Originally Posted by
Drew Eckhardt
It depends.
Phone screens are less visible than LCD in bright sunlight, you only get four hours of screen time, the capacitive touch screens register rain drops as presses, and most phones won't interface to standard ANT+ sensors.
I wouldn't.
This should be the summary answer to every single "can I use my smartphone as a bike computer" question. I already have an old unused Android phone and if it breaks (unlikely), I don't care. My rides are usually short and for the rare cases I bring a battery. OsmAnd + GPS tracks from RWGPS/Strava = awesome. So it works for me but I understand the tradeoffs.
One question is "how are you planning on using it". Just logging data or following directions? How much hassle do you want to go through to create/load routes or offload recordings?