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Apple Watch 2 Nokia (Withings) Pulse Ox Polar Loop Polar M400

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Price and Release Date

Suggested Price$269$120$100$200
Release / Update2016201420132014

Activity & Fitness

Calories
Distance
Heart$
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate

Battery

Duration18 hours2 weeks5 days8 hours
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Macn/an/a
Windowsn/an/a

Connectivity Support

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorblue
Resolution340 x 272
or 390 x 312
128 x 32128x128
Size1.5 inches
or 1.65 inches
Touchswipe
TypeAMOLEDOLEDLEDLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5ATM2 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatch OSn/an/a
Apps
Music

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