Samsung Gear S2 vs. Fitbit Alta vs. Garmin 645 Music vs. Xiaomi Mi Band vs. Michael Kors Access Sofie HR

 
Gear S2
Alta
645 Music
Mi Band
Access Sofie HR
 SamsungGear S2Remove Buy NowFitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowXiaomiMi BandRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$300$130$450$15$395
Release20152016201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days7 days30 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

ColorNA
Resolution360 x 360n/a240 x 240NA390 x 390
Size1.2 inchesn/a1.2 inchesNA1.19 inches
Touchn/aNA
TypeSuper AMOLEDOLEDMIPNAOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a5 ATMIP670.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemTizenn/aNAWear OS
Apps
Music

All Wearables