Pebble Time vs. Pebble Time Round vs. Fitbit Charge 2 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Time
Time Round
Charge 2
Grayson
Grayson
Vivosmart 4
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowFitbitCharge 2Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$200$150$350$350$130
Release201520152016201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days5 days24 hours24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/an/a453 x 454453x45448 x 128
Size1.26 inchesroundn/a1.39 inches1.39 inches0.74 inches
Touchn/a
Typee-papere-paperOLEDAMOLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX7n/a1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSn/aAndroid WearAndroid Wear
Apps
Music

All Wearables