Fitbit Sense
Quick details
Released
September 2020
Dimensions
40.48 x 40.48 x 12.35 mm
Operating system
FitbitOS
Display 1.58 inch colour AMOLED touchscreen
Battery life 6+ days; up to 12 hours with GPS
Water resistance 5 ATM
GPS Yes
Sensors 3-axis accelerometer, gyroscope, altimeter, GPS + GLONASS, multi-path optical heart rate, ECG/EDA electrical sensors, SpO2, skin temperature, ambient light, microphone, speaker, vibration motor, NFC
Technical specifications
General
Release date 2020-09
Product type Smartwatch
Physical size 40.48 x 40.48 x 12.35 mm
Weight 46 g
Material Anodized aluminium housing and buckle; flexible elastomer band
Water resistance 5 ATM
Color options Carbon / Graphite Stainless Steel, Lunar White / Soft Gold Stainless Steel, Sage Grey / Silver Stainless Steel
Display type Colour AMOLED touchscreen
Display size 1.58 inches
Display resolution 336 x 336 pixels
Display brightness Up to 1,000 nits
Display protection Corning Gorilla Glass 3
Battery Rechargeable lithium-polymer battery; 266 mAh
Battery life 6+ days; up to 12 hours with GPS
Charging Magnetic USB charging cable with fast charging
Charging time About 1-2 hours; 12 minutes for 1 day
Sensors
GNSS type Built-in GNSS
GPS Yes
GALILEO No
GLONASS Yes
QZSS No
Beidou No
Accelerometer Yes
Gyroscope Yes
Barometric altimeter Yes
Compass No
Geomagnetic No
Ambient light sensor Yes
Optical heart rate Yes
Electrical heart rate Yes
SpO2 Yes
Temperature Yes
Galvanic skin response Yes
Microphone Yes
Speakers Yes
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors Yes
Sports tracking 20+ Goal-Based Exercise Modes
Sleep Yes
Heart rate Yes
HRV Yes
Stress Yes
Blood oxygen Yes
Respiration rate Yes
Skin temperature Yes
ECG Yes
Blood pressure No
Body composition No
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Daily Readiness Yes
Cardio Load Yes
Target Load Yes
Hyperglycemia risk assessment No
Arterial stiffness detection No
Pulse wave arrhythmia analysis Yes
Daily smart features
Smartphone compatibility Fitbit app on compatible Android/iOS phones
Operating system at launch FitbitOS
Processor Fitbit FBT18SW ARM application processor
RAM 16 MB
Storage 4 GB internal
Data retention 7 days detailed data; 30 days daily totals
Bluetooth Yes (5.0)
Wi-Fi 2.4 GHz Wi-Fi; no 5 GHz
NFC / connected pay Yes
UWB No
Cellular No
Smartphone notifications Yes
Bluetooth calling Yes
Smartphone music control Yes
On-board music storage Yes (supported offline music apps)
Voice assistant Amazon Alexa
Links
These technical specs are correct to the best of our knowledge at the time of publishing.
