Short answer: both are discontinued, so this only matters if you are buying used. Used, the Dockin D Fine is the better pick: it ranks #36 of 120 large speakers by sound quality (rated 3.9/5), against #60 (rated 3.5/5) for the Sony SRS-XB43. If you want one new, the Sony ULT Field 5 replaces the Sony SRS-XB43 and is rated 3.5/5 at $348.
In its favor, the Sony SRS-XB43: It delivers a full, warm sound with deep, rich bass thanks to twin passive radiators, backs that up with an IPX7 rugged build, up to 24 hours of battery (14 with the lights on), and party lights for visual flair. Against it: it isn’t as loud as others in its category and will automatically turn itself down rather than stay at max volume.
The Dockin D Fine’s pitch: It doubles as a power bank. The compromise: its bass is slightly boosted.
Buy the Dockin D Fine only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, buy the Sony ULT Field 5, which replaces the Sony SRS-XB43.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 11, 2026 at 3:26 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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Specifications Side By Side
| Sony SRS-XB43 | Dockin D Fine | |
|---|---|---|
| Price | $150 Discontinued | $110 Discontinued |
| Ranked | #60 of 120 in Large Size Portable Bluetooth Speakers | #36 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 53Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth Latency | 85ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-A, 5V/1A) | No |
| Weight | 6.5 lbs (2.95 kg) | 4.3 lbs (1930 g) |
| App | Yes (Sony Music Center App) | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (3 band) | No |
| IP Rating | IP67 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.0 | 4.0 |
| Dimensions | 12.8” x 4.8” x 4.6” (325 x 123 x 117 mm) | 11.2” x 3.9” x 4.1” (285 x 100 x 103 mm) |
| Amplifier Power | 32W RMS | 50W RMS |
| Drivers | 63mm woofer + 12.5mm tweeter + passive radiators | 2x active high-frequency drivers + 2x active midrange drivers + 2 passive bass radiators |
| Digital Aux Input | No | No |
| Lights | Yes | - |
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