Pebble Classic vs. Casio WSD-F20A vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Polar Loop

 
Classic
WSD-F20A
645 Music
Vivofit 4
Loop
 PebbleClassicRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$99$399$450$79.95$100
Release20132018201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days1 day7 days1 year5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144320 x 320240 x 24088 x 88NA
Size1.26 inches1.32 inches1.2 inchesNANA
Touch
Typee-paperLCDMIPNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSWear OSNA
Apps
Music

All Wearables