Apple Watch Series 3 vs. Polar M400 vs. Polar Loop 2 vs. Fitbit Alta HR vs. Garmin Vivosmart HR Plus

 
Watch Series 3
M400
Loop 2
Alta HR
Vivosmart HR Plus
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowPolarLoop 2Remove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart HR PlusRemove Buy Now

Basic Info

Suggested Price$329$200$120$150$179
Release20172014201520172017

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days8 days (without notifications)7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/an/a128 x 36160 x 68
Size1.5 inches or 1.65 inchesn/an/a1.4 inches0.5 inches x 0.8 inches
Touch
TypeAMOLEDn/aLEDOLEDLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/an/aNA
Apps
Music

All Wearables