Short answer: the Sony ULT Field 1 for better sound quality, the Dayton Audio Boost for the lower price. The Sony ULT Field 1 ranks #86 of 150 medium speakers, rated 3.1/5, at $138. The Dayton Audio Boost ranks #129, rated 2.4/5, at $29.98, $108.02 cheaper.
Why pick the Sony ULT Field 1: IP67 rated, survives drops and 1m submersion. The tradeoff: Upper midrange peak, rolled off treble.
Why pick the Dayton Audio Boost: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. The tradeoff: Some midrange peaks, treble slightly rolled off.
Buy the Sony ULT Field 1 when sound quality outweighs the price for you, and the Dayton Audio Boost when the price outweighs sound quality instead.
Battery life favors the Sony ULT Field 1: rated for 12 hours against 6 hours for the Dayton Audio Boost.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sony ULT Field 1 | Dayton Audio Boost | |
|---|---|---|
| Price | $138.00 | $29.98 |
| Ranked | #86 of 150 in Medium Size Portable Bluetooth Speakers | #129 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Party Connect up to 100 speakers) | - |
| Power Bank | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 0.9 lbs (426 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 8.1” x 3” x 3” (206 x 77 x 76 mm) | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 2x 1.5” full-range drivers + 2x passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | - |
| Bass Extension (-10dB) | - | 87Hz |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked September 30, 2026 at 2:57 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 eBay
Older models: the Sony XB23 (ranked higher, rated 3.3/5) and the Sony SRS-XB20 (ranked lower, rated 2.8/5).
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 →
| 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
- Head-to-Head Comparisons
- Sony ULT Field 1 vs JBL Grip
- Sony ULT Field 1 vs Treblab HD77
- Sony ULT Field 1 vs Tribit Xsound Go
- Sony ULT Field 1 vs Tronsmart Mirtune S100
- Sony ULT Field 1 vs KEF Muo gen2
- Sony ULT Field 1 vs Tronsmart Mirtune C3
- Sony ULT Field 1 vs Tribit Xsound Surf
- Sony ULT Field 1 vs Sonos Roam
- See all 133 comparisons
Dayton Audio Boost: $29.98 Amazon eBay
Pros: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. Measured bass extension of 87Hz (-10dB).
Cons: Some midrange peaks, treble slightly rolled off. Not much bass. Same hardware as the Boat Stone 350/352/358
Full Dayton Audio Boost review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 87Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 2x 1.5” full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.9 lbs (426 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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