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

4.3 4.3 out of 5 stars 28,983 ratings

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Carbon/Graphite
Ask to set a workout timer, check the weather, control smart home devices, and more with this device.
Alexa Built-in Learn more

Alexa Built-in

This device has been certified by Amazon. With Alexa built-in, just ask to set a timer, check the weather, control smart home devices, and more.

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About this item

  • 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

The revolutionary smart ring.
Track your sleep, recovery, and health in style. Shop now.

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$229.99
Get it as soon as Wednesday, Mar 20
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Top Brand: Fitbit

Highly Rated
4.2/5 star rating from 100K+ customer ratings
Trending
100K+ orders for this brand in past 3 months
Low Returns
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From the manufacturer

fitbit sense
Fitbit Sense
two fitbit sense smartwatches on a black gradient background

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Customer Reviews
4.2 out of 5 stars
12,624
4.4 out of 5 stars
15,246
4.6 out of 5 stars
33,155
4.3 out of 5 stars
56,832
4.3 out of 5 stars
11,829
Battery life (in days)
6+ 6+ 6+ 7 10
Water resistance
50m 50m 50m 50m 50m
Tracks activity & sleep
24/7 heart rate & AZM
Text, call & app notifications
Play music
Hundreds of apps & clock faces
Alexa & Google Assistant
Yes Yes Alexa Built-in No No
Built-in GPS
Stress tracking w/ EDA sensor
ECG app & skin temperature
High & low heart rate alerts

Product 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.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.59 x 1.59 x 0.49 inches; 1.06 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
  • Customer Reviews:
    4.3 4.3 out of 5 stars 28,983 ratings

Product guides and documents

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Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon/Graphite, One Size (S & L Bands Included)
Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon/Graphite, One Size (S & L Bands Included)
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Price-8% $229.99
List:$249.95
$99.95-18% $246.00
List:$299.95
-17% $49.99
List:$59.99
$199.95$389.99
Delivery
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Get it as soon as Wednesday, Mar 20
Customer Ratings
Sleep tracking
4.3
3.9
4.2
3.7
3.9
4.4
Mobile App
4.3
4.0
4.0
3.9
3.8
4.5
Battery life
4.2
4.5
4.2
4.3
4.0
4.2
Accuracy
4.0
3.9
3.7
3.7
4.3
4.6
Value for money
4.1
3.2
4.2
1.6
4.3
Sold By
B&A Marketing
Amazon.com
Sole Providers
FITVII STORE
Amazon.com
Amazon.com
size
1 Count (Pack of 1)
standard
41mm
operating system
android
android
ios
Android
ios
Watch OS
display size
1.58 inches
1968.51 inches
1.69 inches
1.69 inches
41 millimeters
connectivity tech
Bluetooth, gps
Bluetooth
Bluetooth
Ethernet
Wi-Fi
supported applications
Alexa, Heart Rate Monitor, Sleep Monitor, GPS, Phone, Voice Assistant, Reminders, Weather
Sleep Monitor, Heart Rate Monitor, Alarm, Phone, Fitness Tracker, Reminders
GPS, Sleep Monitor
Fitness Tracker, Alarm, Pedometer, Time Display
GPS, Phone
GPS
input interface
microphone
touch screen
touch screen
buttons
touch screen stylus pen
touch screen

Important information

Wattage

180 watts

Legal Disclaimer

Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
28,983 global ratings

Customers say

Customers have mixed opinions about the sleep tracking, battery life, heart rate, performance, and quality of the wearable computer.

AI-generated from the text of customer reviews

1,662 customers mention887 positive775 negative

Customers are mixed about the performance of the wearable computer. Some mention that it has helped them keep track, while others say that it fails miserably in its most primary function. They say the watch screen has stopped working and the SpO2 function is pretty useless.

"...Swapping out bands is so much quicker, easier, less need for super fine motor skills. LOVE the charger. It just sort of magnetizes to the fitbit...." Read more

"...It's the one feature that I will miss. OK, I agree, the spO2 is a bit of a joke, I haven't yet tried the GPS. For my money, it is functional...." Read more

"......" Read more

"...I find the SpO2 function pretty useless. First, it is not anywhere close when compared with two actual SpO2 devices...." Read more

1,190 customers mention730 positive460 negative

Customers have mixed opinions about the quality of the wearable computer. Some mention that it has many additional features, is accurate, and motivates them to improve their health, while others say that they are not impressed with the quality, the charging cable is clearly cheaply made, and the wallet is weak.

