Save and spend the money to get a Garmin or Wahoo. I still have most all my Garmin's for cycling, auto, marine and other sports activities. Well over a dozen now. and they all still work. Some from 2005. The only Garmin I have that quit was a early chart plotter that was underwater on a sailboat that sunk during Hurricane Katrina in 2005 that was underwater for two week. However after refloating the boat and drying out the chart plotter, it worked for four more years. My original Edge 500 I bought circa 2010 still works, though I've since replaced it with a newer Garmin in 2020.

Phone apps might work for you. But I'd think that longer trips you might find them just draining your battery. And maybe a issue if in areas of bad cell service and using maps.