Image of a Watch Series 2
Image of a Alta
Image of a Vivomove
Image of a Loop 2
Image of a M400
 AppleWatch Series 2Remove Buy NowFitbitAltaRemove Buy NowGarminVivomoveRemove Buy NowPolarLoop 2Remove Buy NowPolarM400Remove Buy Now

Basic Info

Suggested Price$269$130$250$120$200
Release20162016201620152014

Activity & Fitness

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

Battery

Duration18 hours5 days1 year8 days (without notifications)8 hours to 30 days
Rechargeable

Compatibility

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

Connectivity

Bluetoothn/a
Cellular
GPS
NFC
Wi-Fi

Display

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

Functions

Audio SpeakerAlerts only
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATMn/a5 ATM2 ATM3 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating SystemWatch OSn/an/an/an/a
Apps
Music

All Wearables