If you want ultra-lightweight comfort with a secure fit for side sleeping, choose Beats Solo 4; if you need versatile multipoint connectivity and app-based sound tuning, choose SONY WH-CH520.
Beats Solo 4 vs SONY WH-CH520 at a Glance
• SONY WH-CH520: Delivers robust battery life with quick charging and a swivel design that folds compactly, but features a simpler plastic build without the specialized ergonomic shaping of its rival.
• Best for Side Sleepers: The Beats Solo 4 is the clear winner here due to its angled ear cups and ultra-plush cushions designed to minimize pressure points when resting your head on a pillow.
• Best for Tech Users: The SONY WH-CH520 wins for those who need to switch seamlessly between two devices simultaneously via multipoint connection.
The Beats Solo 4 is built around the philosophy of all-day wearability without sacrificing the signature sound profile the brand is known for. Its most defining feature is the ultralight ergonomic design, which includes ergonomically angled, adjustable ear cups. This specific engineering detail makes it a standout option for anyone looking for best wireless headphones for side sleepers. When you lie on your side, the angle of the ear cups allows them to sit flush against your head rather than digging into your cheekbone, a common issue with flatter designs. The Flex-grip headband further ensures that the headphones stay in place without feeling like they are crushing your skull, a crucial balance for comfort.
For audio quality, this model utilizes a custom acoustic architecture and updated drivers. While many budget options struggle with clarity, the Solo 4 aims to deliver powerful and balanced sound that doesn't rely solely on bass. If you enjoy immersive experiences, the personalized Spatial Audio with dynamic head tracking adds a layer of depth that can make movies and music feel more three-dimensional. The battery life is equally impressive, offering up to 50 hours of playback on a single charge. This means you can go days without needing to plug it in, and the Fast Fuel feature ensures that a mere 10-minute charge provides enough power for five hours of listening.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 6 min read · Independent comparison
However, this product isn't perfect for everyone. If you require active noise cancellation to block out a loud office or airplane cabin, the Solo 4 will not meet that need as it relies on passive isolation from its ear cushions. Additionally, while it supports lossless audio via USB-C or a 3.5 mm cable, the experience is tethered to wired connections for that specific high-fidelity mode. It is best suited for commuters, students, and casual listeners who prioritize physical comfort and long battery life over technical features like multi-device switching or digital noise canceling. If you have ever struggled to find in ear earbuds for side sleepers that don't hurt your ears, you will likely appreciate how this on-ear design solves that problem through its unique shape.
The SONY WH-CH520 targets the user who needs versatility and control over their audio environment. Its primary strength lies in its connectivity and software integration. Unlike the Beats, which focuses heavily on physical ergonomics, the Sony shines in its ability to manage multiple sources. The multipoint connection allows you to pair two Bluetooth devices simultaneously. This is a game-changer for professionals or students who might be taking a call on their smartphone while watching a video on their laptop. You can switch between the two instantly without the hassle of unpairing and re-pairing, ensuring you never miss a critical notification.
Sound customization is another pillar of the Sony experience. Through the Sony | Headphones Connect App, users gain access to EQ Custom features. This allows you to tailor the frequency response to match your personal preference or the specific genre of music you are listening to. Whether you prefer a heavy bass boost or a more vocal-forward mix, the app gives you the tools to sculpt the sound. The inclusion of DSEE technology also helps restore high-frequency details lost in compressed music files, enhancing streaming quality significantly. With up to 50 hours of battery life and quick charging that offers 90 minutes of playback from just three minutes of charge, the power management is top-tier for long road trips or festival weekends.
Despite these strengths, the design philosophy differs markedly from the Beats. The WH-CH520 features a swivel design that makes it compact for travel, but the ear pads, while soft, lack the specialized angling found in the Solo 4. For some, the plastic enclosure might feel less premium, and the absence of active noise cancellation is a notable omission for those seeking total silence. However, the lightweight build and silent joints do provide decent comfort for general use. It is ideal for the tech-savvy user who values app control, seamless device switching, and a wide range of color options over the ultra-specific ergonomic comfort of the Beats. It is a solid choice for daily commuting and office work where staying connected to multiple screens is essential.
• Best for Battery Life: Both offer up to 50 hours, but the Sony provides slightly faster quick charging (3 minutes for 90 minutes) compared to the Beats (10 minutes for 5 hours), making the Sony marginally better for emergency top-ups.
• Best for Comfort & Side Sleeping: The Beats Solo 4 takes this category decisively with its angled ear cups and UltraPlush cushions designed specifically to reduce pressure on the sides of the face.
• Best for Multi-Device Use: The SONY WH-CH520 is the only option here with true multipoint connection, allowing you to listen to audio from two devices at once.
• Best for Sound Customization: The Sony wins with its dedicated app support for EQ presets and DSEE upscaling, whereas the Beats offers a more fixed "powerful and balanced" profile.
• Best for Durability & Fit Stability: The Beats Flex-grip headband and stable fit make it superior for active movement or restless sleeping positions.
• Best for Travel Portability: The Sony swivel design creates a more compact footprint for packing, while the Beats has a more rigid structure.
• Best for Wired Lossless Audio: The Beats explicitly supports lossless audio via USB-C or 3.5mm cable, a feature not highlighted for the Sony in its core specs.
• Best for Voice Assistant Integration: Both support voice assistants, but the Sony explicitly mentions Google Find My Device integration for locating missing headphones.
In my opinion, the choice comes down to how you plan to wear these headphones. If you are looking for best extra bass wireless earbuds for side sleepers or simply want the most comfortable on-ear experience for lying down, I would buy the Beats Solo 4. Its angled ear cups and plush cushions are clearly engineered to solve the specific pain point of side sleeping, making it the superior choice for relaxation and rest. However, if your priority is managing work and entertainment across multiple screens with advanced sound tuning, the SONY WH-CH520 is the more functional tool. For the average buyer who wants to maximize comfort and battery life without worrying about app settings, the Beats Solo 4 remains my top pick for its thoughtful ergonomic design.
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