Fitbit One vs. Casio WSD-F20A vs. Garmin 645 Music vs. Mobvoi TicWatch C2 vs. Amazfit T-Rex

 
One
WSD-F20A
645 Music
TicWatch C2
T-Rex
 FitbitOneRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowMobvoiTicWatch C2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$399$450$200$140
Release20122018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days1 day7 days2 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320240 x 240360 x 360360 x 360
Sizen/a1.32 inches1.2 inches1.3 inches1.3 inches
Touch
TypeOLEDLCDMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5 ATM5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWear OSBuild-in
Apps
Music

All Wearables