I need help but please be gentle with your descriptions as I am not too bright with this stuff

I have a TomTom One 3rd Edition with Western European Maps thats about 10 years old (on the screen when its running it says version 8.010)

I also have TomTom on my iPhone (The latest version)

Is there anyway to upgrade the TomTom One to the same software as the iPhone as its miles better. Also for obvious reasons the maps are a long way out of date

I am reading about the maps downloading but I get filtered to a different site that I understand even less

I also read about it needing activating

This is all way above my head but it would be nice for the satnav to know i was on a road when i go to work

Remember to make any replies a step by step for dummies reply

Many Thanks