DJWrongspeed
radio eros
I think if you have one of these waterproof cases hiding your phone it'd be ok. You can just use any old phone with GPS , it doesn't need a sim card in it. I've used Maps.me for years , free and easy (won't load GPX) but I know people recommend Osmand Maps. Phones are fine for shorter distances in the city. If I was doing all day bike touring i'd probably get a cycle computer.I've been cycling a bit more recently and wondered if regular cyclists use bike 'computers' any more or do they just use their phones?
I think I'd feel a bit vulnerable to theft if I had my phone strapped on my handlebars or am I being a bit paranoid?