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Fitbit

Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Sage Grey/Silver, One Size (S & L Bands Included)

    • Based on 2,910 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Apr 3
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Color: Sage Grey/Silver


Features

  • Optimize your workouts with a Daily Readiness Score that reveals if youre ready to exercise or should focus on recover (requires Fitbit Premium membership. Premium content recommendations are not available in all locales and may be in English only)
  • 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
  • With a compatible ECG app right on your wrist, assess your heart for atrial fibrillation--a heart rhythm irregularity--and share the results with your doctor (Only available in select countries. Not intended for use by people under 22 years old)
  • An on-wrist skin temperature sensor tracks yours each night so you can see how it varies
  • Includes a 6-month Premium membership complete with personalized insights, advanced analytics, guided programs and more (New & returning Premium users only. Must activate trial within 60-days of device activation. Content and features may change)
  • High & low heart rate notifications alert you if yours seems above or below your average
  • Battery lasts 6+ daysplus, fast charging gives you a full days 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
  • Small fits wrist 5.5" - 7.1" in circumference and Large fits wrist 7.1" - 8.7" in circumference

Description

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.

Operating System: android


Memory Storage Capacity: 6400 MB


Special Feature: Time Display, Notifications, Heart Rate Monitor, Sleep Monitor, Menstural Health Tracking, Activity Tracker, Voice Assistant, Stress Tracking, ECG, Oxymeter (SpO2), Pedometer, Body Temperature Monitor, GPS See more


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


Battery Cell Composition: Lithium Ion


GPS: Built-in GPS


Shape: Rectangular


Screen Size: 1.69 Inches


Brand: Fitbit


Product Dimensions ‏ : ‎ 1.59 x 1.59 x 0.48 inches; 7.05 ounces


Item model number ‏ : ‎ FB512SRSG


Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)


Date First Available ‏ : ‎ August 16, 2021


Manufacturer ‏ : ‎ Fitbit Inc


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • I like the original Fitbit Sense, So happy I was able to replace my first one
Color: Sage Grey/Silver
I like my Fitbit Sense. I like it a lot. I originally bought my first one in 2021. It worked very well. Then it stopped charging. I cleaned the contacts on the back of the watch. I tried several of my charging cords. It still wouldn't charge. One of my kids suggested that I consider getting a new smart watch that's made by a different company. I caved & purchased a new one since I thought my battery must have died in my watch. In the meantime, I also purchased a new charging cord for my old Fitbit Sense. It worked & my old Fitbit Sense charged perfectly. Uh oh! Lesson learned, thoroughly check all charging cords & charging blocks to device in question. Ugh! At that point, I then owned 2 fitness watches. I gave my daughter the old Fitbit Sense since it worked. My problem was that with the new competitioners fitness watch was that although it looked pretty cool, I really hated the app that was attached to it. I thought I would get used to it but I didn't. I really hated it's format which made the watch useless to me. It was more geared for an elite athlete, which I am not. My predicament was that I couldn't take back my old watch from my child, especially after she already bought watch bands & accessories. Unfortunately I wasn't going to keep the new watch. It was too expensive to have an app that didn't work for me. After checking around where I could buy a Fitbit sense original, I was sad to see that Fitbit stopped making the original anymore. I really liked my old Fitbit sense. The upgraded Sense 2 has omitted some features that I liked on the original. Luckily when I looked on Amazon I found they some in stock & I was able to purchase a new Fitbit Sense. I really do like the Fitbit Sense. I think it's a pretty good workhorse & I'm happy I found it. I know that in a near future it will be very difficult to find a new original one. I thought the price was pretty good. It was definitely less than the original one I owned previously. I wish there were some more features as far as watch faces but I'm pretty happy with it. I think it will last a long time. (fingers crossed) maybe when this one croaks, Fitbit/ Google will come up with another watch that includes all the features that I like. ... show more
Reviewed in the United States on February 27, 2024 by Zoobadoo
    • Fitbit Sense
Color: Sage Grey/Silver
Being from the "older" generation I was a bit intimidated with no instructions to set it up. We don't have internet so one more challenge. I must say it was pretty simple to setup with my android phone internet. It took a couple of hours but does everything I need it to. I especially needed the e c g feature. Only had 1 day but so far it's great!! ... show more
Reviewed in the United States on January 26, 2025 by JB
    • Poorly designed, lacking customer service.
Color: Sage Grey/Silver
Purchased this product as part of a $100 sale around black Friday, as it had some positive reviews. After using it for approximately two weeks, the frustrations became more than could be handled, so it was returned. Some of the issues are just cosmetic, but there are some serious functionality issues too. 1) Limited customization options - when trying to customize the watch face, the options to do so are quite limited. 2) The gray band isn't as gray as you would think, it's more brown/gray. 3) Heart rate monitor is not accurate at all. While not doing anything it consistently shows my BPM as 75+, when I can manually count it as much closer to 55. The same goes during activity, as during my runs it shows my BPM as consistently being over 180. 4) You need to keep the fitbit app open and running in the background on your phone if you want any of the apps to work on it, specifically the weather. This isn't a major issue except that background apps like to drain your battery life, which iPhones aren't exactly stellar about to begin with. 5) The face has a rather slow response time, as it typically takes me about 4-5 taps to get it to recognize and turn on. 6) The bluetooth connection is awful. I couldn't be anymore than maybe 10 feet from my phone for it to stay connected, and sometimes that was even too far. I could have my phone in my pocket and it would randomly disconnect. I attempted to discuss the issues with FitBit themselves (specifically the bluetooth connection) but the customer service was lacking, with slow response times online (third conversation took almost an hour to get nowhere) or sometimes no response (first two conversations resulted in dropped follow-ups from FitBit). I had an older fitbit inspire which I lost a couple years ago, which was a much better device, so maybe the less technologically advanced versions are the way to go. Either way I wouldn't buy another FitBit. ... show more
Reviewed in the United States on December 19, 2021 by Frank B.
    • Great Smartwatch With Emphasis on Fitness/Health
Color: Sage Grey/Silver
This Fitbit Sense smartwatch looks remarkably like the Apple Watch, both in design and in size, but of course it's tooled to the Fitbit platform. I like that it reminds you when to get up and walk around to keep you from being too sedentary. Although it's not entirely accurate with its step count -- you can wave your hand around and get steps -- it's much more accurate than earlier Fitbit wrist-worn products. (I used to have a Fitbit One that I carried in my pocket because it was more accurate than the wrist Fitbits.) It's easy to set up and use. This comes with a silicone band than can be easily swapped out for a mesh band from another company. I don't mind the silicone band, but others may prefer a dressier, more formal look to hide the fact that they are wearing a Fitbit. -- Debbie Lee Wesselmann ... show more
Reviewed in the United States on December 30, 2021 by Debbie Lee Wesselmann

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