Short answer: the Ultimate Ears Boom 4, though neither ranks well in its class. It ranks #113 of 175 medium speakers by sound quality (rated 2.9/5) at $129.99 and is still sold new; the Tribit Stormbox Mini ranks #148 (rated 2.4/5) and is discontinued, so it is only an option used. The Tribit Stormbox Mini’s replacement, the Tribit Stormbox Mini+, is rated 2.5/5 at $31.99. Both are rated below 3.0/5 among the 175 medium speakers, and the EarFun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
The Ultimate Ears Boom 4 is the better-sounding pick. IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. It has an adjustable EQ, which the Tribit Stormbox Mini lacks. Watch for: Not much improvement over the old ones.
What the Tribit Stormbox Mini does well: IPX7 waterproof, excellent battery life (12 hours), RGB LED lighting, app support with AAC codec, true wireless stereo (TWS) capability, USB-C charging. It supports AAC Bluetooth, which the Ultimate Ears Boom 4 lacks. It keeps a wired aux input, which the Ultimate Ears Boom 4 lacks. The tradeoff: Lacking quite a bit of bass.
Buy the Ultimate Ears Boom 4. It is rated higher for sound quality and still sold new, while the Tribit Stormbox Mini is discontinued.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Boom 4 | Tribit Stormbox Mini | |
|---|---|---|
| Price | $129.99 | $23 Discontinued |
| Ranked | #113 of 175 in Medium Size Portable Bluetooth Speakers | #148 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 1.4 lbs (620 g) | 1.6 lbs (708 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.4 |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) | 3.6” x 3.6” x 4.7” (91 x 91 x 119 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators | 2x 48mm 6W full-range drivers + 1x passive radiator |
| TWS | Yes | Yes |
| EQ | Yes (via app) | No |
| Built-in Microphone | No | Yes |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Maximum SPL | 85dBC (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| Strap | Yes (built-in loop) | - |
| Bass Extension (-10dB) | - | ~85Hz |
| Lights | - | Yes |
| Amplifier Power | - | 12W |
Related Speaker Comparisons
How Ultimate Ears Boom 4 compares with other leading options:
- Ultimate Ears Boom 4 vs EarFun Uboom L
- Soundcore Motion 300 vs Ultimate Ears Boom 4
- Soundcore Motion+ vs Ultimate Ears Boom 4
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Boom 4
- Ultimate Ears Boom 4 vs Minirig 4
Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Ultimate Ears Boom 4: $129.99 Amazon $129.99 eBay
Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).
Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.
Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Full Ultimate Ears Boom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
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- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
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Tribit Stormbox Mini: $23 Discontinued eBay
Newer model: the Tribit Stormbox Mini+, ranked higher, rated 2.5/5, released Jul 2025. It adds app control and adjustable EQ. See every Tribit Stormbox Mini generation.
Pros: IPX7 waterproof, excellent battery life (12 hours), RGB LED lighting, app support with AAC codec, true wireless stereo (TWS) capability, USB-C charging. Measured bass extension of ~85Hz (-10dB).
Cons: Lacking quite a bit of bass. Sounds hollow and thuddy. Just not great overall. Discontinued; Tribit has retired it, superseded by the Tribit Stormbox Mini+.
Full Tribit Stormbox Mini review and specifications →
| Released | Aug 2024 (2 years ago) |
|---|---|
| Amplifier Power | 12W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~85Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.6” x 3.6” x 4.7” (91 x 91 x 119 mm) |
| Drivers | 2x 48mm 6W full-range drivers + 1x passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| Lights | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.6 lbs (708 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Dominik Reviews: Tribit Stormbox Mini - 30$ hit or miss? vs Tribit Micro 2 More from Dominik Reviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Mini - Bluetooth Speaker Review 🥴Did Tribit Miss the Mark 🎯 On This One?🤔 More from JaysStraightUpReviews →
- Storytripper HD: Tribit Micro 2 vs Tribit STormBox 2 vs Tribit StormBox Mini More from storytripperhd →
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