Polar Loop 2 vs. Fitbit Charge HR vs. Fitbit Flex vs. Garmin Vivosmart 3 vs. Apple Series 6

 
Loop 2
Charge HR
Flex
Vivosmart 3
Series 6
 PolarLoop 2Remove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 3Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$120$150$100$139.99$399
Release20152015201320172020

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 days5 days5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA64 x 128384 x 480
Sizen/aNANANA40mm
TouchNANA
TypeLEDOLEDLEDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance2 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANAWatchOS 5
Apps
Music

All Wearables