Short answer: the Tribit Stormbox Flow for battery life and USB-C phone charging. It runs up to 30 hours, roughly double most rivals, adds an IP67 carry handle and a USB-C port that charges your phone, though it is not stereo on its own and its midrange and bass are recessed about 4dB below 700Hz. The Ultimate Ears Boom 3 has a rugged IP67 floating shell and pairing for up to 150 speakers but only about 15 hours and thin bass.
Buy the Tribit Stormbox Flow. It is rated higher for sound quality than the Ultimate Ears Boom 3 and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Boom 3 | Tribit Stormbox Flow | |
|---|---|---|
| Price | $134.99 | $79.99 |
| Ranked | #95 of 145 in Medium Size Portable Bluetooth Speakers | #53 of 145 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 91Hz | 47Hz |
| Battery Life | 15 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Input | Micro USB | USB-C |
| Stereo | Yes | No |
| Omnidirectional | Yes | Pointing up |
| Weight | 1.3 lbs (608 g) | 1.4 lbs (657 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators | 60W: 2x 30mm drivers + passive radiators |
| TWS | Yes | Yes |
| EQ | Yes (via app) | Yes |
| Built-in Microphone | No | - |
| Maximum SPL | 87dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) | Yes |
| Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
| Bluetooth Latency | - | 400ms aac, 200ms sbc |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 25W |
Related Speaker Comparisons
How Tribit Stormbox Flow compares with other leading options:
- Earfun Uboom L vs Tribit Stormbox Flow
- Soundcore Motion 300 vs Tribit Stormbox Flow
- Soundcore Motion+ vs Tribit Stormbox Flow
- Soundcore Boost “upgraded” 2021 vs Tribit Stormbox Flow
- Minirig 4 vs Tribit Stormbox Flow
Prices on this page were last checked September 26, 2026 at 11:14 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 3: $134.99 Amazon eBay
Newer model: the Ultimate Ears Boom 4, ranked higher, rated 2.9/5.
Pros: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp. Measured bass extension of 91Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Boom 3 review and specifications →
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 91Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (608 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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Tribit Stormbox Flow: $79.99 Tribit eBay
Pros: Up to 30 hours of battery life - roughly double most rivals (~20-24 hrs with XBass on). IP67 rated with a loose handle for carrying/hanging. Pairs with a second Flow for stereo; USB-C port charges your phone too. Measured bass extension of 47Hz (-10dB).
Cons: Not stereo. Midrange and bass are weirdly recessed about 4db below 700Hz. You need xbass mode for it to not sound like a clock radio with missing bass. You also can’t turn up the bass enough in the custom EQ modes to get it neutral, so it will sound bass light. Firmware 1.2.3 fixes the distortion issues with xbass mode on, but bass still sounds wobbly and uncontrolled.
Full Tribit Stormbox Flow review and specifications →
| Amplifier Power | 25W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Latency | 400ms aac, 200ms sbc |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.6” x 2.1” (200 x 91 x 53 mm) |
| Drivers | 60W: 2x 30mm drivers + passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.4 lbs (657 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but……….. More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.3 game changing moment in portable bluetooth history!
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- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs XSound Mega - Sound Comparison, Stock EQ, Both Mono Sound 😶🌫️ A Family Feud More from JaysStraightUpReviews →
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- Oluv Patreon: Tribit Stormbox Flow - after firmware update More from Oluv’Sone →
- Oluv Patreon: Tribit Stormbox Flow - sound demo
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