Forerunner 225 Vivomove Gear S2 Alta Talkband B2
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Basic Info

Suggested Price $300 $250 $300 $130 $180
Release 2015 2016 2015 2016 2015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 10 hours to 4 weeks 1 year 2-3 days 5 days 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a 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 n/a
Cellular n/a
GPS n/a
NFC
Wi-Fi

Display

Color n/a
Resolution 180 x 180 n/a 360 x 360 n/a 128 x 88
Size 1 inch n/a 1.2 inches n/a 0.73 inches
Touch n/a n/a
Type n/a n/a Super AMOLED OLED PMOLED

Functions

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

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5 ATM 5 ATM IP68 n/a IP57

Notifications

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

Software

Operating System n/a n/a Tizen n/a n/a
Apps n/a
Music n/a

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