Short answer: the Sound Party, and it costs less too. It ranks #60 of 142 medium speakers against the ULT Field 3’s #19, a 41 place gap, while costing $4.38 less.
The Sound Party measures more balanced across the board. Its pros describe it as sounding pretty balanced overall, more neutral than the JBL Charge 5, and note it plays clean out of the box, unlike the JBL Charge 6’s default tuning, which has noticeable mid distortion. Its own text even calls it one of the best-performing speakers for its price and size. The ULT Field 3, by contrast, has cons describing a hollow sound with boosted treble, plus a documented quirk where its custom EQ and ULT bass-boost button cannot run together, leaving bass very weak with ULT off.
The Sound Party is not flawless either. Its cons note bass can sound slightly thuddy at high volume with a 180Hz peak, and that both bass and treble are noticeably boosted by default, something neutral-sound listeners may want to EQ down. It also cannot match the Soundcore Boom 2 on raw bass output and loudness.
What the Sound Party adds:
- 50W of output power against the ULT Field 3’s 27W, plus a measured 54Hz bass extension.
- A slightly longer 26 hour battery life, versus 24 hours on the ULT Field 3.
- Multi-voltage USB-C power input, useful with higher-wattage chargers.
What the ULT Field 3 keeps: true stereo output and AAC/LDAC Bluetooth codec support, versus the Sound Party’s mono, SBC-only setup.
Buy the Sound Party for more balanced, cleaner-sounding output at a lower price, and expect to dial the EQ down slightly if you want it fully neutral.
Buy the ULT Field 3 only if stereo separation or LDAC codec support specifically matter to you more than overall tonal balance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sony ULT Field 3 | Xiaomi Sound Party | |
|---|---|---|
| Price | $138.00 | $133.62 |
| Ranked | #60 of 142 in Medium Size Portable Bluetooth Speakers | #19 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 26 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.2 | 5.4 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) | 10" x 3.6" x 3.6" (255 x 92 x 92 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer | 2x 40mm woofers (35W total) + 2x 15mm tweeters |
| EQ | Yes (App + ULT button) | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Party Connect, up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) | Yes (USB-C, 5V/3A) |
| Power Input | USB-C | USB-C (5V/3A, 9V/2A, 12V/2A) |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 2.6 lbs (1.2 kg) | 2.6 lbs (1200 g) |
| Amplifier Power | 27W | 50W |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 54Hz |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | - | 102dB (measured by Alan Ross Reviews) |
| Lights | - | Yes |
Related Speaker Comparisons
How Xiaomi Sound Party compares with other leading options:
- Xiaomi Sound Party vs Earfun Uboom L
- Soundcore Motion 300 vs Xiaomi Sound Party
- Soundcore Motion+ vs Xiaomi Sound Party
- Xiaomi Sound Party vs Minirig 4
- B&O Beosound A1 vs Xiaomi Sound Party
Prices on this page were last checked September 22, 2026 at 5:11 AM 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
Sony ULT Field 3: $138.00 Amazon eBay
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together - turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
Full Sony ULT Field 3 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.6 lbs (1.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 3 vs Bose Soundlink Mini
- Sony ULT Field 3 vs Xiaomi Mi Portable
- Sony ULT Field 3 vs Sony XB33
- Sony ULT Field 3 vs Bose Soundlink Mini 2
- Sony ULT Field 3 vs Soundcore 3/Soundcore Select 2
- Sony ULT Field 3 vs Turtlebox Ranger
- Sony ULT Field 3 vs Beats Pill 2024
- Sony ULT Field 3 vs JBL Flip 5
- See all 94 comparisons
Xiaomi Sound Party: $133.62 Aliexpress eBay
Pros: An unusually versatile 1.2kg outdoor speaker: IP67 dust/water protection, USB-C power-bank output, NFC pairing, lights, stereo pairing and a claimed 26-hour battery life. Several independent reviews describe a warm, generally balanced sound with clear vocals and useful bass impact when Bass Boost is off. It is also easy to carry thanks to the retractable handle. Measured bass extension of 54Hz (-10dB).
Cons: The sound evidence is mixed rather than universally glowing. One lab review found it loud but flat and unclean with blurred treble, while others hear the Bass Boost mode as boomy upper bass that can bottom out at high volume. It is not the strongest choice for a large party: tested output is around 94dB and rivals such as the Soundcore Boom 2 play louder with deeper bass. SBC is the only Bluetooth codec and there is no aux input.
Full Xiaomi Sound Party review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 26 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10" x 3.6" x 3.6" (255 x 92 x 92 mm) |
| Drivers | 2x 40mm woofers (35W total) + 2x 15mm tweeters |
| EQ | Yes |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Lights | Yes |
| Maximum SPL | 102dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect, up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/3A) |
| Power Input | USB-C (5V/3A, 9V/2A, 12V/2A) |
| Stereo | No |
| TWS | Yes |
| Weight | 2.6 lbs (1200 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Xiaomi Sound Party - Best Bluetooth Speaker 2026 award More from Oluv’Sone →
- Oluv Patreon: Xiaomi Sound Party - first look
- Oluv Patreon: Xiaomi Sound Party - outdoor test
- Oluv Patreon: Xiaomi Sound Party vs Boom 2 & Helsinki
- Alan Ross: JBL Charge 6 vs Xiaomi Sound Party – Honest No-BS Comparison More from alanrossreviews →
- Alan Ross: Xiaomi Sound Party or Soundcore Boom 2 - 4 db louder?!
- Grimluck: XIAOMI Sound Party Review and Comparison (Jbl charge and Xiaomi outdoor)
- Jefferson C: XIAOMI Sound Party 2025
- Head-to-Head Comparisons
- Xiaomi Sound Party vs Tribit Xsound Mega
- Xiaomi Sound Party vs B&O Beosound A1 3rd gen
- Xiaomi Sound Party vs Tribit Maxsound Plus/Thunderbox Plus
- Xiaomi Sound Party vs Harman Kardon Luna 2
- Xiaomi Sound Party vs Harman Kardon Luna
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- See all 63 comparisons