Fitbit Charge 2
Quick details
Released
September 2016
Dimensions
21.3 mm wide
Operating system
Proprietary Fitbit firmware
Display 1.5 inch OLED Tap display
Battery life Up to 5 days
Water resistance Splash resistant; not for showering or swimming
GPS Connected GPS
Sensors 3-axis accelerometer, altimeter, optical heart-rate sensor, vibration motor; connected GPS via phone
Technical specifications
General
Release date 2016-09-26
Product type Fitness tracker
Physical size 21.3 mm wide
Weight 36 g
Material Flexible elastomer band; surgical-grade stainless steel buckle and frame
Water resistance Splash resistant; not for showering or swimming
Color options Classic: Black, Blue, Plum, Teal; Special Edition: Matte Black Gunmetal / Black, 22-karat plated Rose Gold / Lavender
Display type OLED tap display
Display size 1.5 inches
Display resolution 128 x 72 pixels
Display brightness Peak brightness not published
Battery Rechargeable lithium-polymer battery; 60 mAh
Battery life Up to 5 days
Charging USB clip charging cable
Charging time About 1-2 hours
Sensors
GNSS type Connected GPS
GPS Connected GPS
GALILEO No
GLONASS No
QZSS No
Beidou No
Accelerometer Yes
Gyroscope No
Barometric altimeter Yes
Compass No
Geomagnetic No
Ambient light sensor No
Optical heart rate Yes
Electrical heart rate No
SpO2 No
Temperature No
Galvanic skin response No
Microphone No
Speakers No
Vibration motor Yes
Health & activity tracking
Steps Yes
Distance Yes
Calories burned Yes
Floors Yes
Sports tracking Yes
Sleep Yes
Heart rate Yes
HRV No
Stress No
Blood oxygen No
Respiration rate No
Skin temperature No
ECG No
Blood pressure No
Body composition No
Glucose No
Hydration level No
UV exposure No
Calorie intake No
Daily Readiness No
Cardio Load No
Target Load No
Hyperglycemia risk assessment No
Arterial stiffness detection No
Pulse wave arrhythmia analysis No
Daily smart features
Smartphone compatibility Fitbit app on compatible Android/iOS phones
Operating system at launch Proprietary Fitbit firmware
Processor STMicroelectronics STM32L485JE, ARM Cortex-M4
Data retention 7 days detailed data; 30 days daily totals
Bluetooth Yes (4.0)
Wi-Fi No
NFC / connected pay No
UWB No
Cellular No
Smartphone notifications Yes
Bluetooth calling No
Smartphone music control No
On-board music storage No
Voice assistant No
Links
Affiliate link Amazon
Read more Fitbit Charge 2 review
These technical specs are correct to the best of our knowledge at the time of publishing.
