Beats Solo 4 vs Beats Solo Buds
Updated April 2026 — Beats Solo 4 wins on sound and connectivity, Beats Solo Buds wins on battery and portability.
$69.95Beats Solo Buds - Wireless Bluetooth Earbuds | 18 Hours of Battery Life | Apple & Android Compatibility | Built-in Microphone - Storm Gray
Beats
The Beats Solo 4 wins for users prioritizing audio features and wired connectivity options, offering Spatial Audio and included cables. The Beats Solo Buds are the better choice for portability and battery transparency, providing explicit playback hours and a compact case design.
Why Beats Solo 4 is better
Personalized Spatial Audio support
Features dynamic head tracking for immersive listening
Wired listening option
Includes 3.5 mm analog audio cable for non-Bluetooth use
Complete cable bundle
Includes universal USB-C to USB-C cable for charging and audio
Why Beats Solo Buds is better
Explicit battery life
Rated for up to 18 hours of playback
Extended Bluetooth range
Utilizes industry-leading Class 1 Bluetooth
Compact form factor
Features the smallest case design in the lineup
Overall score
Specifications
| Spec | Beats Solo 4 | Beats Solo Buds |
|---|---|---|
| Price | N/A | $69.95 |
| Battery Life | null | Up to 18 hours |
| Fast Charging | Supports up to 60 watts | 5-minute charge = 1 hour |
| Wired Audio | 3.5 mm analog audio cable included | null |
| Spatial Audio | Personalized with dynamic head tracking | null |
| Bluetooth | null | Class 1 Bluetooth |
| Included Cables | USB-C to USB-C, 3.5 mm | USB-C charging cable (adapter sold separately) |
| Case Design | Carrying case included | Smallest case design |
Dimension comparison
Design and build quality
The Beats Solo 4 features an ultralight ergonomic design intended for all-day wear. It utilizes a flex-grip headband and ergonomically angled, adjustable ear cups to ensure a stable fit during use. The build emphasizes exceptional durability, incorporating a tangle-free braided design on included cables that is reinforced to help prevent fraying. In contrast, the Beats Solo Buds focus on miniaturization, boasting the smallest case the brand has ever made. This makes the earbuds a compact on-the-go companion. Both products aim for durability, but the Solo 4 emphasizes structural flexibility while the Solo Buds prioritize pocketability.
Sound performance and architecture
Audio architecture differs significantly between the two models. The Solo 4 employs custom acoustic architecture with updated drivers designed to deliver powerful Beats sound. It distinguishes itself with Personalized Spatial Audio featuring dynamic head tracking, providing a more immersive soundstage. The Solo Buds also utilize custom acoustic architecture for big sound with full range and clarity. They feature dual-layer drivers that minimize distortion to ensure high-fidelity output. Additionally, the earbuds use purposefully positioned axial-aligned drivers to deliver sound directly to the ears, complemented by laser-cut vents that improve audio performance.
Comfort and fit
Comfort strategies vary due to the form factors. The Solo 4 uses UltraPlush ear cushions designed for both comfort and durability. The adjustable ear cups and flex-grip headband allow users to customize the fit for stability. The Solo Buds rely on laser-cut vents to relieve pressure for added comfort within the ear canal. While the over-ear design of the Solo 4 typically suits longer listening sessions without ear fatigue, the axial-aligned drivers of the Solo Buds ensure a direct and comfortable fit for true wireless usage. Both models are engineered to maintain comfort during extended playback.
Connectivity and compatibility
Connectivity options are a key differentiator. The Solo 4 supports USB-C for both charging and audio, making it compatible with USB-C devices including Apple and Android phones, Apple CarPlay, and Android Auto. It also includes a 3.5 mm analog audio cable for wired connections. The Solo Buds offer dual compatibility for iOS and Android devices with seamless one-touch pairing. They utilize industry-leading Class 1 Bluetooth, which provides extended range and fewer dropouts compared to standard Bluetooth classes. While the Solo 4 offers wired versatility, the Solo Buds excel in wireless stability.
Battery life and charging
Battery specifications are clearly defined for the Solo Buds but less specific for the Solo 4 in the provided data. The Solo Buds offer up to 18 hours of battery life. They support Fast Fuel, where a 5-minute charge gives up to 1 hour of playback. Users can charge directly from a phone, tablet, or laptop for extra power on the go. However, the power adapter and USB-C charging cable are sold separately for the Buds. The Solo 4 supports fast charging, with data indicating support up to 60 watts, and includes a USB-C to USB-C cable in the box. The transparency of the 18-hour rating gives the Solo Buds an edge in known efficiency.
Microphone and call quality
Call performance is highlighted specifically for the Solo Buds. Each earbud features custom-designed microphones powered by an advanced noise-learning algorithm for exceptional call quality. This dedicated hardware focus suggests strong performance in voice capture. The Solo 4 product data does not explicitly detail microphone specifications or noise algorithms in the provided text. While both are modern Beats devices expected to handle calls, the Solo Buds provide documented evidence of microphone technology designed for clarity. Users prioritizing call quality may find the documented algorithm in the Buds reassuring.
Portability and accessories
Portability favors the Solo Buds due to their true wireless nature and case size. The Solo Buds come in the smallest case the brand has made, enhancing their status as an on-the-go companion. The Solo 4 includes a carrying case, but the over-ear headphones are inherently less portable than earbuds. In terms of accessories, the Solo 4 bundle is more comprehensive. It includes the headphones, carrying case, universal USB-C to USB-C cable, 3.5 mm analog audio cable, Quick Start Guide, and warranty card. It may also include an additional 20 cm USB-C to USB-C black Beats Cable. The Solo Buds sell the power adapter separately, reducing out-of-box readiness.
Price and value
Value assessment depends on included accessories and feature sets. The Solo Buds are listed at $69.95, but require separate purchase of a power adapter and USB-C charging cable. The Solo 4 price is not listed in the provided data, but the box contents are more comprehensive, including multiple cables and a case without noting separate sales for essential chargers. The Solo 4 also offers Spatial Audio and wired listening capabilities which are absent in the Buds. While the Solo Buds have a known entry price, the Solo 4 offers a more complete package with higher-end audio features like dynamic head tracking, potentially offering better long-term value despite the unknown cost.
