Charging speed / battery life question

Hi, I was curious how the charging speed on miyoo devices are. I have a anbernic RG355H model and it's a great device but battery life is alright but it's charging speed is EXTREMELY slow.

I was considering buying another vertical device and apparently Trimui has the same slow charging issue. Curious how the charging speed on miyoo is.

I own a analog pocket which I love but I want another cheaper vertical with a screen that's better resolution for GBA games