"...Hope it lasts. I love the look. The band is way better than the old pin style...." Read more

"...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..." Read more

"...I LOVE the sleep tracking feature which has helped tremendously in mindfulness of my habits & I even get a reminder to start getting ready for bed...." Read more

"...I threw the box away. I am not returning it! It doesn't feel cheap! It does what I need! It looks better than any other Fitbit I have owned...." Read more

977 customers mention478 positive499 negative

Customers are mixed about the battery life of the wearable computer. Some mention that it has a good battery life, while others say that it tends to run out fairly quickly. The charge on the battery is not long enough, and the cord is too short.

"...The Fitbit Sense is easy to read even when it's sunny out. Great battery life & charges super fast. Sleep mode is very helpful...." Read more

"...It drained to nothing daily.. and I needed to not have to worry about daily charging.. hence my picking up a Garmin in the interim to see if I liked..." Read more

"A Great device! Love it. Wear every day charges fast and love the reminder." Read more

"Short battery life" Read more

547 customers mention374 positive173 negative

Customers are mixed about the sleep tracking of the wearable computer. Some mention that it is extremely helpful in monitering their sleep, while others say that the sleep feature is erratic and never detects the correct times for sleep. It also doesn't keep accurate O2 sats and you can only get out of sleep mode if you click from a particular angle.

"...Having the Weather right on my wrist really helps, as does tracking heart rate, ECG, specific exercise, EDA/wellness scanner & of course to have the..." Read more

"...I'm pretty impressed with that. The sleep feature seems accurate when it measures the time fell asleep until the time I woke up...." Read more

"...It messes up my sleep time, says I wake times are 3-4 hours before I actually wake up. Not sure why that is...." Read more

"...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...." Read more

457 customers mention234 positive223 negative

Customers are mixed about the heart rate of the wearable computer. Some mention that the heartrate is accurate, the steps counter is pretty accurate, and sleep seems to be captured pretty well. However, some customers say that the monitor gives completely invalid readings all the time, and the ability to do a Heart Rhythm Assessment is limited.

"...HEART RATE is accurate. I have tested it against my garmin, two blood pressure devices, and a doctors appointment. All saying the same...." Read more

"...Our team is aware of the issues with the heart rate not being accurate, but may not be able to provide a fix in the immediate future...." Read more

"...The heartbeat rate is pretty much on target but I haven’t tested it above 120 where some people have issues with it being accurate...." Read more

"...other reviews have mentioned extensively, is the baffling inability of the heart rate monitor to reliably track your heart rate during high..." Read more

Pretty Impressive after 1 month of usage.
5 Stars
Pretty Impressive after 1 month of usage.
Updated Review:I initially gave it a 4 Star rating but just changed it to 5 Stars. I was having difficulty with viewing the daily rating of my Oxygen while sleeping. Some times it would register, other times it would not. I finally discovered that it was measuring my O2 level all the time. The results does not show up right away as you have to wait for a short time to appear.It did show me an upward trend in my temperature, resting heart rate, temperature variability with a downward trend in my Heart Rate Variability (HRV) when I came down with a nasty cold. I could trace it to the date it started.Original Review:The watch is pretty stylish. Comparing it to my sister's huge Samsung watch, this watch is sleeker and filled with more health features than hers.For accuracy, it is pretty good, but not perfect. I walked exactly 100 steps by counting them out, and the Sense showed 102. I'm pretty impressed with that. The sleep feature seems accurate when it measures the time fell asleep until the time I woke up. Even though it may not be totally accurate against more accurate medical-grade devices, it does give me a baseline and I can measure my progress from that. The heartbeat rate is pretty much on target but I haven’t tested it above 120 where some people have issues with it being accurate.What I find inaccurate: 1) the stairs counter. It misses counting about 4 out of 5 times. If I go down the stairs to the main floor and then back up again, I count 32 steps. 2) I find the SpO2 function pretty useless. First, it is not anywhere close when compared with two actual SpO2 devices. Secondly, sometimes it records while sleeping and other nights it fails to record for no known reason. There are a number of similar complaints and frustration on the Fitbit forum about this same problem. Also, you must use their clock face to record, which I find inconvenient. So, if you are thinking about getting this watch primarily for that feature, I would caution you.Other than that complaint, the watch is quite nice. The charging device is genius, you bring it near the watch, and it instantly connects. Charging times are very short, so that's a big plus. If you use it to record your sleep and then throughout the day, you might get 2 to 3 days between charges.Nice to have the texting and phone calls feature. Sometimes when I have my phone on vibrate only, I miss the call, but now with the Sense, I feel the vibration on my wrist notifying me of who it is. I can read a partial window of the text message too. When my phone is not on vibrate, I can text the person back through the voice feature. I can answer the call and talk to them through my watch; however, you have to hold the phone near your ear to hear them as the speaker is pretty weak.There is a learning curve if you are a first-time Fitbit user. This is true with the watch and with the App. The App is filled with many graphs and features. It will take some time to learn where they all are located, but eventually you will be able to navigate and find them. Speaking of navigation, if you swipe down on the watch to delve deeper into an app, you can swipe back up, but you cannot go back to the previous feature or forward to the next. You must press the button to go back home first where you must start your navigation over. I hope Fitbit improves upon this feature in the future.The silicone watch band was quite difficult to clasp and unclasp. It wasn't the most comfortable either, possibly because my wrist was in between the sizing holes. The nice feature of the band is that it only takes a couple of seconds to change them out. I purchased a nice elastic one-piece band that allows me to take the watch off and put it back on within 2 to 3 seconds. Here is the Amazon link: https://www.amazon.com/gp/product/B08KFFSHBH/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&th=1&psc=1 and there are two sizes. I do recommend this band as it comes in a variety of colors and patterns.So, in conclusion, would I recommend this watch? I would say yes as long as you are not needing it for the SpO2 feature which I find unreliable.
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Top reviews from the United States

