Watch Series 2 Time Steel One Talkband B2 645 Music
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Basic Info

Suggested Price $269 $250 $100 $180 $450
Release 2016 2015 2012 2015 2018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration 18 hours 10 days 10-14 days 3 days 7 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
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 340 x 272 or 390 x 312 168 x 144 n/a 128 x 88 240 x 240
Size 1.5 inches or 1.65 inches 1.26 inches n/a 0.73 inches 1.2 inches
Touch
Type AMOLED e-paper OLED PMOLED MIP

Functions

Audio Speaker Bluetooth
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating System Watch OS Pebble OS n/a n/a
Apps
Music

All Wearables