Samsung Gear S2 vs. Xiaomi Mi Band 2 vs. Casio WSD-F20A vs. Garmin 645 Music vs. Samsung Galaxy Watch

 
Gear S2
Mi Band 2
WSD-F20A
645 Music
Galaxy Watch
 SamsungGear S2Remove Buy NowXiaomiMi Band 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowSamsungGalaxy WatchRemove Buy Now

Basic Info

Suggested Price$300$23$399$450$330
Release20152016201820182018

Activity & Fitness

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

Battery

Duration2-3 days20 hours1 day7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/a320 x 320240 x 240360 x 360
Size1.2 inches0.42 inches1.32 inches1.2 inches1.2 inches or 1.3 inches
Touch
TypeSuper AMOLEDOLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aWear OSTizen OS
Apps
MusicSpotify

All Wearables