The sound performance of R3 Pro using balanced Output is very Good. It is a Good DAP for local files.
You may want an upgrade if:
- You want an Android device
- You want better performance via SE output
Hiby is rather neutral DAP. Some may Say it is boring or dead sound, but truth sometimes may be harsh
I own R3 Pro and Shanling M3X and despite the better performance of Hiby i prefer using Shanling with PowerAmp installed and customised Launcher + M3X provides super battery life for DAP with Android. Additionally 4.4 mm Output is nice in terms of durability.
BUT - if you want a neutral small DAP for local files you already own it.