---
product_id: 222933551
title: "Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends```"
brand: "fitbit"
price: "$318.06"
currency: USD
in_stock: true
reviews_count: 8
category: "Fitbit"
url: https://www.desertcart.us/products/222933551-fitbit-sense-advanced-unisex-smartwatch-with-tools-for-heart-health
store_origin: US
region: United States of America
---

# 6+ day battery life with fast charge Real-time heart rate & abnormal rate alerts On-wrist skin temperature trend tracking Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends```

**Brand:** fitbit
**Price:** $318.06
**Availability:** ✅ In Stock

## Summary

> ⌚ Elevate your wellness game with Fitbit Sense — where smart meets stylish!

## Quick Answers

- **What is this?** Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` by fitbit
- **How much does it cost?** $318.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/222933551-fitbit-sense-advanced-unisex-smartwatch-with-tools-for-heart-health)

## Best For

- fitbit enthusiasts

## Why This Product

- Trusted fitbit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Stay Powered Longer:** Enjoy over 6 days of uninterrupted use with rapid charging to keep you moving.
- • **Stress Less, Live More:** Advanced EDA sensor detects your body's stress signals so you can manage tension proactively.
- • **Heart Health at a Glance:** Receive instant notifications for high or low heart rates to stay ahead of your wellness.
- • **Premium Design Meets Smart Tech:** Sleek stainless steel, vibrant AMOLED display, and durable Gorilla Glass 3 combine style with resilience.
- • **Track Your Unique Body Temperature:** Monitor nightly skin temperature trends to catch subtle health changes early.

## Overview

The Fitbit Sense is a cutting-edge unisex smartwatch designed for professionals who prioritize health and style. Featuring a 6+ day battery, advanced heart rate monitoring with alerts, stress management via EDA sensor, and skin temperature trend tracking, it empowers users to make smarter health decisions. Its premium stainless steel design and AMOLED display ensure it looks as good as it performs, seamlessly syncing with iOS and Android devices for a comprehensive wellness experience.

## Description

Free delivery and returns on eligible orders. Buy Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon / Graphite Stainless Steel at desertcart UK.

