Pebble Time vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Garmin Vivofit 4 vs. Polar Loop

 
Time
Flex 2
WSD-F20A
Vivofit 4
Loop
 PebbleTimeRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowGarminVivofit 4Remove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$150$100$399$79.95$100
Release20152016201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days1 day1 year5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144n/a320 x 32088 x 88NA
Size1.26 inchesn/a1.32 inchesNANA
Touchn/a
Typee-paperLEDLCDNALED

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 OSn/aWear OSNA
Apps
Music

All Wearables