Fitbit Flex 2 vs. Michael Kors Grayson vs. Polar A370 vs. Michael Kors Access Sofie HR vs. Michael Kors Grayson vs. Amazfit GTS

 
Flex 2
Grayson
A370
Access Sofie HR
Grayson
GTS
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowPolarA370Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$350$179.95$395$350$150
Release201620182017201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hoursUp to 3 days2 days24 hours14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454160 x 80390 x 390453x454348 x 442
Sizen/a1.39 inches1.18 inches1.19 inches1.39 inches1.65 inches
Touchn/a
TypeLEDAMOLEDTFT LCDOMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMWR300.3 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OSAndroid WearWear OS
Apps
Music

All Wearables