Review: Back with Fitbit again! Updated review - So I got this delivered on lauch day (25th September) and have worn it every day and night since. I have had many fitbit trackers in the past and the last one was the Ionic. I gave up on the Ionic after a year because I had so many issues with it, the worst being it would loose connection with my phone for no reason and then I had to unpair, delete and re install time and time again. I have been using the Samsung galaxy watch active 2 since and it was an excellent smartwatch but its fitness tracking was not good mostly because of the calories burned during exercise which was so off. I was excited to see the Sense on the fitbit website before it launched and I decided to treat myself. I always buy from desertcart because their customer service and aftercare is excellent. Putting it simply I love this watch. It looks great, feels premium and the screen is bright and clear. I'm fully used to the haptic button and prefer it to an actual button as it means that the watch will be better protected from water. My only problem is that when doing strenuous exercise like spinning the heart rate sensor takes a while to register the high heart rate reached, sometimes my heart rate slows a bit before the watch catches up which meand I miss out on the top range readings of my heart rate. Also the watch seems to think my heart rate drops down into the 110 to 120 bpm after an intense interval but my heart rate is definitely still really high in between hard efforts so this does bother me. My Ionic did this when I first got it but it seemed to improve over time so I'm hoping that the Sense does too. My guess is that it is something software related which can be fixed. Also when weight training the watch puts my heart rate at 110 to 120 bpm when I know that after doing squats for 6 solid minutes with a weights bar my heart rate is way higher, my Samsung puts my heart rate at 140 to 150 bpm for this. Walking seems accurate as does martial arts and kick boxing. Maybe fitbit could fix this with an update. All of the features of this watch are great and I love it. I'm looking forward to seeing what updates come in the future to improve things. I'm especially looking forward to being able to answer phone calls on the watch as this was a big feature I enjoyed with my Samsung. The new os is nice and the connection to the phone is way more stable but it did drop out once so far and I had to unpair, delete and re install then it worked. I think that fitbit might be working on stability now as it needs to be better to be able to take calls on the watch so I'm guessing that's why we don't have that function yet. All in all I'm happy despite the niggles. I find this watch exciting. Update! My sense had to be sent back to fitbit today as it was faulty. I'm very happy with fitbit customer service so far as they are replacing my sense with very little effort to action this. Unfortunately though desertcart now don't replace faulty products after the 1st 30 days. They used to replace faulty products up to a year after purchase which is why I bought it from them. I will just buy from the manufacturer in the future now. I have to say the desertcart customer service lady was excellent, not her fault that the procedure has changed. Just thought this might be an important point to make incase anyone else buys from desertcart because of the returns policy which has now changed.
Review: Nice attractive watch - It is a very nice watch that has all the features you could ask for, heart rate monitoring, steps, sleep etc etc. I have mine linked to iPhone and whilst it works well with the Fitbit app itself, it doesn’t really play ball with Apple Health very well, so you have to decide which eco system you want to be in. If you are happy to do everything in the Fitbit app then that’s all you really need. The app records all your daily steps and workouts, either automatically or you can start them manually, and a built in GPS is nice for when you want to map your workout. At the moment I mainly just walk so I let it auto detect my walk and don’t have the GPS activated so it consumes less battery. After the walk it will pop up in your daily activities as a walk and will tell you how many steps you did on that walk, your heart rate and zones you were in such as fat burn or cardio so that is great. Sleep tracking seems to work well and seems to report how diabolical my sleep really is accurately. Build quality is very nice as well and it feels a premium product. I upgraded from a Fitbit Ionic to this Fitbit Sense and do feel it is a worthwhile upgrade, so no regrets there. It has plenty of customisation of styles to keep it interesting as well. I am basically using the Fitbit to try and lose some weight and get fitter again after a long period (since the pandemic started) of inactivity, so for me I find it a worthwhile tool to encourage you to make an effort to improve your health, and it has the application and hardware to achieve this if you are willing to work at it.

## Features

- BATTERY LIFE: 6+ day battery & fast charge**
- Compatibility: Compatible with iOS 15 or higher & Android OS 9.0 or higher
- EDA Sensor & Stress Management: The on-wrist EDA Scan app for Sense detects electrodermal activity, which may indicate your body’s response to stress so you can better track and manage it.
- High & Low Heart Rate Notification: Resting heart rate is a key indicator of health, so Sense keeps you informed when yours appears to be abnormally high or low.
- On-Wrist Skin Temperature Sensor: Sense logs your skin temperature each night to show how it varies from your personal baseline, so you can be aware of trends over time.
- Better with Premium: Discover the full Fitbit experience with personalised insights. Connect the dots across your activity, heart rate, stress and sleep so you can make smarter choices.
- Premium Design: A polished stainless steel ring, custom AMOLED display, laser-bonded Corning Gorilla Glass 3 and innovative biosensor core make every piece of Sense exceptional by design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DFCWVZ4 |
| Age range | Adult |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries included? | Yes |
| Best Sellers Rank | 34,002 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 158 in Activity Trackers |
| Brand | Fitbit |
| Color | Carbon / Graphite Stainless Steel |
| Compatible with | Smartphone |
| Customer Reviews | 4.2 4.2 out of 5 stars (23,413) |
| Date First Available | 26 Aug. 2020 |
| Department | Unisex |
| Display size | 1.58 Inches |
| Display type | AMOLED |
| Features | Stress Tracking, Activity Tracker, Body Temperature Monitoring, Heart Rate Monitor, Sleep Monitor, GPS, Oxymeter (SpO2) |
| Included components | Fitbit Sense, Classic wristband (both small & large), Charging cable |
| Is discontinued by manufacturer | No |
| Item model number | FB512BKBK |
| Manufacturer | Fitbit |
| Material type | Synthetic |
| Meter | Heart Rate, Stress, Body Temperature, Blood Oxygen or SpO2 |
| Number of items | 1 |
| Power source | Hand-operated |
| Product Dimensions | 4.05 x 4.05 x 1.24 cm; 31.18 g |
| Shape | Square |
| Size | One Size |
| Sport | Exercise & Fitness, Running, Swimming, Walking, Water Sports |
| Style | Smartwatch |
| Wattage | 180 watts |
| Weight | 0.03 Kilograms |

