Polar V800 vs. Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
V800
Loop 2
Grayson
Alta HR
Grayson
Vivosmart 4
 PolarV800Remove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$470$120$350$150$350$130
Release201420152018201720182018

Activity & Fitness

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

Battery

Duration13 hours to 30 days8 days (without notifications)24 hours7 days24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a453 x 454128 x 36453x45448 x 128
Sizen/an/a1.39 inches1.4 inches1.39 inches0.74 inches
Touch
Typen/aLEDAMOLEDOLEDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearAndroid Wear
Apps
Music

All Wearables