Mi devices comes with MIUI custom ROM. Rather than MIUI there are some cool custom ROM available. Testing something new always exciting. MI users can test the following custom with awesome UI.
Here is the top 5 custom ROM out there for MIUI devices:
1. Cyanogenmod 13:
Cyanogenmod 13 featuring Android M is one of most popular custom ROM out there. Stylish UI, frequent update, and stable performance make this a popular ROM.
PAC-ROM is an option-rich custom ROM. PAC-ROM provide almost each and every facility needed for a device.
3. Paranoid Android
Paranoid Android provide stock ROM facility with subtle changes. It is best custom ROM for notification and navigation tweaking.
OmniROM provides stock Android experience with some handy extra features. It is developed by former Cyanogenmod developer.
SlimROM is a feature rich custom ROM. It is lightweight ROM with necessary features you need. SlimROM also provides stable performances.