Fitbit Surge vs. Polar M400 vs. Xiaomi Mi Band 2 vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Surge
M400
Mi Band 2
Grayson
Grayson
 FitbitSurgeRemove Buy NowPolarM400Remove Buy NowXiaomiMi Band 2Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$250$200$23$350$350
Release20162014201620182018

Activity & Fitness

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

Battery

Duration7 days8 hours to 30 days20 hours24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a453 x 454453x454
Size1.26 inchesn/a0.42 inches1.39 inches1.39 inches
Touch
TypeMonochrome LCDn/aOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIP671 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid WearAndroid Wear
Apps
Music

All Wearables