Pebble Time Round vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Fitbit Flex vs. Polar Loop

 
Time Round
Activite Sapphire
Charge 2
Flex
Loop
 PebbleTime RoundRemove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$200$450$150$100$100
Release20152014201620132013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 days5 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/aNANA
Sizeround1.3 inchesn/aNANA
Touchn/aNA
Typee-paperAnalogOLEDLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATMn/a1 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/aNANA
Apps
Music

All Wearables