Short answer: the Sony ULT Field 1 if sound quality matters most, the DOSS Soundbox Pro if price matters most. The Sony ULT Field 1 ranks #99 of 182 medium speakers, rated 3.1/5, at $138. The DOSS Soundbox Pro ranks #174, rated 2.1/5, at $29.99, $108.01 cheaper.
The Sony ULT Field 1 is the better-sounding choice. A tough, waterproof small speaker that survives drops, with long real world battery life and stereo pairing. It charges over USB-C rather than Micro USB. The tradeoff: Upper midrange peak, rolled off treble.
The DOSS Soundbox Pro is the longer-running option. An inexpensive water resistant stereo speaker with an extra bass button, LED lights, a long rated battery and an aux input. It is rated for 20 hours of battery against 12 for the Sony ULT Field 1. It keeps a wired aux input, which the Sony ULT Field 1 lacks. It plays in stereo from a single unit, unlike the Sony ULT Field 1. Watch for: Barely any bass.
Buy the Sony ULT Field 1 when sound quality outweighs the price for you, and the DOSS Soundbox Pro when the price outweighs sound quality instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Sony ULT Field 1 | DOSS Soundbox Pro | |
|---|---|---|
| Price | $138.00 | $29.99 |
| Ranked | #99 of 182 in Medium Size Portable Bluetooth Speakers | #174 of 182 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes (extra bass button) |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (Party Connect 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) | 1.2 lbs (558 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) | 7.8” x 3” x 3” (197 x 75 x 75 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator | 52mm dual woofers + passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | - |
| MicroSD Playback | - | Yes |
| Amplifier Power | - | 20W |
| Lights | - | Yes |
Where the Ratings Come From
- Sony ULT Field 1: reviews by Techder Audios, Jay’s Straight Up Reviews & More and Storytripper HD.
- DOSS Soundbox Pro: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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