Polar A370 vs. Amazfit T-Rex vs. HTC re Grip

 
A370
T-Rex
re Grip
 PolarA370Remove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$179.95$140$199
Release201720192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 3 days20 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80360 x 360160 x 32
Size1.18 inches1.3 inches1.8 inches
Touch
TypeTFT LCDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemBuild-inNA
Apps
Music

All Wearables