Olio Model One vs. Fitbit Alta HR vs. Garmin Vivosmart 3 vs. Amazfit T-Rex

 
Model One
Alta HR
Vivosmart 3
T-Rex
 OlioModel OneRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$595$150$139.99$140
Release2015201720172019

Activity & Fitness

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

Battery

Duration2 days7 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPSn/a
NFCn/a
Wi-Fi

Display

Color
Resolutionn/a128 x 3664 x 128360 x 360
Sizen/a1.4 inchesNA1.3 inches
Touch
Typen/aOLEDOLEDAMOLED

Functions

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

Hardware

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

Notifications

Phonen/a
Emails
Texts

Software

Operating Systemn/aBuild-in
Appsn/a
Music

All Wearables