Short answer: both are discontinued, so this only matters if you are buying used, though neither ranks well in its class. Used, the Sony SRS-XB12 is the better pick: it ranks #53 of 63 small speakers by sound quality (rated 2.5/5), against #60 (rated 2.3/5) for the Lenovo 700 Ultraportable Bluetooth Speaker. If you want one new, the Sony SRS-XB100 replaces the Sony SRS-XB12 and is rated 2.9/5 at $63. Both are rated below 3.0/5 among the 63 small speakers, so if sound quality matters, consider the Tribit Stormbox Micro 2 instead, ranked #1 at $35.39.
The Sony SRS-XB12 is the deeper-bass, longer-running option. A small waterproof speaker with a detachable strap, long battery life, and USB-C charging, easy to take to the beach or pool. Its bass reaches about 97Hz before falling 10dB, against 220Hz for the Lenovo 700 Ultraportable Bluetooth Speaker. It is rated for 16 hours of battery against 12 for the Lenovo 700 Ultraportable Bluetooth Speaker. It is rated IP67 against IPX2 for the Lenovo 700 Ultraportable Bluetooth Speaker. The catch: Muddy, with little bass and peaky treble.
The Lenovo 700 Ultraportable Bluetooth Speaker is the lighter option. A very thin aluminum speaker about the size of a phone, with touch controls and voice assistant support. At 0.3 lbs (145 g) it weighs much less than the Sony SRS-XB12 at 0.5 lbs (243 g). It plays in stereo from a single unit, unlike the Sony SRS-XB12. The tradeoff: Huge lack of bass, probably better off with your phone audio.
Buy the Sony SRS-XB12 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 SRS-XB100, which replaces the Sony SRS-XB12.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Sony SRS-XB12 | Lenovo 700 Ultraportable Bluetooth Speaker | |
|---|---|---|
| Price | $79 Discontinued | $85 Discontinued |
| Ranked | #53 of 63 in Small Size Portable Bluetooth Speakers | #60 of 63 in Small Size Portable Bluetooth Speakers |
| App | No | No |
| Bass Extension (-10dB) | 97Hz | ~220Hz |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | No | No |
| IP Rating | IP67 | IPX2 |
| Bluetooth Latency | 240ms | - |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | No | No |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | Pointing up |
| TWS | No | Yes |
| Weight | 0.5 lbs (243 g) | 0.3 lbs (145 g) |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Power Input | USB-C | USB-C |
| Bluetooth Version | 4.2 | 5.0 |
| Drivers | 46mm | 1.5” (38mm) full-range driver |
| Charging Time | 4.5 hours | - |
| Amplifier Power | 7W | 4W |
| Dimensions | 2.9” x 3.6”H (74 x 92 mm) (diameter) | 6.5” x 3” x 0.4” (165 x 75 x 11 mm) |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | - |
| NFC | - | Yes |
| Frequency Response | - | 220Hz - 20kHz (Manufacturer specified) |
Where the Ratings Come From
- Sony SRS-XB12: reviews by Alan Ross and DLX Willington.
- Lenovo 700 Ultraportable Bluetooth Speaker: reviews by Jon Low and thomas vanderkin.
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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