Beats Solo 4 Review: 50-Hour Battery and Spatial Audio

Who Should Buy It

Key Specifications

Overview

The Beats Solo 4 is an on-ear wireless Bluetooth headphone positioned as a budget friendly option in the listing. It claims up to 50 hours of battery life, personalized spatial audio with dynamic head tracking, and high-resolution lossless playback through USB-C or 3.5mm connections. The design emphasizes an ultralight build with a flex-grip headband and UltraPlush ear cushions.

The product listing highlights dual compatibility with Apple and Android devices, including one-touch pairing on both platforms. Class 1 Bluetooth is meant to provide extended range with fewer dropouts. The headphones also include a built-in microphone for calls and voice assistant access.

As an on-ear model, the Solo 4 sits directly on the ears rather than surrounding them. This approach can reduce bulk and weight, though it may not isolate outside noise as effectively as over-ear designs. The listing does not state an active noise cancelling feature.

Sound Quality

The listing describes custom acoustic architecture and updated drivers intended to produce powerful Beats sound. That suggests a punchy, bass-forward tuning that the brand is known for, but no specific driver size or material is published. On paper, the sound should be balanced enough for a wide range of popular music, though audiophiles may want more detail.

Personalized spatial audio with dynamic head tracking is included. This feature uses sensors to adjust the audio image as you move your head, creating a more immersive listening experience for compatible content. It is a notable addition for an on-ear headphone in this price tier.

High-resolution lossless audio is supported via the USB-C or 3.5mm cable, which bypasses wireless compression. However, the listing does not specify any high-resolution Bluetooth codec, so wireless playback may rely on standard SBC, AAC, or unspecified protocols. Buyers who want the best quality should plan to use a wired connection.

Comfort and Fit

The Solo 4 is described as ultralight with an ergonomic design. The flex-grip headband and adjustable ear cups are meant to provide a stable fit for all-day use. UltraPlush ear cushions are intended to improve comfort and durability, though the exact weight of the headphones is not published in the listing.

On-ear designs place pressure on the outer ears, which some users find uncomfortable after long sessions. The light weight and plush padding may help, but individual comfort varies. The listing claims all-day comfort, but without in-person testing that remains a claim rather than a confirmed result.

The adjustable ear cups and flexible headband suggest a fit that can accommodate different head sizes. The stable fit is beneficial for movement, but listeners who wear glasses or have sensitive ears may prefer an over-ear alternative for longer wear.

Noise Control and Features

The Beats Solo 4 does not appear to include active noise cancelling. The listing does not mention ANC, which is a significant omission for a modern headphone in this segment. Passive isolation from the on-ear pads may reduce some ambient sound, but it will not match the performance of dedicated noise cancelling models.

Key features include personalized spatial audio, dual compatibility with one-touch pairing for iOS and Android, and a built-in microphone for calls and voice assistant interaction. Class 1 Bluetooth is claimed to offer extended range and fewer dropouts compared to standard Bluetooth.

The listing does not describe a companion app, custom EQ, or firmware update process. That may be a drawback for users who want to fine-tune sound. The absence of ANC and app-based controls keeps the feature set simpler than some competitors.

• Personalized spatial audio with dynamic head tracking
• One-touch pairing for both Apple and Android devices
• Built-in microphone with high-quality call performance
• Class 1 Bluetooth for extended range
• High-resolution lossless audio via USB-C or 3.5mm cable
• No active noise cancelling listed

Battery, Bluetooth and Connectivity

Battery life is a standout specification at up to 50 hours on a full charge. The Fast Fuel feature provides up to 5 hours of playback from a quick 10 minute charge, which is useful for travelers and commuters. This endurance is competitive with many full-size wireless headphones.

Bluetooth uses Class 1 technology for extended range and fewer dropouts. The exact Bluetooth version and supported wireless codecs are not published in the listing, which limits a full assessment of wireless audio quality. The one-touch pairing for both iOS and Android means the headphones should connect easily across ecosystems.

For the highest quality listening, a USB-C or 3.5mm audio cable can be used. This wired mode supports high-resolution lossless audio, so the headphones can serve double duty as a wired set when the battery is depleted or when maximum fidelity is desired.

