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Fitbit Sense 2 Advanced Health and Fitness Smartwatch with Tools To Manage Stress and Sleep, Ecg App, Spo2, 24/7 Heart Rate and Gps, Shadow Grey/Graphite, One Size (S and L Bands Included)

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Purchase options and add-ons

Operating system Android
Special feature Heart Rate Monitor
Connectivity technology Bluetooth
Wireless communication standard Bluetooth
Battery cell composition Lithium Ion
Shape Rectangular
Screen size 1.58 Inches
Brand Fitbit
Model name Sense 2
Style Modern

About this item

  • Learn to manage stress, sleep better and live healthier with Sense 2—our most advanced health and fitness smartwatch
  • Manage stress and live healthier: all-day stress detection with cEDA and daily stress management score, ECG app for atrial fibrillation assessment(1), irregular heart rhythm notifications(2), spO2(3), health metrics dashboard(4), menstrual health tracking and mindfulness content
  • Track and improve sleep quality: personalized sleep profile(5), daily sleep stages sleep score, smart wake alarm and do not disturb mode
  • Enhance activity: built-in gps and workout intensity map, daily readiness score(5), active zone minutes, all-day activity tracking and 24/7 heart rate, 40+ exercise modes and automatic exercise tracking, slim and water resistant to 50 meters
  • Designed for all-day wear: on-wrist bluetooth calls, texts and phone notifications(6), customizable clock faces, Fitbit pay(7), Amazon Alexa built-in(8), Google Wallet & Maps (Google Maps Android only, coming Spring 2023 to iOS), 6+ day battery(9)
  • Includes 6-month premium membership for deeper insights guidance, exclusive workouts, mindfulness sessions and more(10)

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Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.

Product description

Meet sense 2—the smartwatch designed to help you stress less, sleep better live healthier. Get help identifying stress and get the tools to better manage it. Learn more about your sleep and how to improve your rest with detailed nighttime tracking and a unique sleep profile. Track key heart-health indicators so you can make more informed wellness decisions. Plus sense 2 is packed with advanced activity tracking and smartwatch features and includes six months of fitbit premium membership. Fitbit is part of the google family. 1) the fitbit ecg app is only available in select countries and with select devices. Not intended for use by people under 22 years old. See fitbit. Com/ecg for additional details. 2) irregular rhythm notifications are only available in select countries and with select fitbit products; not intended for use by people under 22 years old or with other known arrhythmias. See fitbit. Com/irregularrhythm for additional details. 3) not available in all markets. The spo2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose. It is intended to help you manage your well-being and keep track of your information. 4) the health metrics dashboard and the metrics displayed in the dashboard are not available in all countries. This feature should not be relied on for any medical purposes. It is intended to provide information that can help you manage your well-being. The spo2 feature requires more frequent charging. 5) requires a fitbit premium membership. Premium content recommendations are not available in all locales and may be in english only. 6) when phone is nearby. 7) see bank and transit availability at fitbit. Com/fitbit-pay/banks 8) amazon, alexa and all related marks are trademarks of amazon. Com, inc. Or its affiliates. Alexa is not available in all languages and countries. Alexa features and functionality may vary by location. 9) varies with use and other factors. Up to 12 hours with continuous gps. Get 24 hours of charge with 12 minutes of charging. 10) 6 months of premium for new premium users only. Must activate with device. Valid payment method required. Free trial must be activated within 60 days of device activation. Cancel before free trial ends to avoid subscription fees. Requires use of fitbit app with compatible iphone or android devices. A google account will be required.


From the manufacturer

Sense 2 copy over an image of a woman holding a phone
hotspot features and benefits for the sense 2 smart watch

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Customer Reviews
4.1 out of 5 stars
1,966
4.3 out of 5 stars
3,134
4.2 out of 5 stars
5,242
4.4 out of 5 stars
6,294
4.4 out of 5 stars
4,217
Price
$319.00 $242.96 $129.94
Battery life (in days)
6 6 7 5 10
Steps, distance & calories
24/7 heart rate & AZM
Built-in GPS
Yes Yes Yes Connected GPS Connected GPS
Sleep tracking & sleep stages
Sleep Profile & Sleep Score
Stress Management Score
All-day body-response tracking
ECG app for Afib detection
Call, text & app notifications
Alexa built-in
Daily Readiness Score
Fitbit logo over top an image of a woman running

