If you crash often, then a handlebar mount could be a concern. Which begs the question, how often? If you don’t Quadlock would be my choice. Again, that’s if you use your phone for navigation, or with Varia or as a cycle computer. If not, a jersey pocket makes the most sense - where mine has lived for a couple of decades.
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Road 🚴🏾♂️ & Mountain 🚵🏾♂️