Pebble Time vs. Polar M600 vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Polar A370 vs. Michael Kors Grayson

 
Time
M600
Grayson
Alta HR
A370
Grayson
 PebbleTimeRemove Buy NowPolarM600Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$330$350$150$179.95$350
Release201520162018201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days24 hours7 daysUp to 3 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144240 x 240453 x 454128 x 36160 x 80453x454
Size1.26 inches1.3 inches1.39 inches1.4 inches1.18 inches1.39 inches
Touchn/a
Typee-paperTFTAMOLEDOLEDTFT LCDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX81 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSAndroid WearAndroid WearAndroid Wear
Apps
Music

All Wearables