changeing DAP to a better one

[Zasdapro]

Hi All,
I have a Fiio X1 MKII but I'd like to replace it with a better DAP.
It sounds great , but it's op sys is slow.
What would be a next level but not much more expensive player?
Cheers!

 

[americanaudiophile]

https://www.amazon.com/Sony-NW-A45-Walkman-Hi-Res-Grayish/dp/B0765ZVM6Y/ref=sr_1_1?s=electronics&ie=UTF8&qid=1525456646&sr=1-1&keywords=sony+dap