Polar M400 vs. Apple Watch Series 2 vs. Motorola Moto 360 (1st Gen) vs. Fitbit Flex vs. Pebble Core

 
M400
Watch Series 2
Moto 360 (1st Gen)
Flex
Core
 PolarM400Remove Buy NowAppleWatch Series 2Remove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy Now

Basic Info

Suggested Price$200$269$150$100$99
Release20142016201420132016

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours1 day5 daysNA
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312320 x 260NANA
Sizen/a1.5 inches or 1.65 inches1.56 inchesNANA
TouchNANA
Typen/aAMOLEDLCDLEDNA

Functions

Audio SpeakerAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5ATMIP671 ATMNA

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aWatch OSAndroid WearNANA
Apps
MusicNA

All Wearables