In the app stores of your smartphone you will surely find several free applications to view gpx files which are extensions of track files. We recommend the GPXviewer app (google store, android), at the moment it seems like the best free app, but you can look for others.

Remember that to use your smartphone as a navigator it may be useful to take our rental smartphone holder which has a touchscreen cover so you will not have to worry in case of rain, it is fixed on the top tube at the corner with the handlebar pipette attachment. We also recommend that you always have a power bank with you so that you can reach your destination every day without running out of battery sooner. In this case you can use our paper map. Another problem for those who use the smartphone is direct sunlight, in fact it is difficult to look at the smartphone in full sun so alternatively you can decide to rent our Garmini Edge touring gps navigator with the tracks you will show us, our navigator is created to be used even in full sun, you will always see the display without problems.