Ultimate Ears

Ultimate Ears Wonderboom 4

Ranked #3 in Portable Bluetooth Speakers

816 LP on the category ladder what's LP?

Wirecutter's current all-around top pick with corroborating lab and community testing. The consensus default recommendation for most people.

Consolidated from 19 cited sources across 15 outlets

Where the cited sources landed, as we read them

9 positive sources
10 mixed sources

See the sources

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Pros & cons

✓ Sounds good, looks cool, and is quite rugged
✓ Near-360 sound with very long battery life
✓ Tasteful bass and stereo pairing
✓ Famously hard to kill - IP67 and floatable
✓ Minimal ports to fail (a single USB-C)

✗ Best suited to podcasts and audiobooks rather than critical listening
✗ Below the JBLs on pure capability

The sources behind this ranking

We searched the web and YouTube for what has been published about this product, then read the articles, video transcripts and comments we found. 1 outlet wouldn't let us check its link.

Evidence 11 articles, 7 video reviews and 1 community source

9 positive sources

TREBLAB SEO Treblab · reviewer

For those prioritizing ultra-portability, the Ultimate Ears Wonderboom 4 offers rugged durability and impressive audio in a compact package, while audiophiles willing to invest will find the Devialet Mania's premium engineering and adaptive sound technology unmatched.

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Pro Product Comparison Pro Product Comparison · 468 subscribers · Jun 2025

The Ultimate Ears Wonderboom 4 delivers a truly immersive 360° sound experience, projecting audio evenly in all directions. It's known for surprisingly bigger 360° sound and deep bass for its size. It also features an outdoor boost mode. This button-activated mode instantly enhances loudness and clarity for open-air environments, making it ideal for picnics or beach trips.

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TechRadar Article

That’s right, I’m pitting the Clip 5 against the Ultimate Ears Wonderboom 4 , which is an astonishingly punchy Bluetooth speaker given its mini size. It’s pretty rugged as well, and I’m a huge fan of its eye-catching aesthetic.

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TechVibe World TechVibe World · 217 subscribers · Sept 2025

I found the build quality of this speaker really impressive. Its barrel shape fits nicely in my hand, making it comfortable to hold. The exterior is covered in durable fabric, while the top and bottom are covered with strong plastic caps, giving it a pretty premium feel. It's just over 4 in tall and about 3 and 1/2 in wide weighing just under a pound.

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LinkedIn dormakaba · reviewer

Independent reviewers and many users also praise its balanced 360° sound and rugged design, especially considering its compact size.

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Christopher reviews Christopher reviews · 113 subscribers · Jul 2026

So would definitely recommend this.

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TechGearLab Article Read W

Wirecutter Article Read B r/Bluetooth_Speakers Reddit thread Read thread

10 mixed sources

Mashable Bethany Allard · reviewer

The Ultimate Ears Wonderboom 4 is not a must-have upgrade for anyone who owns the Wonderboom 3, but like the former version, it's a powerhouse for its size and price. This speaker's small (and rugged enough) to take along for a hike, while traveling, and for tossing next to the pool. Plus, it's so easy to find on sale that it's often available at a cheaper price than the older Wonderboom 3.

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Welcome Back to the Kitchen! Welcome Back to the Kitchen! · 1.3K subscribers · Jul 2024

This speaker sounds really, really good depending upon what you're listening to and how loud you're listening to it. For my bass torture test, I could only bring it up to about 30 35% volume before those tones started complaining. And my high frequency test, I could bring it up to about 70% volume before I started getting that unpleasant distortion. However, for most music that sounds fantastic at

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SoundGuys Dave Carr · reviewer

The new Ultimate Ears Wonderboom 4 doesn't offer many upgrades over the 3, and the UE app still doesn't support it. The change to a USB-C charging port is welcome, but a new Podcast EQ setting is hardly anything to get excited about. That said, the Wonderboom 4 is still a durable, ultra-portable, and convenient speaker for a solo hike or when it's just you and a few friends.

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Pro Product Comparison Pro Product Comparison · 468 subscribers · Oct 2025

Bass is punchy and aggressive, but the sound stage feels less refined. Vocals and instruments blur at higher volumes. Outdoor boost mode cranks upper mid-range and cuts bass for projecting farther outdoors. Is functional but doesn't sound pleasant. Loud over nuanced. Podcast mode enhances vocal clarity. No app support means you're stuck with three presets.

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SoundGuys Dave Carr · reviewer

The new Ultimate Ears Wonderboom 4 doesn't offer many upgrades over the 3, and the UE app still doesn't support it. The change to a USB-C charging port is welcome, but a new Podcast EQ setting is hardly anything to get excited about. That said, the Wonderboom 4 is still a durable, ultra-portable, and convenient speaker for a solo hike or when it's just you and a few friends.

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Digital Forge Digital Forge · 13 subscribers · May 2026

I don't I don't know if that's technically what it does, but uh you there there a decrease in the amount of that you get when you pump it up for the boosted sound, but I usually just leave mine at standard, so uh the positives are it sounds great. They sound great, especially when paired together. Uh when you get them to the sync and like party mode, I think it's called, and uh which is all right.

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HomeTechnologyReview Article

The Ultimate Ears WONDERBOOM 4 uses modern Bluetooth 5.2 technology, offering better range, more stable connections, and lower latency compared to the JBL Charge 4's older Bluetooth 4.2. This makes the WONDERBOOM 4 better for watching videos without audio delays.

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Gimmick or Gold Gimmick or Gold · channel · Aug 2026

Uh the negatives and and I'm not going to spend a lot of time on this obviously, but the negatives would be that these batteries are advertised to last 14 hours up to 14 hours of play time. Now, I'm imagining that if you play these speakers at let's say on a a scale of 1 to 10, you play them around three you know, four then you'll obviously get a lot longer.

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TechRadar Article

Bass heads may prefer the weight of the Wonderboom 4, but the ES20 still offers a punchy and relatively clear low-end effort. Just don’t expect it to hit those deep dark notes in the sub-bass realm.

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TREBLAB SEO Treblab · reviewer

Podcast Mode reduces bass unnecessarily

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Frequently asked questions

It ranks #3 of 21 on our portable bluetooth speakers tier list, in A tier. That placement draws on 19 cited sources across 15 outlets.

None of the 19 sources with a clear view is critical of it. Best suited to podcasts and audiobooks rather than critical listening. Below the JBLs on pure capability.

On our portable bluetooth speakers board, Ultimate Ears Wonderboom 4 ranks #3 (A tier) ahead of Harman Kardon Go + Play 3 at #15 (D tier). Harman Kardon Go + Play 3: Last because it fails the category itself: a shelf speaker wearing a handle, with weak battery life, weak ingress protection, and the weakest support story here. Buy the Bose SoundLink Max or JBL Charge 6.

On our portable bluetooth speakers board, JBL Flip 7 ranks #2 (A tier) ahead of Ultimate Ears Wonderboom 4 at #3 (A tier). JBL Flip 7: The mid-range consensus pick, named best overall by Ecoustics and a current editor's reach-for at TechRadar.