Build, Design and Portability

The Matte Black finish gives the Solo 4 a understated look. The on-ear form factor is inherently compact, but the listing does not state whether the headphones fold or include a carrying case. Without that information, portability is likely good but not fully documented.

The materials are not listed in detail. Beats headphones typically use plastic and synthetic leather, but the listing does not confirm exact construction. The UltraPlush ear cushions are described as designed for comfort and durability, which suggests attention to long-term wear.

The lack of a published weight is notable for a product marketed as ultralight. Buyers who prioritize a lightweight build will need to rely on the listing's qualitative claim rather than a specific number. The adjustable headband and ear cups should help the headphones fit into a bag or backpack easily, assuming a compact footprint.

Call Quality and Daily Use

The built-in microphone is described as providing high-quality call performance and voice assistant interaction. This suggests clear voice pickup, but the listing does not provide details on microphone count or noise suppression for calls. In noisy environments, call quality may vary.

Daily use benefits from the long battery life and quick charge feature. Listeners can expect several days of typical use before recharging. The lightweight on-ear design may be comfortable for work-from-home sessions, but those in loud offices may miss active noise cancelling.

The dual compatibility with Apple and Android makes the Solo 4 a flexible choice for households with multiple devices. The one-touch pairing removes friction when switching between a phone and a tablet. The wired option also ensures the headphones remain usable even if the battery is empty.

Who Should Buy It

The Beats Solo 4 suits listeners who want the Beats brand and a long battery in an on-ear design. It is a good match for people who value spatial audio and dual platform support without paying for a flagship over-ear noise cancelling model.

Commuters and travelers may appreciate the 50 hour battery and Fast Fuel charging. Users who prefer the smaller footprint of on-ear headphones over bulky over-ear alternatives will find the Solo 4 appealing. The wired lossless option also makes it viable for occasional critical listening.

Buyers who do not need active noise cancelling and can accept some ambient sound will be satisfied. Those who want easy pairing with both an iPhone and an Android tablet should consider this model.

Alternatives Worth Considering

Listeners who want active noise cancelling should look at over-ear models like the Sony WH-1000XM5 or Bose QuietComfort 45. Both offer a more isolating experience, though they are larger and often cost more. The Apple AirPods Pro is an in-ear option with strong ANC and seamless iOS integration.

For those who prioritize sound quality over wireless convenience, the Sennheiser HD 560S or Audio-Technica ATH-M50x are wired over-ear headphones known for detailed, neutral sound. They lack the wireless and spatial features of the Solo 4 but may appeal to listeners who do not need portability.

Budget conscious buyers who still want over-ear ANC could consider the Anker Soundcore Space One, which offers feature-rich noise cancelling at a lower price point. Each alternative has trade-offs in form factor, battery life, and platform support, so the choice depends on individual priorities.

Verdict

The Beats Solo 4 is a focused on-ear wireless headphone that emphasizes battery life, light weight, and spatial audio. The missing active noise cancelling is a clear trade-off, but the 50 hour battery, Fast Fuel, and dual platform one-touch pairing are strong conveniences.

Sound quality on paper prioritizes powerful, balanced playback, and the wired high-resolution lossless support adds versatility. The lack of published driver specs, weight, and Bluetooth codec details makes a fully informed judgment difficult, but the listing's feature set is competitive for a budget tier on-ear model.

Overall, the Solo 4 is best for listeners who want a compact, long lasting wireless headphone without paying for noise cancelling. Those who need ANC or a more immersive over-ear fit should look elsewhere. The combination of battery and wired lossless support gives the Solo 4 real everyday value.

Strengths and Limitations

Alternatives to Consider

Beyerdynamic AVENTHO Y

Budget-conscious listeners who want long battery life, Bluetooth multipoint, and active noise cancelling in a foldable over-ear design.

Read the Beyerdynamic AVENTHO Y review →

Fosi Audio ZA3

Desktop listeners who want a compact high-power amplifier for passive bookshelf or tower speakers with balanced source gear.

Read the Fosi Audio ZA3 review →

Beats Studio Buds +

Listeners who want budget true wireless earbuds with active noise cancelling, spatial audio, and strong Apple and Android compatibility.

Read the Beats Studio Buds + review →

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Questions Buyers Ask