Garmin
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 62s vs. 64s: 
    - Glonas (improvments in northern latitudes and deep canyons)
    - ANT vs. ANT + Bluetooth
	* BT could work better with Fenix2 when hanging ANT, but there is no
	way transfer directions anyway. Only pre-prepared tracks and 
	waitpoints/route-points
	* Also there is currently no Garmin Basecamp Mobile for Android 
    - CPU (may be slightly, no specs) 
    - Battery capable of only 16h instead of 20h with 62s


Alternatives
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    Maggelan is alternative rouged device, but touch only...  Key models does not have SD