Garmin forerunner 620 vs Garmin Vivosmart HR vs Polar M400

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Garmin

forerunner 620


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Garmin

Vivosmart HR


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Polar

M400


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Basic Info
Price range
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Release date201320172014
General Features
Calories/day
Cycling
Distance meter
Heart rate
Oxygen
Sleep time
Step count
Swimming
Compatibility
Android
iOS
Windows Phone
Mac
Windows
Functions & Connectivity
Audio speaker
Clock
Phone
Vibration
Bluetooth
Cellular chip
GPS
NFC
WIFI
Battery & Features
Battery life10 hours5 days1 day
Accelerometer
Barometer
Water resistance
Phone notifications
Email notifications
Text notifications
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