Polar Loop 2 vs. Michael Kors Grayson vs. Pebble Time 2 vs. Fitbit Charge vs. Garmin Vivofit 4 vs. Michael Kors Grayson

 
Loop 2
Grayson
Time 2
Charge
Vivofit 4
Grayson
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowPebbleTime 2Remove Buy NowFitbitChargeRemove Buy NowGarminVivofit 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$350$199$130$79.95$350
Release201520182016201420182018

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours10 days7-10 days1 year24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NANA88 x 88453x454
Sizen/a1.39 inchesNANANA1.39 inches
TouchNA
TypeLEDAMOLEDe-paperOLEDNAAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM3 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearPebble OSNAAndroid Wear
Apps
Music

All Wearables