## Product Details

- **Battery capacity:** 266 Milliamp Hours
- **Battery cell composition:** Lithium Ion
- **Connectivity technology:** GPS
- **GPS:** Built-in GPS
- **Memory storage capacity:** 6400 MB
- **Operating system:** IOS13+; Android 8+
- **Screen size:** 1.58 Inches
- **Shape:** Square
- **Wireless communication standard:** Bluetooth

## Images

![Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` - Image 1](https://m.media-amazon.com/images/I/51f9mugMy2L.jpg)
![Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` - Image 2](https://m.media-amazon.com/images/I/51uo8ANgq8L.jpg)
![Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` - Image 3](https://m.media-amazon.com/images/I/7115-vCSNTL.jpg)
![Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` - Image 4](https://m.media-amazon.com/images/I/716hIJNi9TL.jpg)
![Fitbit Sense Advanced Unisex Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends``` - Image 5](https://m.media-amazon.com/images/I/71Alc-pxQ-L.jpg)

## Available Options

This product comes in different **Pattern, Color, Style** options.

## Questions & Answers

**Q: I need to know if this product measures spo2 levels? that's the only reason i'm looking for a new device.**
A: The Fitbit Sense measures Sp02 at night which is vital for my health. Also the alerts when your heartrate goes above or below certain numbers iis awesome. BEWARE: If you change the band to a designer band (I got the Pendleton Weave), it changes the fit, stopped giving me a sleep quality score, stopped measuring my Sp02 @ night. And I started earning 8X the floors I normally get. Lol Not so bad but I knew I didn’t earn the # of floors. Even though this question is 4 mos old, hopefully it will help someone else when choosing a band. The band that comes with the Sense isn’t very flexible. It rubbed a very sore place on my wrist bone.  I had a Charge 3. Chose a Sense after 3 pneumonias; one causing congestive heart failure and because I have 
SVTs. There are nice features to help me monitor these things & share with my physicians.

**Q: Does it regiater 02 sats?**
A: Yes... It measures SP02, but only at night while sleeping. That is when its important; when the heart is at rest. The Sense does measure the resting heart level. During the day, there is a relationship between breath rate and heart rate. The body calls for more 02 so the heart pumps faster for faster passage of blood through the lungs. You can see this relationship at HEART RATE. At the top there is a heavy white graph of the average resting rate. Swipe LEFT and you will get your cardio score. I have breathing issues sleeping and the Sense has helped me greatly.

**Q: Is there a way to calibrate the heart beat? it is really inaccurate as measured by my charge 2, polar, kardia , anybody?**
A: There is a whole thread on the Fitbit Community board with multiple users saying  how inaccurate the Sense is when measured by accurate heart monitors like the Polar chest strap and that the Sense is only accurate when you are inactive. So if you are just sedentary you are ok. But I've found that it is not as accurate as even the Charge 2.  So idk if it can be synced- I don't think so.