Reviewed in the United States on July 11, 2021
Color: Carbon/GraphiteVerified Purchase
76 people found this helpful
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Reviewed in the United States on June 27, 2022
Color: Carbon/GraphiteVerified Purchase
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5.0 out of 5 stars Very helpful lil gadget :)
Reviewed in the United States on June 27, 2022
After lots of back and forth in decision between FitBit Sense and whatever it was AppleWatch… I decided the Sense had more of what I was looking for (health, sleep tracking, statistics of all it tracks, mindfulness practices, etc).
I’ve been loving this device for two years now, with minor screen scratches from my own carelessness by scraping the edges on the pool steps. The original strap broke within the first year, which gave me the reason to accessorize with amazing band choices found here on Amazon. That being said, I’ve found the longest lasting bands are the similar flexible material & style that originally came with the Sense.
I LOVE the sleep tracking feature which has helped tremendously in mindfulness of my habits & I even get a reminder to start getting ready for bed. Helps a lot. Then there’s the (basal) body temp ‘Sensing’/tracking that has made a big difference in health maintenance, mindfulness &awareness. Of course being able to see the texts from my phone (when devices are synched) and answering phone calls when away from my phone has truly been one of THE MOST HELPFUL advantages to having this thing. Oh- and “Find My Phone” feature- AMAZING! I put my phone down in my house and lose it to the point of regular frustration before I had this watch (I even have designated spots to put it down but somehow don’t )
And now, as long as my phone and Sense are synched, I push Find My Phone & the LOUD squawking beep blares from wherever- but sometimes it tells me to try going to a different room & try again- and very rarely has it not worked. The ‘Relax’ part is pretty cool too.
Two minute meditations that work wonders for me. Having the Weather right on my wrist really helps, as does tracking heart rate, ECG, specific exercise, EDA/wellness scanner & of course to have the time & date with customizable watch faces. One downside to this device is when my husband is around and I take it off or the band loosens & allows the flashing green lights to be visible (he’s got epilepsy & it can cause Aura)
I don’t use a lot of the features on this device & can’t figure out why the temperature switched to Celsius or how to put it back to Fahrenheit, but I’ve also not read how to do so beyond the basic no-duh tries to (settings on device & phone & power off)… then I honestly just decided to take this opportunity to learn Celsius -> plus seeing 35• makes the 95• Fahrenheit weather seem not quite as bad (until I step outside) (and after the first time seeing this change & thinking a freak sporadic ice age has begun (too much sci-fi, I know).
So all and all this lil helpful gadget has helped me regain health, mindfulness, less frustrations in daily life & punctuality.
So, Heck Yeah I suggest this lil beaut to you too.
:)
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Top reviews from other countries

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Rafael
5.0 out of 5 stars Bonito y sencillo
Reviewed in Mexico on April 28, 2022
Color: Carbon/GraphiteVerified Purchase
Simone
5.0 out of 5 stars Fitbit Sense - Smartwatch evoluto con strumenti per la salute del cuore
Reviewed in Italy on February 22, 2024
Color: Carbon/GraphiteVerified Purchase
Krzysztof122
1.0 out of 5 stars Słaby
Reviewed in Poland on October 1, 2022
Color: Carbon/GraphiteVerified Purchase
Anna
5.0 out of 5 stars Toppenköp!
Reviewed in Sweden on September 20, 2022
Color: Carbon/GraphiteVerified Purchase
Abhishek
5.0 out of 5 stars No Service centre in India
Reviewed in India on January 28, 2023
Color: Carbon/GraphiteVerified Purchase
11 people found this helpful
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