The Sony SRS-XB31 ranks #120 out of 166 total Medium Size Portable Bluetooth Speakers for sound quality. See all Portable Bluetooth rankings for every top pick.
Brand: Sony
Prices on this page were last checked October 9, 2026 at 8:01 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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#120 Sony SRS-XB31 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5.
Older model: the Sony SRS-XB30 (ranked lower, rated 2.6/5). See every Sony XB and ULT generation.
Pros: In side-by-side tests it played louder than both the JBL Charge 3 and the JBL Charge 4, with deeper bass than the Charge 3. IP67, 24 hours of battery without lights, app EQ, Live Sound mode and an aux input.
Cons: The Charge 4 sounded clearly better balanced, with better mids and highs, and bass turns muddy at high volume or in Extra Bass mode. It uses the same drivers as the Sony SRS-XB30, charges over micro USB and is discontinued.
| App | Yes (Sony Music Center) |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 4.2 |
| Dimensions | 3.4”H x 9.1”W x 3.2”D (87 x 231 x 81 mm) |
| Drivers | 2x 48mm full-range drivers, 2x passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Lights | Yes |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2 lbs (890 g) |
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