Polar Loop 2 vs. Mobvoi TicWatch e2 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex vs. Apple Watch 8

 
Loop 2
TicWatch e2
Vivosmart 4
T-Rex
Watch 8
 PolarLoop 2Remove Buy NowMobvoiTicWatch e2Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$120$200$130$140$499
Release20152019201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)1 day7 days20 days18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 36048 x 128360 x 360340 x 272 or 390 x 312
Sizen/a1.2 inches0.74 inches1.3 inches1.5 inches or 1.65 inches
Touch
TypeLEDAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuild-inWatchOS 9
Apps
Music

All Wearables