Polar Loop 2 vs. Garmin Forerunner 935 vs. Fitbit Charge vs. Garmin Forerunner 45 vs. Amazfit GTS

 
Loop 2
Forerunner 935
Charge
Forerunner 45
GTS
 PolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowFitbitChargeRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$120$500$130$199$150
Release20152017201420192019

Activity & Fitness

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

Battery

Duration8 days (without notifications)Up to 2 weeks7-10 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA208 x 208348 x 442
Sizen/a1.2 inchesNA1.04 inches1.65 inches
TouchNA
TypeLEDLCDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inWear OS
Apps
Music

All Wearables