Short answer: the Sony ULT Field 1. It ranks #100 of 175 medium speakers by sound quality (rated 3.1/5) at $138 and is still sold new; the Sony SRS-XB30 ranks #133 (rated 2.6/5) and is discontinued, so it is only an option used. The Sony SRS-XB30’s replacement, the Sony ULT Field 3, is rated 3.4/5 at $208.
The Sony ULT Field 1 is the better-sounding, lighter choice. IP67 rated, survives drops and 1m submersion. At 1.4 lbs (650 g) it weighs noticeably less than the Sony SRS-XB30 at 2.2 lbs (1 kg). It is rated IP67 against IPX5 for the Sony SRS-XB30. It charges over USB-C rather than Micro USB. The catch: Upper midrange peak, rolled off treble.
The Sony SRS-XB30 is the longer-running option. A compact 2.2 lbs (1 kg) portable with IPX5 splash protection, aux input, LDAC/AAC support, Sony’s app, speakerphone capability, power-bank output, stereo pairing and Party Chain linking. It is rated for 24 hours of battery against 12 for the Sony ULT Field 1. It supports LDAC Bluetooth, which the Sony ULT Field 1 lacks. It keeps a wired aux input, which the Sony ULT Field 1 lacks. The tradeoff: Independent lab listening rates music fidelity only fair: bass has impact but is boomy and lacks the deepest notes, while the midrange can sound hazy, muffled and grainy.
Buy the Sony ULT Field 1. It is rated higher for sound quality and still sold new, while the Sony SRS-XB30 is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 1 | Sony SRS-XB30 | |
|---|---|---|
| Price | $138.00 | $199 Discontinued |
| Ranked | #100 of 175 in Medium Size Portable Bluetooth Speakers | #133 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Sony Music Center) |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Partychain up to 100 speakers) |
| Power Bank | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 2.2 lbs (1000 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 2x 48mm full-range drivers + 2x passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | - |
| Bass Extension (-10dB) | - | 55Hz |
| Amplifier Power | - | 20W |
| Maximum SPL | - | 95dB (Manufacturer specified) |
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Prices on this page were last checked October 12, 2026 at 4:13 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 1: $138.00 Amazon $138.00 eBay
Older models: the Sony XB23 (ranked higher, rated 3.3/5), the Sony SRS-XB20 (ranked lower, rated 2.8/5), the Sony SRS-XB21 (ranked lower, rated 2.7/5) and the Sony SRS-XE200 (ranked lower, rated 2.5/5). See every Sony XB and ULT generation.
Same family: the Sony ULT Field 7 (larger model, rated 3.2/5), the Sony ULT Tower 10 (larger model, rated 3.9/5), the Sony ULT Field 3 (larger model, ranked higher, rated 3.4/5), the Sony ULT Field 5 (larger model, rated 3.5/5), the Sony ULT Tower 5 (larger model, rated 4.5/5), the Sony ULT Tower 7 (larger model, rated 4.7/5), the Sony ULT Tower 9 (larger model, rated 4.2/5) and the Sony ULT Tower Max (larger model, rated 4.8/5).
Pros: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1.
Cons: Upper midrange peak, rolled off treble
Full Sony ULT Field 1 review and specifications →
| Released | Apr 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 1.4 lbs (650 g) |
- Links
- Reviews, Comparisons and Sound Samples
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- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
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Sony SRS-XB30: $199 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5, released Apr 2025. See every Sony XB and ULT generation.
Pros: A compact 1kg portable with IPX5 splash protection, aux input, LDAC/AAC support, Sony’s app, speakerphone capability, power-bank output, stereo pairing and Party Chain linking. It reaches a useful 95dB maximum level and has a claimed 24-hour battery life at moderate volume, making it a convenient older outdoor option. Measured bass extension of 55Hz (-10dB).
Cons: Independent lab listening rates music fidelity only fair: bass has impact but is boomy and lacks the deepest notes, while the midrange can sound hazy, muffled and grainy. Its micro-USB charging and older Bluetooth 4.2 platform now feel dated, so it is best considered for features and used-market value rather than sound quality. Discontinued.
Full Sony SRS-XB30 review and specifications →
| Released | Mar 2017 (9 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | Yes (Sony Music Center) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) |
| Drivers | 2x 48mm full-range drivers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IPX5 |
| Maximum SPL | 95dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.2 lbs (1000 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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