**Q: If i buy this on amazon will the watch only come with alexa support or will it also have the google assistant support as well?**
A: At the moment only Alexa is enabled on the watch. Next month there will be an update that enables Google, the ECG and probably SPO2 sensing without a specific watchface. Trust me - Fitbit is about to be owned by Google... Google Assistant will be at least offered on it regardless where you bought it. It's just they need to update the firmware to support it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Back with Fitbit again! Updated review
*by R***L on 30 October 2020*

So I got this delivered on lauch day (25th September) and have worn it every day and night since. I have had many fitbit trackers in the past and the last one was the Ionic. I gave up on the Ionic after a year because I had so many issues with it, the worst being it would loose connection with my phone for no reason and then I had to unpair, delete and re install time and time again. I have been using the Samsung galaxy watch active 2 since and it was an excellent smartwatch but its fitness tracking was not good mostly because of the calories burned during exercise which was so off. I was excited to see the Sense on the fitbit website before it launched and I decided to treat myself. I always buy from Amazon because their customer service and aftercare is excellent. Putting it simply I love this watch. It looks great, feels premium and the screen is bright and clear. I'm fully used to the haptic button and prefer it to an actual button as it means that the watch will be better protected from water. My only problem is that when doing strenuous exercise like spinning the heart rate sensor takes a while to register the high heart rate reached, sometimes my heart rate slows a bit before the watch catches up which meand I miss out on the top range readings of my heart rate. Also the watch seems to think my heart rate drops down into the 110 to 120 bpm after an intense interval but my heart rate is definitely still really high in between hard efforts so this does bother me. My Ionic did this when I first got it but it seemed to improve over time so I'm hoping that the Sense does too. My guess is that it is something software related which can be fixed. Also when weight training the watch puts my heart rate at 110 to 120 bpm when I know that after doing squats for 6 solid minutes with a weights bar my heart rate is way higher, my Samsung puts my heart rate at 140 to 150 bpm for this. Walking seems accurate as does martial arts and kick boxing. Maybe fitbit could fix this with an update. All of the features of this watch are great and I love it. I'm looking forward to seeing what updates come in the future to improve things. I'm especially looking forward to being able to answer phone calls on the watch as this was a big feature I enjoyed with my Samsung. The new os is nice and the connection to the phone is way more stable but it did drop out once so far and I had to unpair, delete and re install then it worked. I think that fitbit might be working on stability now as it needs to be better to be able to take calls on the watch so I'm guessing that's why we don't have that function yet. All in all I'm happy despite the niggles. I find this watch exciting. Update! My sense had to be sent back to fitbit today as it was faulty. I'm very happy with fitbit customer service so far as they are replacing my sense with very little effort to action this. Unfortunately though Amazon now don't replace faulty products after the 1st 30 days. They used to replace faulty products up to a year after purchase which is why I bought it from them. I will just buy from the manufacturer in the future now. I have to say the Amazon customer service lady was excellent, not her fault that the procedure has changed. Just thought this might be an important point to make incase anyone else buys from Amazon because of the returns policy which has now changed.

### ⭐⭐⭐⭐⭐ Nice attractive watch
*by M***R on 3 July 2021*

It is a very nice watch that has all the features you could ask for, heart rate monitoring, steps, sleep etc etc. I have mine linked to iPhone and whilst it works well with the Fitbit app itself, it doesn’t really play ball with Apple Health very well, so you have to decide which eco system you want to be in. If you are happy to do everything in the Fitbit app then that’s all you really need. The app records all your daily steps and workouts, either automatically or you can start them manually, and a built in GPS is nice for when you want to map your workout. At the moment I mainly just walk so I let it auto detect my walk and don’t have the GPS activated so it consumes less battery. After the walk it will pop up in your daily activities as a walk and will tell you how many steps you did on that walk, your heart rate and zones you were in such as fat burn or cardio so that is great. Sleep tracking seems to work well and seems to report how diabolical my sleep really is accurately. Build quality is very nice as well and it feels a premium product. I upgraded from a Fitbit Ionic to this Fitbit Sense and do feel it is a worthwhile upgrade, so no regrets there. It has plenty of customisation of styles to keep it interesting as well. I am basically using the Fitbit to try and lose some weight and get fitter again after a long period (since the pandemic started) of inactivity, so for me I find it a worthwhile tool to encourage you to make an effort to improve your health, and it has the application and hardware to achieve this if you are willing to work at it.

