Originally Posted by
mattcalifornia
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Cons:
• Battery life -- I got about 4 hours of life or so on a full charge (which means I usually carried an extra external battery - thus negating the weight savings)
• No ANT+ unless you get a separate dongle
• Greater risk of damaging phone in a crash
.
Those reasons made me reject the phone solution, phone is along in my jersey.
I use a Garmin Vivoactive HR to record rides (Biketracker APP from 007 software); while there are probably better ways to "analyze" the data, Garmin Connect does the job for me.
BUT looking at the watch was a potential hazard, to have the readout right in front of my nose I supplement with a iGS50E.
There are a lot of apps for Garmin watches, very handy for all kinds of uses.