Does it run streaming apps?

Yes. It runs Android, so streaming services can be installed and played directly on the device.

Can it drive high-impedance headphones?

It has a balanced headphone output and a Class A amplifier section, which gives it more headroom than a phone or basic dongle. Very hard-to-drive headphones may still benefit from a dedicated desktop amp.

How does it compare with the earlier R6 III?

The 2025 version is the current refresh of the R6 III line, keeping the Android platform and balanced output. Check the specific hardware differences if you already own the earlier model.

Does it have expandable storage?

HiBy players in this line accept a microSD card for local files, so you can carry a library alongside streaming apps.

Is it worth it over a dongle DAC?

If you want a screen, battery and a self-contained player for streaming and stored files, yes. If you only listen casually from a phone, a dongle is simpler and lighter.