Withings Activite Sapphire vs. Fitbit Charge 2 vs. Withings Go vs. Polar Loop

 
Activite Sapphire
Charge 2
Go
Loop
 WithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowWithingsGoRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$450$150$80$100
Release2014201620162013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration8 months5 days8 months5 days
Rechargeable

Compatibility

Androidn/a
iOSn/a
Windows Phonen/an/aNA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/aNA
Size1.3 inchesn/an/aNA
Touchn/an/a
TypeAnalogOLEDE-InkLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM2 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/an/aNA
Appsn/a
Music

All Wearables