Samsung Gear S3 vs. Garmin Vivosmart 3 vs. Polar A370 vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
Gear S3
Vivosmart 3
A370
Inspire HR
T-Rex
 SamsungGear S3Remove Buy NowGarminVivosmart 3Remove Buy NowPolarA370Remove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$350$139.99$179.95$99$140
Release20162017201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleepn/a
Steps
Swim

Battery

Duration4 days5 daysUp to 3 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolution360 x 36064 x 128160 x 80139 x 60360 x 360
Size1.3 inchesNA1.18 inches1.4 inches1.3 inches
Touch
TypeFullcolor AODOLEDTFT LCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMWR305 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenFitbit OSBuild-in
Apps
Music

All Wearables