Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Fitbit Charge 2 vs. Amazfit GTR vs. Apple Watch Ultra

 
Moto 360 (2nd Gen)
M400
Charge 2
GTR
Watch Ultra
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowFitbitCharge 2Remove Buy NowAmazfitGTRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$300$200$150$199$799
Release20152014201620192022

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 days5 days24 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/an/a454 x 454502x410 pixels
Size1.37 inches or 1.56 inchesn/an/a1.39 inches1.92 inches
Touchn/a
TypeLCDn/aOLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATMn/a5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/aBuild-inWatchOS 9
Apps
Musicn/a

All Wearables