Product information

Technical Details

Additional Information

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Fitbit Sense 2 Advanced Health and Fitness Smartwatch with Tools To Manage Stress and Sleep, Ecg App, Spo2, 24/7 Heart Rate and Gps, Shadow Grey/Graphite, One Size (S and L Bands Included)


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Product details

  • Batteries ‏ : ‎ 1 Lithium Polymer batteries required. (included)
  • Product Dimensions ‏ : ‎ 24.87 x 4.04 x 1.12 cm; 37.65 g
  • Date First Available ‏ : ‎ Aug. 24 2022
  • Manufacturer ‏ : ‎ Fitbit
  • ASIN ‏ : ‎ B0B75W8FH2
  • Item model number ‏ : ‎ FB521BKGB-FRCJK
  • Department ‏ : ‎ Unisex-Adult
  • Customer Reviews:

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
1,966 global ratings
Good quality
5 Stars
Good quality
Works as advertised, brings me comfort in keeping track of my health and well being. Automatic tracking feature is a bonus, not having to remember to mark when I’m going for walks and such is helpful. Sleep tracking and heart rate, all good things and cheaper than an Apple Watch. Not all the same features but it has the ones I wanted
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Top reviews from Canada

Reviewed in Canada on June 25, 2024
Colour Name: Shadow Grey/GraphiteVerified Purchase
I like the abundance of functions and features and that it syncs with the phone.
In this way such a variety of information about your body during all kinds of activities can be monitored.
This gives me the ability to optimize all my movements throughout the day.
Great knowledge about my body.
I am a little suspicious of the wristband and how long it will last, however, I am assuming that spare wrist bands can be purchased separately. So far after one week of continuous use it seems fine.
Reviewed in Canada on May 3, 2024
Colour Name: Blue Mist/Pale GoldVerified Purchase
Great product and service
Reviewed in Canada on December 12, 2023
Colour Name: Shadow Grey/GraphiteVerified Purchase
I have been a FitBit user since 2015 and I've had the charge and Versa 1-3. This is my first time having a sense. I got the sense as I am having concerns with my heart since being infected with covid and liked that it had an Afib alert and stress management (I'm a MSW student in my final year so pretty stressed).

I love the stress alerts it has helped significantly with managing my anxiety and stress as it gives me reminders to chill out for a second which is what I really needed.

Knock on wood no Afib alerts, but this has helped me get a cardiologist appointment as I'm constantly tachycardic at rest and it's fairly accurate as it showed at the doctors office with a manual check off by maybe 1-3 beats each time. Again really accurate to the doctors visit and the electronic blood pressure machine that I have.

The issue with it and I think it's a problem with Google acquiring FitBit is that there are service outages there was a huge one in October for 72 hours nothing synced and disconnected from my apps I use with it like MyFitnessPal. The weather app that is apart of this watch often does not sync and requires a full app stop and disconnect and reconnect to Bluetooth on your phone. Sometimes nothing syncs until this is done. I have never had this issue prior.

This is just nitpicky but the body response is often delayed, like I'll have anxiety then I calm down then it tells me 10 minutes later. But on the flipside I'm not aware and it tells me then it helps a lot. There is also not a lot of options or somewhere to log how you are feeling. It gives you a couple of faces ranging from content and stressed, but no option for sick or anxious or anything unless you log a menstrual cycle. There is no option for stating in pain either, so folks who may get a body response due to pain there isn't anything.

Other than that I do really like it, but if you don't need to monitor your mental health or heart as closely opt for a versa.
14 people found this helpful
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Reviewed in Canada on May 2, 2024
Colour Name: Shadow Grey/GraphiteVerified Purchase
Works as advertised, brings me comfort in keeping track of my health and well being. Automatic tracking feature is a bonus, not having to remember to mark when I’m going for walks and such is helpful. Sleep tracking and heart rate, all good things and cheaper than an Apple Watch. Not all the same features but it has the ones I wanted
Customer image
5.0 out of 5 stars Good quality
Reviewed in Canada on May 2, 2024
Works as advertised, brings me comfort in keeping track of my health and well being. Automatic tracking feature is a bonus, not having to remember to mark when I’m going for walks and such is helpful. Sleep tracking and heart rate, all good things and cheaper than an Apple Watch. Not all the same features but it has the ones I wanted
Images in this review
Customer image
Customer image
2 people found this helpful
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Reviewed in Canada on July 28, 2023
Colour Name: Lunar White/PlatinumVerified Purchase
Purchased on Jan 12 2023, started with it on Android and happened to switch back to iOS in April, and it started to break and not work in June, returned it under warranty for a replacement in July.

