Fitbit One vs. Polar Loop 2 vs. Amazfit Cor vs. Diesel On Full Guard 2.5 vs. Garmin Vivosmart 4

 
One
Loop 2
Cor
On Full Guard 2.5
Vivosmart 4
 FitbitOneRemove Buy NowPolarLoop 2Remove Buy NowAmazfitCorRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$100$120$79.99$325$130
Release20122015201820182018

Activity & Fitness

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

Battery

Duration10-14 days8 days (without notifications)12 days4 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a80 x 160454x45448 x 128
Sizen/an/a1.23 inches1.39 inches0.74 inches
Touch
TypeOLEDLEDIPS LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant2 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OS
Apps
Music

All Wearables