### ⭐⭐⭐⭐ Good. But….
*by M***Y on 4 May 2022*

I bought this as an upgrade for a Charge 3 as I wanted to be able to access more health information, I did not buy it as a smart watch which to be honest is probably a good thing as it really isn’t one (yet?) I don’t use the voice features, call making feature, Spotify or most of the apps. Pros. I am impressed with the sleep tracking and all the other associated features which allow you to collect a large amount of health data. This of course relies on a Premium subscription. I have had no issues with the side button which some users have and the display can be viewed clearly even in bright sunlight of which the inability to do this was one of the major niggles of the Charge 3. This device also works with the Cardiogram app which was a question I was unable to find the answer to until after I’d bought it, it’s not listed as supported on the app details and I couldn’t find the answer online. Even though it’s a large watch it’s comfortable to wear night and day. Cons. Battery life, battery life, did I mention battery life. How Fitbit can claim six days is quite beyond me. Bear in mind I’m not using the ‘battery draining’ features and I needed to recharge on day 3. I turned off the GPS which has to be done on the watch itself not within the Fitbit app, no change. I ran the snore detector for a few nights and realised what I had always suspected, I don’t really snore so I turned that off too but I’m still charging on day 3. Most of the charge seems to go overnight so I guess it’s all the extra data collection during sleep that’s doing it. I have noticed that the charger is quite fussy about where it’s plugged in and charges faster when connected straight into a USB port and not into a mains adapter. I didn’t like the strap supplied so bought a cheap and cheerful fabric one which is really comfortable. I do worry about the robustness of the screen as it’s quite big and vulnerable to knocks and most screen protectors seem to prevent some of the features from working. To sum up. This device does what I bought it for which is to provide health data. I did not buy it as a smart watch and had I done so I would have been disappointed. It has lots of really useful features but the one factor which really lets It down is the poor battery life. Even with lots of features unused it is still half of that advertised by Fitbit. I think it’s important to be realistic in your expectations of this device as in reality it’s not where Fitbit would like it to be (or advertise it to be) in terms of its performance especially with regard to realistic battery life. I’ve given four stars as it meets my expectations but taken one off for the battery life issue. Update. July 22. As predicted a couple of small chips on the edge of the watch face caused by knocking it accidentally against things. The charger which came with the Fitbit stopped working earlier this week. The cheap unbranded alternative from Amazon seems to charge the device much faster than the original did…. Update. September 23. I have finally dropped Fitbit and purchased a Garmin watch. Reasons as follows, Battery life on Fitbit is dreadful and getting worse. Continued issues with the charger failing and no resolution from Fitbit. Fitbit have issued an update which has completely ruined the layout of the app and which cannot be changed. In addition since the update my Sense has failed to track my sleep. Fitbit has been taken over by Google and the Fitbit app will soon be removed and Fitbit will only be accessible via Google. My Garmin device gives me everything that Fitbit did with the exception of ECG monitoring (which I suspect wasn’t very accurate anyway) and flights of steps but without any premium subscription which saves me £80 a year. Sorry Fitbit but it’s goodbye from me.

## Frequently Bought Together

- Fitbit Sense Advanced Smartwatch with Tools for Heart Health, Stress Management & Skin Temperature Trends, Carbon/Graphite, One Size (S & L Bands Included)
- Maledan Braided Stretchy Band Compatible for Fitbit Sense/Versa 3/4 and Sense 2, Soft Elastic Strap Bracelet Wrist Bands for Smart Watch, Accessory for Men and Women
- NANW 4-Pack Screen Protector Case Compatible with Fitbit Sense/Versa 3, Soft TPU Plated Bumper Full Cover Protective Cases for Sense Smartwatch [Scratch-Proof]

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*