It was great on android when all the features were unlocked through the free trial for premium, as soon as that stopped it pay-walled the majority of features and didn't make the watch worth it in my opinion but I still would have continued to use it on IOS if it didn't break.

About a month ago multiple things started breaking, the automated exercise detection stopped working entirely, and the touch screen would stop responding randomly. So you would start an exercise and then not be able to end it till it started working again, the physical button will pause it but then you have to end it still via the screen.

And looking back, it would lose the heart rate monitor constantly while working out and sweating, I tried keeping it looser, tighter, wiping it, nothing had great results... it really seemed hit or miss depending on the day. Seems like the one thing a exercise monitoring watch should get right....

The payment system never worked at all the entire time I had the watch, either the native Fitbit one or google wallet when they rolled that out a few months ago. But both my iOS phone and old android had no issues with tap pay.

Their customer service is absolutely terrible. One of the main reasons I went back to iOS was after having to deal with Samsung Customer Service, but some how Fitbit seems to have one-up'd them in the crap department. They will disconnect the chat constantly, they will ignore what you say, and they won't follow-up.

It took weeks to finally get the return airway bill to send the watch back to them. Maybe it was better before Google took over, but I will never buy another Fitbit again after having dealt with them.

If it had not broken, I would have continued to use it till I found something else or if I had stayed on Android but at the end of the day why would I want to pay $105/ year when I can get an apple watch with all the same features and not have a subscription.
15 people found this helpful
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Reviewed in Canada on June 1, 2024
Colour Name: Shadow Grey/GraphiteVerified Purchase
Pour suivre mon rythme cardiaque en tout temps,à l’intérieur comme à l’extérieur!
Reviewed in Canada on May 27, 2023
Colour Name: Shadow Grey/GraphiteVerified Purchase
After having my Sense 2 for a months, I decided to return it. I was not happy with the fact that the watch did not sync consistently with the app. For example, on the main watch face, there are places for sleep score and daily readiness score, but these were often blank, even after making sure the app was synced. Also, there are fewer features than some of the Versa models. The Sense 2 does not work with Spotify or Starbucks, whereas some of the Versa models have many apps like this that can be used on the watch. Also, the only Canadian Bank that works with FitBit Pay is RBC, which I do not use. The Google Wallet app never worked for me, and not everything works with iOS (Google Maps was just added). I did like the fact that I could get notifications on the watch and take calls on the watch…but some (if not all) Versa models do this for far less money. From what I could tell, the Sense 2 had two features that other Fitbit watches do not: ECG and the Eda sensor for stress. It was not worth the extra $150-200 for these two features, so that is why I will be going with a Versa or Apple Watch.
21 people found this helpful
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Top reviews from other countries

vinuu s vinod
5.0 out of 5 stars Buy it you will not regret
Reviewed in India on November 21, 2022
Colour Name: Lunar White/PlatinumVerified Purchase
I wanted to buy apple watch but stepped back because of the horrible battery backup. Fitbit sense 2 ticks all the boxes in terms of battery life and features

Battery life : 4 days with allways on display on.

cEDA (continuous stress response tracking) : I was getting ready to give a presentation and very nervous about it fitbit sense 2 instantly triggered a stress response and notified me to log my mood.
Another day, i was late to work and driving very furiously it alerted me that I got stress response and notified to log my mood. Amazing tech

Build quality : It is very light and very slim, the bezels around the screen are very attractive.

Functionality : Initially it doesn't support phone call feature but they added via update now we can talk phone calls from the watch.

Google maps and Google Pay are also coming via update.

