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Image of a Forerunner 735XT
Image of a M400
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Basic Info

Suggested Price$350$450$200$120
Release2017201620142014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hours14 hours to 11 days8 hours to 30 days2 weeks
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorblue
Resolution480 x 480215 x 180n/a128 x 32
Size1.38 inches1.23 inchesn/an/a
Touchn/aSwipe
TypeP-OLEDn/an/aOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2n/an/an/a
Apps
Music

All Wearables