The group was very helpful last time so here is a more technical question. I normally film things on iPad and iPhone but they are limited angles and don't suit a small space. I am after a 4K camera that will record while on power and stores video on memory card. Ideally two hour capacity. No other needs but ideally 90 degree lens or better.
Budget about £150 max.
Failing that, has anyone used a wide angle on an iPad or iPhone with any success.