Watch Style ZenWatch 2 Forerunner 225 Watch Vivofit 3
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Basic Info

Suggested Price $249 $150 $300 $349 $100
Release 2017 2016 2015 2015 2016

Activity & Fitness

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

Battery

Duration n/a 10 hours to 4 weeks n/a 1 year
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a
Mac n/a n/a n/a n/a
Windows n/a n/a n/a n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 360 x 360 320 x 320 180 x 180 400 x 400 64 x 64
Size 1.2 inches 1.63 inches or 1.45 inch 1 inch 1.4 inches 0.55 inches
Touch
Type P-OLED AMOLED n/a AMOLED n/a

Functions

Audio Speaker 22 n/a
Clock
Phone n/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance IP67 IP67 5 ATM n/a 5 ATM

Notifications

Phone n/a
Emails n/a n/a
Texts n/a n/a

Software

Operating System Android Wear 2 Android Wear n/a Android Wear n/a
Apps n/a
Music n/a n/a

All Wearables