Fitbit Flex 2 vs. Withings Go vs. Polar A370 vs. Polar Loop vs. Michael Kors Access Runway

 
Flex 2
Go
A370
Loop
Access Runway
 FitbitFlex 2Remove Buy NowWithingsGoRemove Buy NowPolarA370Remove Buy NowPolarLoopRemove Buy NowMichael KorsAccess RunwayRemove Buy Now

Basic Info

Suggested Price$100$80$179.95$100$350
Release20162016201720132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days8 monthsUp to 3 days5 days1 day
Rechargeable

Compatibility

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

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/a160 x 80NA390 x 390
Sizen/an/a1.18 inchesNA1.19 inches
Touchn/an/a
TypeLEDE-InkTFT LCDLEDAMOLED

Functions

Audio Speaker
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMWR302 ATM3 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aNAWear OS
Appsn/a
Music

All Wearables