Using Galaxy S5 Android as a GPS questions

[DBM_imp]

I am a long time Samsung Android user. I recently upgraded from a Galaxy S5 to a Note 8. Love the new phone, and the horsepower increase has been amazing. I am looking for advice on using my old phone as a redneck GPS on my new street bike. Here is my plan, let me know if this will work or what set up/free apps would work better. I want to use Goolge Maps as my app if possible. I want to hang my old S5 from my bars using a secure RAM mount The S5 no longer has a SIM card, so l need WiFi and/or Bluetooth to connect. I would like to use my Note 8 as a hot spot for my S5 when on the bike to allow Google Maps to work. Is this possible? What wireless connection works best between 2 phones? Wifi or Bluetooth? What say you?