| key specs |
| Strap Colour | Carbon, Lunar White | Black, Blue, Black Red, Black Mesh, Rose Gold Mesh |
| Compatible OS | Android, iOS | Android, iOS |
| Dial Shape | Square | - |
| Display Type | AMOLED | - |
| Ideal For | Unisex | Unisex |
| Display Size | - | 35mm |
| Strap Material | - | Silicone |
| general |
| Brand | Fitbit | TIMEX |
| Model | Sense | Fit |
| Release date | August 25, 2020 | April 12, 2021 |
| Model Name | Sense | - |
| Dial Shape | Square | - |
| Size | Regular | Regular |
| Touchscreen | Yes | - |
| Water Resistant | Yes | - |
| Water Resistance Depth | 50 meters | 1 |
| Ideal For | Unisex | Unisex |
| Strap Colour | Carbon, Lunar White | Black, Blue, Black Red, Black Mesh, Rose Gold Mesh |
| Strap Material | - | Silicone |
| Dial Material | - | Plastic |
| Dial Colour | - | Black |
| product details |
| Sensor | Multi-path optical heart rate sensor, Multipurpose electrical sensors compatible with EDA Scan app, Gyroscope, Altimeter, 3-axis accelerometer, Skin temperature sensor, Ambient light sensor | - |
| Compatible Device | Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later | - |
| Battery Type | Lithium-polymer | - |
| Battery Life | Around 6 days | 6 |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5 | - |
| Wi-Fi | Yes | - |
| GPS | Yes | - |
| Other Connectivity Features | NFC | - |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| camera and display features |
| Display Type | AMOLED | - |
| Display Size | - | 35mm |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | - |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |