Image of a Watch Series 2
Image of a Activite Sapphire
Image of a Zip
Image of a Watch
Image of a Charge
 AppleWatch Series 2Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitZipRemove Buy NowAppleWatchRemove Buy NowFitbitChargeRemove Buy Now

Basic Info

Suggested Price$269$450$60$349$130
Release20162014201220152014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours8 months6 months18 hours7-10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/an/a340 x 272 or 390 x 312NA
Size1.5 inches or 1.65 inches1.3 inchesn/a1.5 inches or 1.65 inchesNA
TouchNA
TypeAMOLEDAnalogn/aAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM5 ATMSplash ResistantIPX71 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSn/an/aWatch OSNA
Apps
Music

All Wearables