Fitbit Sense GPS Smartwatch (Lunar White / Soft Gold Stainless Steel)

Model: FB512GLWT

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MSRP: $249.95 ?


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Band Material Silicone
Case Materials Aluminum
Watch Crystal Material Corning Gorilla Glass 3
Wrist Size Fits wrists 5.5 to 8.7" / 14 to 22.1 cm
Water Rating 5 ATM

Packaging Info

Package Weight 0.45 lb
Box Dimensions (LxWxH) 6 x 3.6 x 2.6"


Watch Operating System Proprietary OS
Compatible Operating System iOS 12.2 and later
Android 7.0 and later
Sensors Accelerometer, Altimeter, Gyroscope, Heart Rate, Light Sensor
Activity Tracker Yes
Microphone Yes
Built-In Speaker Yes
Vibration Yes


Dial Shape Rectangle
Display Technology OLED
Dial Type Digital


Connectivity Bluetooth, Wi-Fi, NFC
Bluetooth Protocol Bluetooth LE
Wireless Range 30' / 9 m
Wi-Fi Standard Wi-Fi 4 (802.11n)
Bluetooth 5.0


Battery Life Normal Use: Up to 6 days
Battery Type Lithium-ion polymer
Expert Reviews
Pc magazine.34972991
22 September 2020

Fitbit's premium, pricey Sense smartwatch puts a focus on your well-being with the ability to measure and monitor your stress, heart rhythm, skin temperature variation, and blood oxygen saturation.

  • +

    Attractive design with large, always-on color display, Excellent battery life, Measures blood oxygen level, Features an ECG app, Robust stress management and sleep tracking features, Supports Amazon Alexa, Fitbit Pay, Spotify

  • -

    Expensive, Touch screen responsiveness could be better, Band release latch can be accidentally triggered, Small third-party app selection

The verge.34207446
22 September 2020

When Fitbit announced the $329.95 Sense last month, it was being hyped as the company’s most-thorough health tracking device yet. With new features in the form of stress management (with electrodermal activity monitoring), skin temperature, oxygen saturation while you sleep, and an upcoming Food and...

  • +

    Sleek design, Bright, colorful screen, Intuitive interface, A ton of granular metrics, including SpO2, heart rate variability, breath rate, skin temp, and EDA, Nice integration with mindfulness training

  • -

    Lots of bugs and performance hiccups, Solid-state button is fiddly, Some things just don’t feel as fully integrated as they could be, Battery life is cut in half if you turn the display to always-on mode

Android police.34750375
5 December 2020

In the era before modern smartwatches, Fitbit's name became synonymous with wearable fitness trackers. Full-fledged smartwatches have become the norm as consumers have demanded more and more from wearables, and Fitbit stepped in with the Ionic and Versa smartwatches a few years ago.

  • +

    DisplayIt's sharp enough, gets bright outdoors, and Fitbit does a good job of hiding the bezels., Meaningful Fitbit OS improvementsMore reliable notifications, better shortcuts, always-on display, and more., BatteryThe Sense lasts the better part of a week (without always-on display).

  • -

    SensorsThe EDA and SpO2 sensors are annoying to use, and I don't know that I believe the numbers., MusicMusic storage only with Deezer and Pandora Plus, controlling playback on a phone requires extra steps., The "solid state" buttonIt's so much less easy to use than a real button.

22 September 2020

It's been three years since I first tested the Fibit Ionic and while it was a solid fitness watch, it didn't do well with consistently functioning as a GPS sports watch. For the past couple of weeks I've been testing Fitbit's latest watch with GPS, the Fitbit Sense .

  • +

    Superb fit, finish, and design, Bright and clear AMOLED display, Lightweight and comfortable for 24/7 wear, Extensive health tracking capability, Smart alarm, Various health scores for understanding progress

  • -

    No support for offline Spotify music, Basic data for exercise tracking, Swipes on the display don't always register, Solid state button is not as reliable as a physical button

6 October 2020

The Fitbit Sense is a big leap forward as a health watch, one that produces a lot of data but perhaps fewer insights. It’s the right device for these strange times. If you’re comfortable with that approach, then there’s a lot to like here.

  • +

    Health data galore, Stress and mindfulness, We love temperature tracking

Mobile syrup.34296000
22 September 2020

Software kinks aside, the Fitbit Sense is a great smartwatch at a solid price.

