Samsung Gear S2 vs. Huawei Watch 2 vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4 vs. Amazfit GTR

 
Gear S2
Watch 2
Forerunner 45
Mi Band 4
GTR
 SamsungGear S2Remove Buy NowHuaweiWatch 2Remove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$300$350$199$25$199
Release20152017201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days48 hours7 days20 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360480 x 480208 x 208120x240454 x 454
Size1.2 inches1.38 inches1.04 inches0.95 inches1.39 inches
Touch
TypeSuper AMOLEDP-OLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenAndroid Wear 2Built-inAMAZFIT OSBuild-in
Apps
Music

All Wearables