Image of a Watch Series 2
Image of a M400
Image of a Flex 2
Image of a Charge 2
 AppleWatch Series 2Remove Buy NowPolarM400Remove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge 2Remove Buy Now

Basic Info

Suggested Price$269$200$100$150
Release2016201420162016

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/an/an/a
Size1.5 inches or 1.65 inchesn/an/an/a
Touchn/an/a
TypeAMOLEDn/aLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM3 ATM5 ATMn/a

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSn/an/an/a
Apps
Music

All Wearables