Fitbit Alta vs. Polar Loop 2 vs. Amazfit Cor vs. Casio G-Shock GBA800 vs. Garmin Forerunner 45

 
Alta
Loop 2
Cor
G-Shock GBA800
Forerunner 45
 FitbitAltaRemove Buy NowPolarLoop 2Remove Buy NowAmazfitCorRemove Buy NowCasioG-Shock GBA800Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$130$120$79.99$120$199
Release20162015201820182019

Activity & Fitness

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

Battery

Duration5 days8 days (without notifications)12 days2 years7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a80 x 160208 x 208
Sizen/an/a1.23 inches1.04 inches
Touchn/a
TypeOLEDLEDIPS LCDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a2 ATM5 ATM20 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aBuilt-in
Apps
Music

All Wearables