Polar Loop 2 vs. Garmin Forerunner 935 vs. Garmin Chronos vs. Fitbit Alta HR vs. Apple Series 6

 
Loop 2
Forerunner 935
Chronos
Alta HR
Series 6
 PolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowGarminChronosRemove Buy NowFitbitAlta HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$120$500$1500$150$399
Release20152017201820172020

Activity & Fitness

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

Battery

Duration8 days (without notifications)Up to 2 weeks8 days7 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240218 x 218128 x 36384 x 480
Sizen/a1.2 inches1.2 inches1.4 inches40mm
Touch
TypeLEDLCDMIPOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance2 ATM5 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 5
Apps
Music

All Wearables