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

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

Basic Info

Suggested Price$100$399$199$79.95$100
Release20162018201620182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day10 days1 year5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320NA88 x 88NA
Sizen/a1.32 inchesNANANA
Touchn/a
TypeLEDLCDe-paperNALED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM5 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSPebble OSNA
Apps
Music

All Wearables