Fitbit One vs. Polar Loop 2 vs. Casio WSD-F20A vs. MobVoi TicWatch Pro vs. Amazfit T-Rex

 
One
Loop 2
WSD-F20A
TicWatch Pro
T-Rex
 FitbitOneRemove Buy NowPolarLoop 2Remove Buy NowCasioWSD-F20ARemove Buy NowMobVoiTicWatch ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$120$399$300$140
Release20122015201820182019

Activity & Fitness

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

Battery

Duration10-14 days8 days (without notifications)1 day30 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 320400 x 400360 x 360
Sizen/an/a1.32 inches1.4 inches1.3 inches
Touch
TypeOLEDLEDLCDOLED/FSTNAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant2 ATM5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSWear OSBuild-in
Apps
Music

All Wearables