Samsung Gear S vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4 vs. Amazfit GTR

 
Gear S
Forerunner 45
Mi Band 4
GTR
 SamsungGear SRemove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$250$199$25$199
Release2013201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a7 days20 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution480 x 360208 x 208120x240454 x 454
Size2 inches1.04 inches0.95 inches1.39 inches
Touch
TypeSuper AMOLEDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenBuilt-inAMAZFIT OSBuild-in
Apps
Music

All Wearables