Short answer: the Ultimate Ears Boom 4, though neither ranks well in its class. It ranks #93 of 144 medium speakers by sound quality, rated 2.9/5, at $119.99; the LG Xboom Go PL5 ranks #119, rated 2.4/5, and costs $179, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 144 medium speakers, and the Earfun Uboom L, ranked #1 at $49.79, is a better place to start if sound quality matters.
What the Ultimate Ears Boom 4 does well: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. The catch: Not much improvement over the old ones.
The case for the LG Xboom Go PL5: 18 hour battery life; IPX5 rated. The tradeoff: Barely any bass.
Buy the Ultimate Ears Boom 4. It is rated higher for sound quality than the LG Xboom Go PL5 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 4 | LG Xboom Go PL5 | |
|---|---|---|
| Price | $119.99 | $179.00 |
| Ranked | #93 of 144 in Medium Size Portable Bluetooth Speakers | #119 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (LG XBOOM App) |
| Battery Life | 15 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX5 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 1.4 lbs (620 g) | 1.4 lbs (640 g) |
| Bluetooth Version | 5.1 | - |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) | 7.9” x 3.1” x 3.1” (201 x 79 x 79 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators | 2x 1.75-inch woofers + 2x passive radiators |
| TWS | Yes | Yes |
| EQ | Yes (via app) | Yes (via app) |
| Built-in Microphone | No | Yes |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Maximum SPL | 85dBC (Manufacturer specified) | 100dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| Strap | Yes (built-in loop) | - |
| Bass Extension (-10dB) | - | 71Hz |
| Party Mode | - | Yes (Wireless Party Link, up to 100 speakers) |
| Amplifier Power | - | 20W |
| Lights | - | Yes |
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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 4: $119.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (rated 2.9/5).
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 →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| 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
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LG Xboom Go PL5: $179.00 Amazon eBay
Pros: 18 hour battery life; IPX5 rated. LED lights sync to music via the LG XBOOM app; Wireless Party Link connects up to 100 speakers. USB-C charging. Measured bass extension of 71Hz (-10dB).
Cons: Barely any bass. 14kHz peak, bright on top. Soundboost mode makes the top end even harsher.
Full LG Xboom Go PL5 review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes (LG XBOOM App) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 71Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.1” x 3.1” (201 x 79 x 79 mm) |
| Drivers | 2x 1.75-inch woofers + 2x passive radiators |
| EQ | Yes (via app) |
| IP Rating | IPX5 |
| Lights | Yes |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Wireless Party Link, up to 100 speakers) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs (640 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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