Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Charge vs. Polar A370 vs. Amazfit Verge vs. Michael Kors Grayson

 
Loop 2
Grayson
Charge
A370
Verge
Grayson
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowPolarA370Remove Buy NowAmazfitVergeRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$350$130$179.95$160$350
Release201520182014201720192018

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours7-10 daysUp to 3 days5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NA160 x 80454x454453x454
Sizen/a1.39 inchesNA1.18 inches1.39 inches1.39 inches
TouchNA
TypeLEDAMOLEDOLEDTFT LCDOMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM1 ATMWR30IP681 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAMAZFIT OSAndroid Wear
Apps
Music

All Wearables