Heading to WY later this week, have my spots picked out. downloading maps to my iphone 7 this week. I'm not a tech person, but anyone have an idea approximately how many maps a 32 gig phone can handle? I'm thinking approximately 7-8 sections that I assume I could do with 5 mile map. I'm old so I don't run any twitters or instagrams on my phone, but wasn't sure if downloading a pile of maps will overwhelm it. Thanks