Short answer: the Ultimate Ears Wonderboom 2 on price and water protection, though neither ranks well in its class. It is IP67 rated and floats and costs $119 less, though it is not stereo, has barely any bass and recessed treble. The Sony SRS-XB30 doubles as a power bank but sounds muffled, worse than an XB20. Both are rated below 3.0/5 among the 164 medium speakers, so if sound quality matters, consider the Earfun Uboom L instead, ranked #2 at $49.79.
Buy the Ultimate Ears Wonderboom 2. It is rated higher for sound quality; the Sony SRS-XB30 is no longer sold new.
There is a real battery-life gap here: the Sony SRS-XB30 is rated for 24 hours, the Ultimate Ears Wonderboom 2 only 12 hours.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony SRS-XB30 | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $199 Discontinued | $80 |
| Ranked | #127 of 164 in Medium Size Portable Bluetooth Speakers | #108 of 164 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 55Hz | 82Hz |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Party Mode | Yes (Partychain up to 100 speakers) | No |
| Weight | 2.2 lbs (1000 g) | 0.9 lbs (420 g) |
| IP Rating | IPX5 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.1 |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Dimensions | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| TWS | Yes | Yes |
| App | Yes (Sony Music Center) | No |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Power Input | Micro USB | Micro USB |
| Amplifier Power | 20W | - |
| Drivers | 2x 48mm full-range drivers + 2x passive radiators | 2x 40mm active drivers + 2x passive radiators |
| Maximum SPL | 95dB (Manufacturer specified) | 88dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| EQ | - | No |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
More worthwhile head-to-heads for Ultimate Ears Wonderboom 2:
- Earfun Uboom L vs Ultimate Ears Wonderboom 2
- Soundcore Motion 300 vs Ultimate Ears Wonderboom 2
- Soundcore Motion+ vs Ultimate Ears Wonderboom 2
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Wonderboom 2
- Minirig 4 vs Ultimate Ears Wonderboom 2
Prices on this page were last checked October 4, 2026 at 9:58 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 SRS-XB30: $199 Discontinued eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5.
Pros: A compact 1kg portable with IPX5 splash protection, aux input, LDAC/AAC support, Sony’s app, speakerphone capability, power-bank output, stereo pairing and Party Chain linking. It reaches a useful 95dB maximum level and has a claimed 24-hour battery life at moderate volume, making it a convenient older outdoor option. Measured bass extension of 55Hz (-10dB).
Cons: Independent lab listening rates music fidelity only fair: bass has impact but is boomy and lacks the deepest notes, while the midrange can sound hazy, muffled and grainy. Its micro-USB charging and older Bluetooth 4.2 platform now feel dated, so it is best considered for features and used-market value rather than sound quality. Discontinued.
Full Sony SRS-XB30 review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes (Sony Music Center) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9” x 3.2” x 3.4” (228 x 82 x 86 mm) |
| Drivers | 2x 48mm full-range drivers + 2x passive radiators |
| IP Rating | IPX5 |
| Maximum SPL | 95dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.2 lbs (1000 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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Ultimate Ears Wonderboom 2: $80 Amazon eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated and floats. Compact and light enough to toss in a bag. Measured bass extension of 82Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. Slightly boosted 93Hz upper bass Dip at 9kHz. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2019. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 2 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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