The HiBy W4 pairs a color touchscreen interface and support for high-bandwidth codecs (LDAC) with a dual-output portable DAC/amp (3.5mm single-ended and 4.4mm balanced plus USB‑C). It delivers a clean, neutral, detailed presentation and handy features like an "uncharge" hardware switch, but suffers from EU volume limiting, no companion app/parametric EQ, and limited volume memory — solid for listeners who want touchscreen control, codec flexibility, and balanced output, but frustrating for EQ-tweakers and users who need out-of-box loudness.
For mobile listeners who want a touchscreen Bluetooth DAC with LDAC and balanced outputs; avoid if you require on-device PEQ, persistent volume, or out-of-box high volume.
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