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Basic Info

Suggested Price $299 $250 $300 $150 $180
Release 2017 2016 2015 2015 2015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 4+ days 1 year 2-3 days 8 months 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a n/a
Mac n/a n/a n/a n/a
Windows n/a n/a n/a n/a

Connectivity

Bluetooth n/a
Cellular n/a
GPS n/a
NFC
Wi-Fi

Display

Color n/a
Resolution 348x250 n/a 360 x 360 n/a 128 x 88
Size 1.42 n/a 1.2 inches 1.3 inches 0.73 inches
Touch n/a
Type OLED n/a Super AMOLED Analog PMOLED

Functions

Audio Speaker Bluetooth
Clock
Phone n/a
Vibration n/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 50m 5 ATM IP68 5 ATM IP57

Notifications

Phone n/a
Emails n/a
Texts n/a

Software

Operating System Fitbit OS n/a Tizen n/a n/a
Apps
Music