Fitbit Flex 2

Fitbit Flex 2
Brand: Fitbit
Category: Wearables
  • Screen 0.5 inch LED display with 5 indicator lights
  • Battery life up to 5 days
  • Water resistance 5 ATM
  • Sensors 3-axis accelerometer, vibration motor
  • Date October 2016



Physical size 12.7 x 10.2 mm (width/thickness)
Material The Fitbit Flex 2 wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Flex 2 also has a surgical-grade stainless steel clasp.
Charging USB
Battery Lithium-polymer
Battery life up to 5 days. Charge time (0-100%): Two hours.
Water resistance 5 ATM
Weight 36 grams
Display type LED display with 5 indicator lights
Display size 0.5 inch
Color options Black, Lavender, Magenta, Navy


Accelerometer Yes
Barometric altimeter No
Compass No
Galvanic skin response No
Geomagnetic No
Gyroscope No
Optical heart rate No
SpO2 No
Temperature No
Beidou No
Ambient light sensor No
Vibration motor Yes
Microphone No
Speakers No

Health & activity tracking

Steps Yes
Distance Yes
Calories burned Yes
Sports tracking Yes
Floors No
Sleep Yes
Heart rate No
Stress No
Blood oxygen No
Respiration rate No
UV exposure No
Skin temperature No
Hydration level No
Calorie intake No
Blood pressure No
Glucose No

Daily smart features

Smartphone notifications Yes
Smartphone music control No
On-board music storage No
Connected pay No
Cellular No
Connectivity Bluetooth
Operating system FitbitOS
Memory Saves 7 days of detailed motion data, minute by minute. Saves daily totals for the last 30 days.


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