Vendor:Hiby

Hiby R4 - Digital Audio Player

€249,00

This is for when you want your music on its own device, away from notifications and a battery you're already fighting over.

The R4 runs full Android, so your streaming apps work exactly as they do on your phone — but with a much better amplifier behind them. It's the first player at this price with a "Class A" amp, the kind usually reserved for pricier gear, and it has genuine power on tap. The sound leans warm and easy in normal use, and turns a touch cleaner in its dedicated music mode.

Two honest things to know: it runs warm when you push it hard, and the battery is good rather than great. But as a first real player, it punches well above what it costs.

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Available to demo - book a listen Friday in Utrecht

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Free shipping within Netherlands from €100 and within the EU from €250

Fast EU Shipping 2-5 days delivery

VAT and all taxes included in the price

Our take

A dedicated music player with real power and a proper amp inside — your first step off the phone, without the flagship price.

What it'll drive :

Every earphone in the lineup, comfortably — and then some. The balanced output puts out 525 mW, which is more than any IEM here will ever ask for, so sets like the Mega5EST, Mystic8 and S12 Ultra, all play with easy authority. It'll even push some full-size headphones.

Streaming & compatibility

It runs open Android 12 with the Google Play Store built in, so install anything — Apple Music, Tidal, Spotify, Qobuz, YouTube Music.One honest note if hi-res matters to you: Apple Music on Android doesn't go fully bit-perfect, so Tidal or Qobuz are the better choice for the highest quality.

You can switch modes from the top of the screen: a Pure Audio mode that locks to the music player for the cleanest sound, standard Android for apps, USB DAC mode to use it with a laptop, and Bluetooth receiving mode.

Bluetooth works both ways, so you can also send to wireless headphones.

Power & Battery

Two headphone outputs: 165 mW from the 3.5 mm, and a strong 525 mW from the balanced 4.4 mm.
Two things worth being straight about — that Class A amp is what makes it sound good, but it's also why the R4 gets warm when driving demanding sets on balanced. And the 4500 mAh battery is rated at around 11 hours; in real, mixed use expect closer to 7–10. It charges over USB-C (PD, up to ~20 W).
No charger brick is included in the box — most players in this class leave it out.

The tech

Type: Android DAP (digital audio player)
DAC: quad ESS ES9018C2M
Amp: Class A
Processor: Qualcomm Snapdragon 665, 3 GB RAM
OS: Android 12 (HiBy OS), Google Play pre-installed
Storage: 32 GB internal + microSD up to 2 TB
Outputs: 3.5 mm single-ended + 4.4 mm balanced
Output power: 165 mW (3.5 mm) / 525 mW (4.4 mm balanced), 4.1 Vrms balanced
Formats: PCM up to 32-bit/768kHz, native DSD256, MQA 16×
Wireless: Bluetooth 5.0 (two-way), Wi-Fi 2.4/5 GHz
Display: 4.7" 720p IPS touchscreen
Battery: 4500 mAh — up to ~11 h rated (7–10 h real-world); USB-C PD charging up to ~20 W
Dimensions: ~129.6 × 68.3 × 18.5 mm
Weight: ~231 g