Watch Series 2 Forerunner 225 Watch Alta Explorist
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Basic Info

Suggested Price $269 $300 $349 $130 $255
Release 2016 2015 2015 2016 2018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 18 hours 10 hours to 4 weeks n/a 5 days 24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 340 x 272 or 390 x 312 180 x 180 400 x 400 n/a 454 x454
Size 1.5 inches or 1.65 inches 1 inch 1.4 inches n/a 1.4 inches
Touch n/a
Type AMOLED n/a AMOLED OLED AMOLED

Functions

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

Hardware

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

Notifications

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

Software

Operating System Watch OS n/a Android Wear n/a Wear OS
Apps n/a
Music n/a n/a

All Wearables