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Basic Info

Suggested Price $599.99 $350 $180 $170 $23
Release 2017 2016 2016 2015 2016

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps n/a
Swim

Battery

Duration Up to 9 days n/a 25 days 5 days 20 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 218x 218 n/a n/a 160 x 68 n/a
Size 1.1 inches n/a n/a 1.08 inches 0.42 inches
Touch
Type na n/a n/a n/a OLED

Functions

Audio Speaker Bluetooth
Clock
Phone n/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 10ATM 5 ATM 5 ATM 5 ATM IP67

Notifications

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

Software

Operating System n/a n/a n/a n/a
Apps
Music