Short answer: the Ultimate Ears Wonderboom on price, the Sony SRS-XE300 for stereo when flat, though neither ranks well in its class. The XE300 is IP67 rated and its orientation-aware playback switches to stereo when laid flat, but it sounds muffled and does not have very deep bass. The Wonderboom is IP67 rated and floats and costs $79 against $97.71, though it is not stereo and has barely any bass and recessed treble. Both are rated below 3.0/5 among the 151 medium speakers, so if sound quality matters, consider the Earfun Uboom L instead, ranked #1 at $49.79.
Buy the Ultimate Ears Wonderboom 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, start with the Earfun Uboom L instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Wonderboom | Sony SRS-XE300 | |
|---|---|---|
| Price | $79 Discontinued | $97.71 Discontinued |
| Ranked | #99 of 151 in Medium Size Portable Bluetooth Speakers | #104 of 151 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 10 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Power Input | Micro USB | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (425 g) | 2.9 lbs (1.3 kg) |
| IP Rating | IPX7 | IP67 |
| Drivers | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators | 2x 49x71mm X-Balanced speaker units + 2x passive radiators |
| TWS | Yes | Yes |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| App | No | Yes (Sony Music Center) |
| EQ | No | Yes (via app) |
| Built-in Microphone | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, AAC, LDAC |
| Aux Input | No | No |
| Dimensions | 4” x 3.7” (102 x 93.5 mm) | 9.4” x 4.1” x 4.7” (238 x 105 x 119 mm) |
| Strap | Yes (built-in loop) | - |
| Bluetooth Version | - | 5.2 |
| Power Bank | - | No |
| Amplifier Power | - | 16W |
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Prices on this page were last checked October 2, 2026 at 10:18 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
Ultimate Ears Wonderboom: $79 Discontinued eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated and floats. Compact, light, and simple to use.
Cons: Not stereo, barely any bass, recessed treble. Dip at 9kHz. Low mid bass distortion. Not technically a 360 speaker, only front and rear. Discontinued.
Full Ultimate Ears Wonderboom review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4” x 3.7” (102 x 93.5 mm) |
| Drivers | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (425 g) |
- 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.
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom vs Ultimate Ears Wonderboom 2
- Ultimate Ears Wonderboom vs Ultimate Ears Boom 4
- Ultimate Ears Wonderboom vs Ultimate Ears Wonderboom 3
- Ultimate Ears Wonderboom vs Ultimate Ears Boom 3
- Ultimate Ears Wonderboom vs Klipsch Groove/Heritage Groove
- Ultimate Ears Wonderboom vs Ultimate Ears Wonderboom 4
- Ultimate Ears Wonderboom vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom vs LG Xboom Grab
- See all 74 comparisons
Sony SRS-XE300: $97.71 Discontinued Amazon eBay
Newer model: the Sony ULT Field 3, ranked higher, rated 3.4/5.
Pros: IP67 rated. Orientation-aware playback switches to stereo when laid flat. Party Connect links up to 100 speakers; fast charging (10 min charge = ~70 min playback).
Cons: Muffled sounding, not very deep bass. Hollow sounding. Worse than a XB43. Discontinued.
Full Sony SRS-XE300 review and specifications →
| Amplifier Power | 16W |
|---|---|
| App | Yes (Sony Music Center) |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.4” x 4.1” x 4.7” (238 x 105 x 119 mm) |
| Drivers | 2x 49x71mm X-Balanced speaker units + 2x passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.9 lbs (1.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- New Stuff TV: Sony SRS-XE300 vs JBL Charge 5 More from NewStuffTV1 →
- DLX Willington: FINALLY! Sony SRS XG300, SRS XE300, & SRS XE200 Are Here. Binaural Sound Samples & First Impressions More from DLXWillington →
- GYMCADDY: Sony XE300 Review And Compared to Sony XB33 - A Muffled Mess More from GYMCADDY →
- GYMCADDY: JBL Charge 5 Vs Sony XE300 - How Can You Mess Up This Bad?
- Head-to-Head Comparisons
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- Sony SRS-XE300 vs Klipsch Groove/Heritage Groove
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- Sony SRS-XE300 vs Ultimate Ears Boom 3
- Sony SRS-XE300 vs Ultimate Ears Boom 4
- Sony SRS-XE300 vs Ultimate Ears Wonderboom 2
- See all 73 comparisons