Olio Model One vs. Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Model One
Loop 2
Grayson
Charge
Grayson
Vivosmart 4
 OlioModel OneRemove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$595$120$350$130$350$130
Release201520152018201420182018

Activity & Fitness

Caloriesn/a
Cycling (Bicycling)n/a
Distancen/a
Heartn/an/a
Oxygenn/a
Sleepn/a
Stepsn/a
Swimn/a

Battery

Duration2 days8 days (without notifications)24 hours7-10 days24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPSn/a
NFCn/a
Wi-Fi

Display

Color
Resolutionn/an/a453 x 454NA453x45448 x 128
Sizen/an/a1.39 inchesNA1.39 inches0.74 inches
TouchNA
Typen/aLEDAMOLEDOLEDAMOLEDOLED

Functions

Audio Speakern/a
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometern/a
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance5 ATM2 ATM1 ATM1 ATM1 ATM5 ATM

Notifications

Phonen/a
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAAndroid Wear
Appsn/a
Music

All Wearables