Olio Model One vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Pebble Core vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Model One
Grayson
Alta HR
Core
Grayson
T-Rex
 OlioModel OneRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowPebbleCoreRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$595$350$150$99$350$140
Release201520182017201620182019

Activity & Fitness

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

Battery

Duration2 days24 hours7 daysNA24 hours20 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPSn/a
NFCn/a
Wi-Fi

Display

Color
Resolutionn/a453 x 454128 x 36NA453x454360 x 360
Sizen/a1.39 inches1.4 inchesNA1.39 inches1.3 inches
TouchNA
Typen/aAMOLEDOLEDNAAMOLEDAMOLED

Functions

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

Hardware

Accelerometern/aNA
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNA1 ATM5 ATM

Notifications

Phonen/aNA
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNAAndroid WearBuild-in
Appsn/a
Music

All Wearables