Pebble Time vs. Pebble Time Steel vs. Polar M400 vs. Polar Loop 2 vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Time
Time Steel
M400
Loop 2
Grayson
Grayson
 PebbleTimeRemove Buy NowPebbleTime SteelRemove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$250$200$120$350$350
Release201520152014201520182018

Activity & Fitness

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

Battery

Duration7 days10 days8 hours to 30 days8 days (without notifications)24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144168 x 144n/an/a453 x 454453x454
Size1.26 inches1.26 inchesn/an/a1.39 inches1.39 inches
Touch
Typee-papere-papern/aLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM2 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSn/an/aAndroid WearAndroid Wear
Apps
Music

All Wearables