Polar Loop 2 vs. Amazfit Stratos vs. Fitbit Versa vs. Garmin Chronos vs. Fitbit Flex

 
Loop 2
Stratos
Versa
Chronos
Flex
 PolarLoop 2Remove Buy NowAmazfitStratosRemove Buy NowFitbitVersaRemove Buy NowGarminChronosRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$120$199$199.99$1500$100
Release20152018201820182013

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 days4 days8 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300300 x300218 x 218NA
Sizen/a1.34 inches1.34 inches1.2 inchesNA
TouchNA
TypeLEDOLEDOLEDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM5 ATM10 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryWear OSNA
Apps
Music

All Wearables