Polar Loop 2 vs. Casio G-Shock GBA800 vs. Garmin Forerunner 235 vs. Garmin Vivosmart 4 vs. Amazfit GTS

 
Loop 2
G-Shock GBA800
Forerunner 235
Vivosmart 4
GTS
 PolarLoop 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarminForerunner 235Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$120$120$299.99$130$150
Release20152018201720182019

Activity & Fitness

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

Battery

Duration8 days (without notifications)2 years9 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 18048 x 128348 x 442
Sizen/a1.23 inches0.74 inches1.65 inches
Touch
TypeLEDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM20 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OS
Apps
Music

All Wearables