ensure it stays on. I love the square face of the Sense. It’s large enough & bright enough to read indoors & outdoors yet delicate looking for a small wrist. One last thing, wish Fitbit gave a better way to sign up for the extra extended coverage. The option popped up on the app on my phone but unfortunately while I was at work & didn’t have the credit card on me I would have used to pay for the coverage. So unfortunately I didn’t get a chance to sign up for that. The Sense is rather pricey so worth waiting until it’s on sale.
Joel M. Campbell –
Nice watch with some minor flaws
Overall I have liked the Sense watch. However, depending on what features are most important to you there are some annoying things.- Sleep Tracking: This was one feature I was really excited about. It does not work that well without intervention. The issue is that it never detects the correct times for sleep. For example, I may go to sleep at 11PM but the watch will log 3AM. The interesting thing is that if you go into the app and correct the sleep start and end times the information in the app will actually update correctly (as in heart rate, SpO2, etc). Starting sleep tracking from the app itself seemed to not really work at all. The few times I tried that option only basic information was collected.- Heart Rate Tracking: I have found this to be mostly accurate. Some online reviews have noted issues with the heart rate tracking. I have never really seen it be wildly inaccurate like some others.- Battery Life: I usually get 2 days or so and I wear it almost 24/7. I use the GPS when walking almost daily too which may impact the battery life some.- Mobile App: The app is OK. I can’t really note any major issues- Hardware: The screen is bright enough for use in sunlight. The capacitive touch ‘button’ can be a bit difficult at times (as in not responsive) but it mostly works.- Other: There are occasionally some connectivity issues with Bluetooth that cause issues. For example the ECG feature just stopped working while other features had no issues. I read some troubleshooting forums and the suggestion was to turn off Bluetooth on the phone and turn it back on. That seemed to correct the issue while simply moving out of range of the phone (causing the Bluetooth connection to drop) did not. A few times it seemed that data sync was not working but a restart of the watch itself corrected that.Overall I have been pleased with the watch and now that I know workarounds for for the few issues that I have encountered it rarely gives me any issues. It has helped me get in better shape which was the goal.
Anna –
Superbra, uppgraderade från en FitBit Charge 3 och är mycket nöjd!
Kindle Customer –
Even if the watch has always been hard to charge and important features with only with the (expensive) premium subscription, I was features satisfied with the watch. I have also used the charger that comes with the watch; but before you know it the watch doesn’t charge anymore. Not citar to me if it’s the device or the charger; no matter how much I try the charge doesn’t happen. As warranty is so short, you shoot with a watch that you can’t use pretty soon. Really feel scammed 😪
Simple –
I have been using it for few weeksBattery capacity is not an issue, as due to fast charge it gets charged from 20 to 100 per cent in one hourSleep tracking is goodHeart rate is accurate except during exercise where it is accurate 98 %,Health Metrics is a good feature – spo2, hrv, respiratory rate are very good health indicators. ECG, breathing exercises and EDA scan are goodStress Management and readiness score are based on algorithms and may differ from person to person and under different set of conditions – not convinced about the accuracy of these two measurements. One has to accept or reject these intelligently and ony approximately
Ahmed R. –
Seller delivered it in timeBut my opinion, it’s best to buy it for looks not functionalities, fitbit apps are bad and lag and doesn’t do most health metrics.
Sophie –
Brilliant little gadget, I love it. I upgraded from the Charge HR 3 in September upon release and it’s been brill – I haven’t had much chance to use some features yet though like the fitbit pay element.The sleep tracking is great, gives me an insight into why I feel the way I do in the morning, and the “true” sleep i.e. I’ll wake up thinking I’ve had 8 hours but when I check my fitbit it’s only 6hrs 30mins or something because of waking up throughout the night.The mobile app is great and has everything I personally need, my only wish is that the food library was as comprehensive as My Fitness Pal and that it would show what your weekly calorie deficit is, but it’s not too bad because it syns automatically with MFP so I’m not making double the work when logging foods.The battery life is brilliant, I only charge it about once a week (with always on display turned off) so I barely have to think about charging it compared to my partner’s Samsung Galaxy Watch 2 which he has to charge every single night without fail. It also charges really quickly and the charger connection is so much better than before, it’s just magnetic rather than fiddling around with the connection.Love the fact you can change the bands too.One of the most motivating aspects of this watch for me is the built in exercises to choose from which then accurately records whatever you’re doing e.g. An outside walk (tracks GPS along with heart rate, distance, steps, active minutes based on your heart rate) or treadmill (everything listed before but GPS), workouts, weights, swimming etc. I especially love the new active zone minutes, you get single zone minutes in fat burn zone and double minutes in cardio or peak heart rate zones so I find it very easy to meet the minimum 150 active minutes per week, it’s very motivating to carry on when you’re smashing the zone minutes out!Sometimes, and I mean it’s only happened about 4 times since I’ve had it (since September) it kind of crashes in that the screen is black and won’t wake up, then I just have to hold the side button down for about 10 seconds and that sorts it out. Other than that it’s worked brilliantly for me.For anyone wondering I believe the only difference between this and the cheaper Versa 3 is that it also has a stress EDA scan and ECG function. They’re interesting insights but I’m not really sure what I can do with that information really, it seems to be more about health as well as fitness. But if you’re just into fitness then I would just get the Versa 3 because I’m pretty sure all other functions are identical.Overall I really enjoy this product, and use it every day. I don’t think I could go back to working out/doing my daily steps without one now!