Watch Series 2 ZenWatch 3 2 One Talkband B2
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Basic Info

Suggested Price $269 $229 $129 $100 $180
Release 2016 2017 2016 2012 2015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 18 hours 48 hours 7 days 10-14 days 3 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth Yes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 340 x 272 or 390 x 312 400 x 400 n/a n/a 128 x 88
Size 1.5 inches or 1.65 inches 1.39 inches n/a n/a 0.73 inches
Touch
Type AMOLED AMOLED e-paper OLED PMOLED

Functions

Audio Speaker Bluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5ATM 3 ATM Splast Resistant IP57

Notifications

Phone
Emails
Texts

Software

Operating System Watch OS Android Wear 2 Pebble OS n/a n/a
Apps
Music

All Wearables