Polar M400 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Motorola Moto 360 (1st Gen) vs. Garmin Vivosmart HR Plus

 
M400
Alta
Watch Series 2
Moto 360 (1st Gen)
Vivosmart HR Plus
 PolarM400Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowGarminVivosmart HR PlusRemove Buy Now

Basic Info

Suggested Price$200$130$269$150$179
Release20142016201620142017

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days18 hours1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a340 x 272 or 390 x 312320 x 260160 x 68
Sizen/an/a1.5 inches or 1.65 inches1.56 inches0.5 inches x 0.8 inches
Touchn/a
Typen/aOLEDAMOLEDLCDLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMn/a5ATMIP675 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWatch OSAndroid WearNA
Apps
MusicNA

All Wearables