Samsung Gear S2 vs. Xiaomi Mi Band 2 vs. Polar M430 vs. Casio G-Shock GBA800 vs. Garmin 645 Music

 
Gear S2
Mi Band 2
M430
G-Shock GBA800
645 Music
 SamsungGear S2Remove Buy NowXiaomiMi Band 2Remove Buy NowPolarM430Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$300$23$255$120$450
Release20152016201720182018

Activity & Fitness

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

Battery

Duration2-3 days20 hours30 hours2 years7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a128x128240 x 240
Size1.2 inches0.42 inches1.4 inch1.2 inches
Touch
TypeSuper AMOLEDOLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP67WR3020 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/a
Apps
Music

All Wearables