Pebble Time vs. Withings Activite Sapphire vs. Fitbit Flex 2 vs. Casio WSD-F20A vs. Polar Loop

 
Time
Activite Sapphire
Flex 2
WSD-F20A
Loop
 PebbleTimeRemove Buy NowWithingsActivite SapphireRemove Buy NowFitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$150$450$100$399$100
Release20152014201620182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days8 months5 days1 day5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution168 x 144n/an/a320 x 320NA
Size1.26 inches1.3 inchesn/a1.32 inchesNA
Touchn/a
Typee-paperAnalogLEDLCDLED

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/an/aWear OSNA
Apps
Music

All Wearables