Fitbit Flex 2 vs. Amazfit Cor vs. Casio WSD-F20A vs. Garmin 645 Music vs. Amazfit Verge

 
Flex 2
Cor
WSD-F20A
645 Music
Verge
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowAmazfitVergeRemove Buy Now

Basic Info

Suggested Price$100$79.99$399$450$160
Release20162018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days1 day7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160320 x 320240 x 240454x454
Sizen/a1.23 inches1.32 inches1.2 inches1.39 inches
Touchn/a
TypeLEDIPS LCDLCDMIPOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATMIP68

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAMAZFIT OS
Apps
Music

All Wearables