Polar Loop vs. Diesel On Full Guard 2.5 vs. Amazfit T-Rex vs. HTC re Grip vs. Apple Watch 8

 
Loop
On Full Guard 2.5
T-Rex
re Grip
Watch 8
 PolarLoopRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$325$140$199$499
Release20132018201920202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4 days20 days5 hours to 2.5 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA454x454360 x 360160 x 32340 x 272 or 390 x 312
SizeNA1.39 inches1.3 inches1.8 inches1.5 inches or 1.65 inches
Touch
TypeLEDAMOLEDPMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM3 ATM5 ATMIP575 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSBuild-inNAWatchOS 9
Apps
Music

All Wearables