Quote Originally Posted by Owlie View Post
I'd be wary about using phone apps, because of the potential for draining the battery and not having a phone when you need it. Of course, I do not possess a smartphone, so take it with a grain of salt.
I do have an iPhone and reserving its batter is precisely why I use a Garmin.

I want to be able to reliably double check the maps if I need to as well as make a call.

There are also GPS units. Garmin makes several. I don't know about those.
I have the Garmin 305 which I use for biking, hiking, skiing, etc. It has a heart rate monitor which has been fun to track over the years.

A couple of years ago Mr. Sz got me the Edge as a gift, which I love, because it has even more data, but alas, it doesn't have the HR (since I have the 305) so when cycling, I use both. I recommend the Edge, absolutely, for cycling.

Edit to add: Either can be uploaded to Strava.