Accuracy : Fitbit sleep tracking and other metrics accuracy is very good.
It can track all your health metrics like

Breathing rate
Skin Temperature
Heart rate variability
Stress
Cardio fitness
SpO2
Daily readiness score

Notifications : We can reply via emoji, quick responses and also speech to text it can convert what you speak (only English) through text.

Comfort : It is very comfortable than apple watch. The fitbit sense 2 is very light weight and very comfort to wear all day we almost forgots the watch is there.

Strap : Strap built quality is awesome it is very strong and stain resistant no need to worry about stains.

Ecg : Ecg readings are very accurate we can get results within 30 seconds

Stress is the main cause for many diseases now a days fitbit sense 2 helps us to know when we are stressing and there are many tools to get rid of stress inside fitbit app.

Upcoming features : Google maps and Google Pay

Overall it is a feature rich and awesome product iam very happy with my purchase.
Customer image
vinuu s vinod
5.0 out of 5 stars Buy it you will not regret
Reviewed in India on November 21, 2022
I wanted to buy apple watch but stepped back because of the horrible battery backup. Fitbit sense 2 ticks all the boxes in terms of battery life and features

Battery life : 4 days with allways on display on.

cEDA (continuous stress response tracking) : I was getting ready to give a presentation and very nervous about it fitbit sense 2 instantly triggered a stress response and notified me to log my mood.
Another day, i was late to work and driving very furiously it alerted me that I got stress response and notified to log my mood. Amazing tech

Build quality : It is very light and very slim, the bezels around the screen are very attractive.

Functionality : Initially it doesn't support phone call feature but they added via update now we can talk phone calls from the watch.

Google maps and Google Pay are also coming via update.

Accuracy : Fitbit sleep tracking and other metrics accuracy is very good.
It can track all your health metrics like

Breathing rate
Skin Temperature
Heart rate variability
Stress
Cardio fitness
SpO2
Daily readiness score

Notifications : We can reply via emoji, quick responses and also speech to text it can convert what you speak (only English) through text.

Comfort : It is very comfortable than apple watch. The fitbit sense 2 is very light weight and very comfort to wear all day we almost forgots the watch is there.

Strap : Strap built quality is awesome it is very strong and stain resistant no need to worry about stains.

Ecg : Ecg readings are very accurate we can get results within 30 seconds

Stress is the main cause for many diseases now a days fitbit sense 2 helps us to know when we are stressing and there are many tools to get rid of stress inside fitbit app.

Upcoming features : Google maps and Google Pay

Overall it is a feature rich and awesome product iam very happy with my purchase.
Images in this review
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32 people found this helpful
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杉本 純子
5.0 out of 5 stars 睡眠の質がわかる
Reviewed in Japan on June 9, 2024
Colour Name: Blue Mist/Pale GoldVerified Purchase
寝るときもつけているので自分の眠りの質がわかり参考になる
One person found this helpful
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Simon (VIC)
5.0 out of 5 stars Upgraded from Versa2 (Brilliant)
Reviewed in Australia on April 4, 2024
Colour Name: Shadow Grey/GraphiteVerified Purchase
Great watch, great functions. Significantly better than my old Versa2 in almost every way. GPS is great, auto-detection of exercise is a bit slow, but better than forgetting totally. Built-in Alexa is fantastic. Haven't used the phone functions at all (I'd feel like a tosser if I did)...
One person found this helpful
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Gabs
5.0 out of 5 stars Best smartwatch out there
Reviewed in Singapore on January 22, 2024
Colour Name: Blue Mist/Pale GoldVerified Purchase
I had fitbit versa 2 for years before switching to this model. The battery lasts almost 6 days if you disable the notifications and only use it as a fitness tracker. Significantly more diverse fitness tracking options compared to versa 2. Inbuilt GPS makes tracking runs more accurate. Great for people looking to live a more active lifestyle whether it’s walking more or maximising your gym time.
Ong
5.0 out of 5 stars Good Quality Well Made
Reviewed in Singapore on December 16, 2022
Colour Name: Shadow Grey/GraphiteVerified Purchase
Esthetically good looking and well made product. Like its sleep monitoring function in addition to the usual functions of a tracker. Long battery life another plus point. Only need charging after 5 to 6 days on normal usage.

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