Samsung Gear S2 vs. Xiaomi Mi Band 2 vs. Polar M430 vs. Garmin 645 Music vs. Xiaomi Mi Band

 
Gear S2
Mi Band 2
M430
645 Music
Mi Band
 SamsungGear S2Remove Buy NowXiaomiMi Band 2Remove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy NowXiaomiMi BandRemove Buy Now

Basic Info

Suggested Price$300$23$255$450$15
Release20152016201720182015

Activity & Fitness

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

Battery

Duration2-3 days20 hours30 hours7 days30 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

ColorNA
Resolution360 x 360n/a128x128240 x 240NA
Size1.2 inches0.42 inches1.4 inch1.2 inchesNA
TouchNA
TypeSuper AMOLEDOLEDLCDMIPNA

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP67WR305 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aNA
Apps
Music

All Wearables