Baofeng UV-82 VS Baofeng BF-F8+ .. which one performs better

Hello!

I currently have a Baofeng UV-82 and I like its performance

I want to know if the F8+ performs better than the UV-82 ? I like the F8+ because of the available Accessories for it.

and what about the BF-5R5HP that Fasttech sells https://www.fasttech.com/products/9041901 I haven't seen any review about it, if I buy it are there replacement batteries for it ?

Thanks :-)