Which GPS to record Camino?

Suunto watches are good, if a little expensive. They can be charged from a USB. I easily get two days walking
out of mine before it needs a recharge.

Hi SY, I have a Samsung S5 and I use the app S Health it's very complete.
I don't know if it's in the app store.
It works for me.
Wish you well, Peter.

I do recommend runkeeper or wikiloc.
A big plus on wikiloc is that you can download hiking specific maps, which do have a high quality.
Wikiloc is not so popular in English speaking countries (?) but definitely most hikers first choice in Spain and Portugal.

I've used the app Motion-X GPS on an iPhone 4s for several years on three caminos and I love it.

If all you want to do is record your track, it's ready to go "out of the box." You just install the app, and each morning you click on the app and then Menu, Record Track, and Start. Each night you click on Menu, Record Track and Pause.

If you want a separate track for each day you then click Save and the track saves. You can change the name of the saved track if you wish, but it will be dated so you don't really need to. You then click on Reset, and you are ready to go the next morning.

If you are ok with one continuous track, you don't need to save, you just hit Resume each morning.

It's even simpler than it sounds.

You can do other things - if you have data you will see your track on a map; if you don't you can download whatever maps you want ahead of time so they will be there when you have no data. You can import and export tracks, etc. But, for what you want, it is very simple and easy to use.

I've really found it to be a great app.