Pebble Time Round vs. Fitbit Alta vs. Michael Kors Grayson vs. Pebble Core vs. Garmin Forerunner 45 vs. Michael Kors Grayson

 
Time Round
Alta
Grayson
Core
Forerunner 45
Grayson
 PebbleTime RoundRemove Buy NowFitbitAltaRemove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$130$350$99$199$350
Release201520162018201620192018

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration2 days5 days24 hoursNA7 days24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a453 x 454NA208 x 208453x454
Sizeroundn/a1.39 inchesNA1.04 inches1.39 inches
Touchn/aNA
Typee-paperOLEDAMOLEDNALCDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX7n/a1 ATMNA5 ATM1 ATM

Notifications

PhoneNA
Emailsn/aNA
TextsNA

Software

Operating SystemPebble OSn/aAndroid WearNABuilt-inAndroid Wear
Apps
Music

All Wearables