Polar Loop 2 vs. Amazfit Bip vs. Asus ZenWatch vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Michael Kors Grayson

 
Loop 2
Bip
ZenWatch
Grayson
Charge HR
Grayson
 PolarLoop 2Remove Buy NowAmazfitBipRemove Buy NowAsusZenWatchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$99.99$150$350$150$350
Release201520182014201820152018

Activity & Fitness

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

Battery

Duration8 days (without notifications)30 daysNA24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a176 x 176320 x 320453 x 454NA453x454
Sizen/a1.28 inches1.63 inches1.39 inchesNA1.39 inches
TouchNA
TypeLEDNAAMOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP68IP551 ATM1 ATM1 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearAndroid WearNAAndroid Wear
Apps
Music

All Wearables