  • +

    Great design, Excellent health tracking features, Solid display

  • -

    Sometimes frustrating app, Battery life could be better, Charging cable is too short

New atlas.34755561
3 March 2021

The Fitbit Sense is the flagship device in the Fitbit range, the top device from one of the top names in wearables – and we've had one strapped to our wrist for the past couple of weeks to try and figure out whether or not it's worth the US$299.95 that you'll have to pay to get hold of one.

Tech crunch.34750907
24 September 2020

The Versa helped Fitbit reverse its fortunes after a long, gradual slide. The company was slow to embrace the smartwatch, and stumbled somewhat out of the gate with the Ionic. But the Versa found a perfect sweet spot that build atop generations of wearable health knowhow, key acquisitions like...

22 September 2020

There’s no question Fitbit has packed in ‘all the sensors’ to the Fitbit Sense. The challenge is whether or not all that data is usable and actionable. And at this point I’m just not seeing that occurring yet.

Android authority.32834153
31 January 2021

The Fitbit Sense delivers on the basics, but it's clear some features need more work....

  • +

    High-end, premium design Improved quick-release straps (Mostly) accurate GPS and heart rate sensors Skin temp sensor provides useful data Detailed sleep tracking ~6-day battery life

  • -

    Bad inductive button EDA and ECG sensors needs refining Fitbit OS still needs work

User Reviews
17 November 2020

I bought my first Sense a couple of months ago and love it! I've been a Fitbit fan for a while, now. I had an Ion before, but the Sense is a little bit sleeker and not so bulky. I did scope out the reviews pinning the Sense up against the Apple watch and found them both to be similar in features.

2 November 2020

Very easy to set up. The GPS activated very quickly, the extra health monitoring options are useful, the core stats on watch are a great extra so one doesn’t have to look at the phone if one wants a quick review...etc. per my wife.

18 October 2020

I like the look of the Sense. I don't like that it doesn't show your battery life. I had a day where it would track my steps then drop down to 2,623 steps everytime I would sync my sense. Not sure if it worked itself out after 24hrs or if it was fixed on fitbits end.

3 weeks ago

I had a Fitbit, then changed to a Galaxy smart watch. I'm back with a Fitbit now, and couldn't be more pleased. Everything about it is exactly in line with how I need to use it. It's super easy to use, and the battery lasts for days!

11 January 2021

Bought this a few weeks ago. Love the watch, it is better than a versa 2 but still has similar features. Now the band I like that it helps it stay on but I don't like it because when washing your hands water gets under and stays where it clasps on and irritates the skin.

20 January 2021

I mainly bought this as an upgrade to the Inspire HR I purchased from The Exchange earlier in the year. The feature I most like and is most helpful for me is sleep monitoring. I actually believe that my sleep habits have improved because of this.

23 February 2021

I think this watch is great I use all functions it was a nightmare to get it set up but all I have ever gotten are but once it's done it works great, alexa works great awnsering phone calls is nice the health info is exceptional, u learn alot from the data I am premium member for awhile my versa 1...

22 November 2020

If you're looking for a wearable that does everything your smartphone can do you need to look elsewhere. This is not the ideal interface for that. But if you're looking for a superior health and fitness wearable then this is for you.

25 December 2020

I have had my sense for 2 months. I have loved it, the sleek designed and new features of the watch are awesome. But this last 4 days I have had to charge my battery 3 times. It hardly will last a charge for 24 hours.

2 December 2020

While the Sense may not do everything the Apple Watch does, it is still a very good smart watch at a better price. It IS better at health and Fitness information than Apple Watch in my opinion and is “dressier” too. It’s extremely comfortable and the battery life can’t be matched

Product Highlights
  • Up to 6 Days of Battery Life
  • Built-In GPS Tracking
  • Heart Rate Monitoring
  • On-Wrist Skin Temperature Sensor
  • Built-In AMOLED Display
  • Stress Detection & Tracking
  • Swimproof Construction
  • Female Health Tracking
  • SmartTrack Automatic Activity Detection
  • Call, Text & App Notifications
Average Expert Score
Average User Score
In The Box
  • Fitbit Sense GPS Smartwatch (Lunar White / Soft Gold Stainless Steel)
  • Small Classic Wristband
  • Large Classic Wristband
  • Charging Cable
  • Limited 1-Year Warranty
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