Short answer: the Earfun Uboom 360 for the better 360 presentation, the Ultimate Ears Boom 3 for battery and PartyUp pairing. The Uboom 360 likely shares drivers with the Maxsound Plus and is likely the best 360 speaker around, though it is not stereo, rolls off slightly in the treble and is not as deep in bass as the best in its category. The Boom 3 adds an excellent 15-hour battery and IP67 floating construction.
The Ultimate Ears Boom 3 impresses with: Rich, warm bass without muddying the mix, crisp highs, an excellent 15-hour battery life, stable Bluetooth, an IP67-rated floating design with a rugged fabric shell, and the ability to pair with up to 150 speakers via PartyUp. It comes up short on: not being stereo, barely any bass, recessed treble, still shipping with micro USB, plenty of reports of failing batteries on Amazon, and not technically being a 360 speaker, only firing front and rear.
The Earfun Uboom 360’s pitch: It sounds similar to the Maxsound Plus, likely sharing the same drivers, and is likely the best 360 speaker around. The compromise: it isn’t stereo, has slightly rolled off treble and not as deep bass as the best in its category, and isn’t technically a 360 speaker, only firing front and rear (outdoor mode is flatter, indoor mode boosts bass).
Buy the Ultimate Ears Boom 3 if you want one new; the Earfun Uboom 360 is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Boom 3 | Earfun Uboom 360 | |
|---|---|---|
| Price | $134.99 | $42 Discontinued |
| Ranked | #95 of 145 in Medium Size Portable Bluetooth Speakers | #32 of 145 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 91Hz | 61Hz |
| Battery Life | 15 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Input | Micro USB | USB-C (5V/2A) |
| Stereo | Yes | No |
| Omnidirectional | Yes | Yes |
| Weight | 1.3 lbs (608 g) | 1.3 lbs (585 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Version | 4.2 | 5.0 |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) | 6.6”H x 3.5”W x 3.5”D (166.5 x 88 x 88 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators | Dual 63mm woofers + dual tweeters |
| TWS | Yes | Yes |
| EQ | Yes (via app) | No |
| Built-in Microphone | No | Yes |
| Maximum SPL | 87dB (Manufacturer specified) | 100dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) | No |
| Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
| Amplifier Power | - | 24W (2 x 12W) |
Related Speaker Comparisons
More worthwhile head-to-heads for Earfun Uboom 360:
- JBL Charge 6 vs Earfun Uboom 360
- JBL Flip 7 vs Earfun Uboom 360
- Tribit Xsound Go vs Earfun Uboom 360
- Ultimate Ears Boom 3 vs Bogasing M5
- Ultimate Ears Boom 3 vs W-King D8 Mini
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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Earfun Uboom 360: $42 Discontinued eBay
Pros: Similar to the Maxsound Plus in sound, likely uses the same drivers. Likely the best 360 speaker. Measured bass extension of 61Hz (-10dB).
Cons: Not stereo. Slightly rolled off treble, not as deep of bass as the best in category. Outdoor mode is more flat, indoor mode boosts bass. Not technically a 360 speaker, only front and rear. Discontinued and no longer sold new.
Full Earfun Uboom 360 review and specifications →
| Amplifier Power | 24W (2 x 12W) |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 61Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.6”H x 3.5”W x 3.5”D (166.5 x 88 x 88 mm) |
| Drivers | Dual 63mm woofers + dual tweeters |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Power Input | USB-C (5V/2A) |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs (585 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons