Short answer: the Sony ULT Field 5. It ranks #59 of 120 large speakers by sound quality (rated 3.5/5) at $348 and is still sold new; the LG Xboom Go PL7 ranks #106 (rated 2.4/5) and is discontinued, so it is only an option used.
The Sony ULT Field 5 is the better-sounding option. A tough, waterproof party speaker with loud, bass focused output, an aux input, a power bank and a long battery. It supports LDAC Bluetooth, which the LG Xboom Go PL7 lacks. It links with other speakers (Party Connect up to 100 speakers), which the LG Xboom Go PL7 cannot. It has an adjustable EQ, which the LG Xboom Go PL7 lacks. The catch: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.
The LG Xboom Go PL7 is the lighter option. A fun, waterproof portable with glowing light rings, a long battery, and stereo pairing for casual outdoor listening, now discontinued. At 3.2 lbs (1.45 kg) it weighs much less than the Sony ULT Field 5 at 7.3 lbs (3.3 kg). The catch: Independent testing finds weak low-bass and top-end extension, a narrow soundstage and uneven off-axis response.
Buy the Sony ULT Field 5. It is rated higher for sound quality; the LG Xboom Go PL7 is no longer sold new.
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Specifications Side By Side
| Sony ULT Field 5 | LG Xboom Go PL7 | |
|---|---|---|
| Price | $348.00 | $70 Discontinued |
| Ranked | #59 of 120 in Large Size Portable Bluetooth Speakers | #106 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.3 | 5.0 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 9.6” x 3.9” x 3.9” (245 x 98 x 98 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 2x 58mm fullrange |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 3.2 lbs (1.45 kg) |
| Amplifier Power | 27W | 30W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | - |
| Maximum SPL | - | 95dB (measured by Alan Ross Reviews) |
| Lights | - | Yes |
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