R9 OS

Thanks to its 1080p resolution (1080x2160p) the 6-inch LCD screen looks slightly more crisp vibrant compared to the 5-inch of the R7.

At the time of my review firmware v1.0.4 was available so this is what i used.

So once again from the drop down menu you can set the screen brightness, enable/disable Wi-Fi and Bluetooth, change the mode, set the gain and output mode, enable in-vehicle mode, enable FiiO Roon and all to DSD functions, switch between dark/light themes, enable night light and rotate the screen.

There's also a graphical mode changer by pressing the power button if you don't want to use the drop-down function.

Inside the settings you'll find most of the features available in Android smartphones plus the more advanced audio and image settings.

Typically, it's the Pure Music mode what everyone will be using and as always is very easy to navigate.

As mentioned earlier the RGB LEDs change color depending on the audio codec so above you can see magenta for MQA, blue for MP3 (lossy audio) and yellow for FLAC Hi-Res (green for DSD and cyan for SQ). As with similar devices a short video is available online both on TikTok and YouTube.