HiBy W4: The $99 Portable DAC/AMP That Blurs the Line Between Wireless

HiBy W4: The $99 Portable DAC/AMP That Blurs the Line Between Wireless and Wired Audio

A new portable DAC/AMP from HiBy merges Bluetooth convenience with high-end wired performance, featuring dual DACs, balanced outputs, and a 1500mAh battery—all for $99. Here’s how it stacks up for audiophiles and casual listeners alike.

The hunt for perfect sound often pits convenience against quality. Wireless streaming delivers ease but rarely matches the fidelity of wired connections. HiBy’s latest device, the W4, aims to bridge that gap with a bold hybrid approach: a portable DAC/AMP that supports both Bluetooth 5.4 and high-resolution wired outputs, all while fitting in a pocket.

Announced as part of HiBy’s W Series, the W4 isn’t just another dongle. It’s designed to be clipped onto bags, attached magnetically to phones (like a MagSafe accessory), or carried as an everyday carry (EDC) device. Its 2-inch touchscreen lets users control playback, pair devices, and adjust settings without reaching for a phone—something rare in this category.

The W4’s audio prowess starts with dual Cirrus Logic CS43198 DACs and dual amplifiers, handling PCM up to 768 kHz/32-bit and native DSD512. For wired users, it offers both single-ended 3.5mm and balanced 4.4mm outputs, with the latter delivering up to 475 mW of power—enough to drive even demanding in-ear monitors. Wirelessly, it leans on Qualcomm’s QCC5181 chipset, supporting aptX Adaptive, Snapdragon Sound, aptX Lossless, LDAC, and more, ensuring low-latency, high-res streaming.

Audio: Dual Cirrus Logic CS43198 DACs, dual amplifiers; PCM 768 kHz/32-bit, DSD512; 3.5mm single-ended + 4.4mm balanced outputs (475 mW balanced)
Wireless: Qualcomm QCC5181, Bluetooth 5.4, aptX Adaptive, Snapdragon Sound, aptX Lossless, aptX HD, LDAC, AAC, SBC
Battery: 1500mAh, Uncharge Mode (isolates power from paired device)
Display: 2-inch touchscreen (Bluetooth mode)
Design: Clip-on/magnetic attachment, contrasting color scheme (black screen + vibrant module)
Price: $99

The 1500mAh battery is a standout for portability, though HiBy notes that the Uncharge Mode—already used in its digital audio players—prevents battery drain from the paired device. Visually, the W4 stands out with a two-tone design: a black screen on one side and a brightly colored module on the other, making it as much a fashion statement as a functional tool.

Who is this for? Casual listeners might appreciate the wireless convenience, but the W4’s wired capabilities and balanced output make it a serious contender for audiophiles tired of compromising on sound quality. The $99 price tag positions it as an accessible upgrade over dedicated DACs or headphone amps, though purists may still prefer standalone solutions for studio use. For those who want flexibility without sacrificing performance, the W4 could redefine what a portable audio device can do.

Availability is immediate via HiBy’s official online store.