Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Amazfit Stratos vs. Garmin Chronos vs. Polar Loop

 
Flex 2
Forerunner 935
Stratos
Chronos
Loop
 FitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowAmazfitStratosRemove Buy NowGarminChronosRemove Buy NowPolarLoopRemove Buy Now

Basic Info

Suggested Price$100$500$199$1500$100
Release20162017201820182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks5 days8 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240320 x 300218 x 218NA
Sizen/a1.2 inches1.34 inches1.2 inchesNA
Touchn/a
TypeLEDLCDOLEDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM10 ATM2 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryWear OSNA
Apps
Music

All Wearables