Polar Loop 2 vs. Withings Go vs. Fitbit Charge vs. Fitbit Charge HR vs. Garmin Vivofit 4

 
Loop 2
Go
Charge
Charge HR
Vivofit 4
 PolarLoop 2Remove Buy NowWithingsGoRemove Buy NowFitbitChargeRemove Buy NowFitbitCharge HRRemove Buy NowGarminVivofit 4Remove Buy Now

Basic Info

Suggested Price$120$80$130$150$79.95
Release20152016201420152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)8 months7-10 days5 days1 year
Rechargeable

Compatibility

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

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNANA88 x 88
Sizen/an/aNANANA
Touchn/aNANA
TypeLEDE-InkOLEDOLEDNA

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM1 ATM1 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNANA
Appsn/a
Music

All Wearables