I have a Nokia ASHA dumb? phone as they seem to be called these days, as does SWMBO, basically a phone that is used as a phone and nothing else, so be aware i know very little about the functionality of smart phones (also i only make about 1 phone call a month, and a couple of text if that)

Anyway wifeys phone battery is only lasting 5 days (mines about 9 days), and she also needs to make closeup drawing/Art demo videos, we were offered a scuffed but working iPhone 4 for about $50 as a lot of the similar online videos shes seen have been filmed on iphones, but I prevaricated a bit too long and the phone went to someone else, not a problem as i would rather find a bit more out first, so here are a pile of questions

I kinda like the iPhone because although battery life isn't measured in weeks, there are loads of clock radios with a builtin charger for an iphone and wifey always has her existing phone on the bedside table, so it could be popped on charge nightly or whatever.

Start of questions

1) What is the minimum iPhone for making a video of average quality, basically one that'll look good on a monitor

2) Was $50 for an iphone 4 good, bad, i have tried looking on trademe but prices seem to be all over the place. $50 was a good price for me to spend for what is currently my wifes hobby, but as i know so little about these phones i didn't buy it.

3) The only other apple product we have is Powermac G4 laptop can the videos be edited on any platform? as we have a windows 10 PC and an Ubuntu LTS (whatever latest version) machine

4) I am not married to the idea of an iphone but it seems to be the one shes mentioned, note she uses Ubuntu on her PC

5) Do they do wiFi? as i would much rather it used wifi or a cable to synch everything up

6) What is the battery life like on these phones, I have read 6 days on somethings, 1 day if its actually being used

6) we are both 2degrees users if that matters.

Thats all i can think of for now, but i'm sure theres more i need to know