Watch Series 2 Watch M600 Alta Flash
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Basic Info

Suggested Price $269 $349 $330 $130 $30
Release 2016 2015 2016 2016 2014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 18 hours n/a 2 days 5 days 6 months
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color n/a
Resolution 340 x 272 or 390 x 312 400 x 400 240 x 240 n/a n/a
Size 1.5 inches or 1.65 inches 1.4 inches 1.3 inches n/a n/a
Touch n/a n/a n/a
Type AMOLED AMOLED TFT OLED n/a

Functions

Audio Speaker n/a Alerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5ATM n/a IPX8 n/a 3 ATM

Notifications

Phone
Emails n/a
Texts

Software

Operating System Watch OS Android Wear Android Wear n/a n/a
Apps
Music n/a

All Wearables