Which Portable Speaker Should You Buy? Comparing the UE WONDERBOOM PLAY and Marshall Willen II

Understanding Today's Portable Speakers

The portable Bluetooth speaker market has evolved significantly in recent years, with manufacturers focusing on delivering better sound from increasingly compact designs. When comparing the recently released Ultimate Ears WONDERBOOM PLAY ($49.99) and Marshall Willen II ($119.99), we're looking at two different approaches to portable audio.

Today's portable speakers need to balance multiple priorities: sound quality, durability, battery life, and portability. While both speakers hit these marks, they do so in notably different ways that will matter depending on how you plan to use them.

Design Philosophy and Build Quality

The WONDERBOOM PLAY continues Ultimate Ears' distinctive cylindrical design language, which serves a practical purpose beyond aesthetics. The 360-degree sound dispersion means you can place it centrally at a gathering and everyone gets the same audio experience. Its floatable design and robust build make it particularly suitable for pool parties or beach outings.

In contrast, the Willen II embraces Marshall's iconic amp-inspired aesthetic with a rectangular form factor that's slightly slimmer than its predecessor. The rubber mounting strap is particularly clever - I've found it securely attaches to everything from bike handlebars to backpack straps, making it more versatile for solo adventures.

Sound Quality Deep Dive

Bass Response and Volume

The WONDERBOOM PLAY leverages its cylindrical design to create surprisingly impactful bass for its size. The dual passive radiators (which are like speaker cones that move in response to air pressure rather than electrical signals) help extend the low-end response. While it won't shake the room, it delivers enough punch to make EDM and hip-hop enjoyable outdoors.

The Willen II takes a different approach, using a single 2-inch driver with carefully tuned passive radiators. The bass is tighter and more controlled, though not as prominent. This makes it excel with acoustic music, podcasts, and vocal-heavy content where clarity matters more than raw impact.

Midrange and Treble

Here's where the Willen II really shines. Its focused, directional design allows for more precise tuning of the midrange frequencies (where most instruments and voices live). The clarity in this range is exceptional for a speaker this size, making it ideal for critical listening.

The WONDERBOOM PLAY sacrifices some midrange clarity in favor of a more energetic, room-filling sound. It's designed to get the party started rather than reveal every detail in your favorite acoustic track.

Technical Features and Innovation

The Willen II introduces some forward-looking features, most notably support for Auracast - a new Bluetooth technology that will allow multiple people to listen to the same audio source simultaneously, similar to how you might share audio on certain wireless earbuds today. While this feature isn't active yet, it's coming in a future update and could be valuable for group viewing sessions or shared listening experiences.

Both speakers offer multi-device pairing, but implement it differently. The WONDERBOOM PLAY allows two source devices to be connected simultaneously, making it easy to switch between, say, your phone and laptop. The Willen II can remember up to eight paired devices but only maintains one active connection at a time.

Battery Life and Charging

Battery technology has improved significantly in recent years, and both speakers reflect this. The Willen II leads with 17 hours of playback and includes quick-charging capability - 20 minutes of charging provides 5.5 hours of playback, which I've found invaluable when preparing for impromptu outings.

The WONDERBOOM PLAY's 10-hour battery life is still respectable, especially considering its lower price point. Both speakers include auto-power-off features to conserve battery, though the Willen II's 20-minute timeout is more aggressive than the WONDERBOOM's 15 minutes.

Durability and Environmental Considerations

Both speakers carry IP67 ratings, meaning they're fully dustproof and can handle submersion in up to 1 meter of water for 30 minutes. However, only the WONDERBOOM PLAY floats, making it the better choice for pool-side use.

Ultimate Ears has made strides in sustainability, with the WONDERBOOM PLAY using 68% post-consumer recycled plastic. Marshall hasn't published specific recycling percentages for the Willen II, but they have improved their packaging to use more recyclable materials.

Value Proposition

At $49.99, the WONDERBOOM PLAY delivers remarkable value, especially for users prioritizing durability and room-filling sound. Its 360-degree audio and floating capability make it particularly appealing for outdoor and pool use.

The Willen II at $119.99 justifies its premium with superior battery life, better midrange clarity, and future-proofing features like Auracast support. The included app with EQ presets adds valuable customization options that the WONDERBOOM PLAY lacks.

How to Decide

Choose the WONDERBOOM PLAY if:

• You need an affordable, durable speaker for outdoor gatherings
• 360-degree sound coverage is important
• You'll use it around water frequently
• Maximum volume in a compact size is priority

Choose the Willen II if:

• You primarily listen to vocal-heavy content or acoustic music
• Battery life is crucial
• You want app-based sound customization
• You'll benefit from flexible mounting options
• Future Auracast support interests you

Both speakers represent different but valid approaches to portable audio. The WONDERBOOM PLAY excels as a social speaker, while the Willen II is more suited to personal listening and versatile mounting options. Your choice should ultimately depend on your primary use case and budget constraints.

Ultimate Ears WONDERBOOM PLAY Portable Wireless Bluetooth Speaker Deals and Prices

Marshall Willen II Portable Bluetooth Speaker Deals and Prices