Fitbit Surge vs. Pebble Time Round vs. Polar M400 vs. Michael Kors Grayson vs. Sony SmartBand vs. Michael Kors Grayson

 
Surge
Time Round
M400
Grayson
SmartBand
Grayson
 FitbitSurgeRemove Buy NowPebbleTime RoundRemove Buy NowPolarM400Remove Buy NowMichael KorsGraysonRemove Buy NowSonySmartBandRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$250$200$200$350$100$350
Release201620152014201820142018

Activity & Fitness

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

Battery

Duration7 days2 days8 hours to 30 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/an/an/a453 x 454NA453x454
Size1.26 inchesroundn/a1.39 inchesNA1.39 inches
TouchNA
TypeMonochrome LCDe-papern/aAMOLEDNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX73 ATM1 ATMIP581 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aPebble OSn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables