Short answer: the Sony ULT Field 5. It ranks #55 of 102 large speakers by sound quality (rated 3.5/5) at $348 and is still sold new; the Dali Katch G1 ranks #83 (rated 2.8/5) and is discontinued, so it is only an option used.
The Sony ULT Field 5 is the better-sounding option. A tough 7.3 lbs (3.3 kg) portable with IP67 protection, LDAC/AAC support, aux input, a 10-band app EQ, Party Connect, USB-C power-bank output and a claimed 25-hour battery. It supports LDAC Bluetooth, which the Dali Katch G1 lacks. It links with other speakers (Party Connect up to 100 speakers), which the Dali Katch G1 cannot. It has an adjustable EQ, which the Dali Katch G1 lacks. Watch for: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.
The Dali Katch G1 is the lighter choice. Pretty neutral. At 2.4 lbs (1.1 kg) it weighs much less than the Sony ULT Field 5 at 7.3 lbs (3.3 kg). The catch: Loses bass quickly after 40% volume.
Buy the Sony ULT Field 5. It is rated higher for sound quality, and the Dali Katch G1 is discontinued, so it is only available used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 5 | Dali Katch G1 | |
|---|---|---|
| Price | $348.00 | $279 Discontinued |
| Ranked | #55 of 102 in Large Size Portable Bluetooth Speakers | #83 of 102 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, aptX |
| Bluetooth Version | 5.3 | 4.0 |
| Built-in Microphone | Yes | Yes |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 10.6” x 5.4” x 1.9” (269 x 138 x 47 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 2x 89mm woofers, 2x 21mm tweeters |
| 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) | 2.4 lbs (1.1 kg) |
| Amplifier Power | 27W | 50W RMS |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | - |
| Charging Time | - | 2 hours |
| Frequency Response | - | 49Hz - 23kHz (Manufacturer specified) |
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- Sony ULT Field 5 vs Brane X
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Prices on this page were last checked October 4, 2026 at 9:58 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
Sony ULT Field 5: $348.00 Amazon eBay
Older models: the Sony SRS-XB43 (ranked lower, rated 3.5/5) and the Sony SRS-XG300 (ranked lower, rated 3.1/5).
Pros: A tough 3.3kg portable with IP67 protection, LDAC/AAC support, aux input, a 10-band app EQ, Party Connect, USB-C power-bank output and a claimed 25-hour battery. Reviews find it energetic and dynamic with substantial bass, enough volume for a yard, and two ULT modes that let bass-focused listeners choose a deeper or punchier presentation.
Cons: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth. Deep bass is less authoritative than the enclosure suggests, and the loud confirmation tone when pressing the ULT button is an unnecessary annoyance. Use the app EQ and audition it before buying for detail-focused music.
Full Sony ULT Field 5 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm 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) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 7.3 lbs (3.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Don’t TOUCH that ULT Button! Sony ULT Field 5 Review More from DannyPops →
- Mark Ellis Reviews: Sony just changed summer sound 🤨 | Sony ULT Field 5 & 3 Review
- Dominik Reviews: Sony ULT Field 5 vs JBL Xtreme 4 - Outdoor Sound Test - Sony shines or not? More from Dominik Reviews →
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test More from Oluv’Sone →
- Mateusz Cholewa: SONY ULT Field 5 vs BOGASING S8 PRO MAX More from Mateusz Cholewa →
- Mateusz Cholewa: MARSHALL Kilburn 3 vs SONY ULT Field 5
- Head-to-Head Comparisons
Dali Katch G1: $279 Discontinued eBay
Newer model: the Dali Katch G2, ranked higher, rated 2.8/5.
Pros: Pretty neutral
Cons: Loses bass quickly after 40% volume. A lot of compression artifacts at high volume. External AC power brick for charging. Discontinued, superseded by the Dali Katch G2, which sounds nearly identical. Reverb added to the output screws up the imaging. Quite a hollow character to the sound.
Full Dali Katch G1 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, aptX |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Charging Time | 2 hours |
| Digital Aux Input | No |
| Dimensions | 10.6” x 5.4” x 1.9” (269 x 138 x 47 mm) |
| Drivers | 2x 89mm woofers, 2x 21mm tweeters |
| EQ | No |
| Frequency Response | 49Hz - 23kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons