Short answer: the Sony XB23. It ranks #64 of 136 medium speakers by sound quality at $100; the Ultimate Ears Boom 3 ranks #89 and costs $129.90, which makes this an easy call rather than a real tradeoff.
What the Sony XB23 offers: Reasonably neutral. IP67 rated with a strap hook for backpacks. USB-C charging; up to 12 hour battery life. Watch for: Bass drops off a ton at high levels. Reduces its own volume over time when turned to max
What the Ultimate Ears Boom 3 offers: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp Watch for: Not stereo, barely any bass, recessed treble. 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 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.
Buy the Sony XB23. It ranks higher for sound quality than the Ultimate Ears Boom 3 and costs less, so there is no real case for the other one.
There is a real gap in water resistance: the Ultimate Ears Boom 3 at IP67 (brief submersion) against the Sony XB23, which has IPX4 (splashing).
Specifications Side By Side
| Sony XB23 | Ultimate Ears Boom 3 | |
|---|---|---|
| Price | $100 | $129.90 |
| Ranked | #64 of 136 in Medium Size Portable Bluetooth Speakers | #89 of 136 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 67Hz | 91Hz |
| Battery Life | 12 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Max Volume | 95dB | 87dB |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (PartyUp up to 50 speakers) |
| Weight | 1.3 lbs / 580 g | 1.3 lbs / 608 g |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 3" x 8.6" x 3" (76 x 218 x 76 mm) | 7.2" x 2.9" (184 x 73 mm) |
| Output Power | 8W RMS | - |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Built in Microphone | Yes | No |
| EQ | Yes (3-band: bass, mid, treble) | Yes (via app) |
| App | Yes (Sony Music Center) | - |
| Drivers | 2x 42x51mm X-Balanced racetrack drivers + 2x passive radiators | 2x 2" active drivers + 2x 2" x 4" passive radiators |
| IP Rating | IPX4 | IP67 |
| Digital Aux Input | No | No |
| Omnidirectional | No | Yes |
| Power Input | - | Micro USB |
| Stereo | - | Yes |
| TWS | - | Yes |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- Bose Soundlink Mini vs Ultimate Ears Boom 4
- Klipsch Nashville vs Sony SRS-XE300
- JBL Flip 4 vs Marshall Emberton II
- Ultimate Ears Boom 3 vs Ultimate Ears Roll 2
- Ultimate Ears Boom 3 vs Soundcore Motion X500
Prices on this page were last checked August 27, 2026 at 10:09 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Sony XB23: $100 eBay
Pros: Reasonably neutral. IP67 rated with a strap hook for backpacks. USB-C charging; up to 12 hour battery life.
Cons: Bass drops off a ton at high levels. Reduces its own volume over time when turned to max
Full Sony XB23 review and specifications →
| App | Yes (Sony Music Center) |
|---|---|
| Bass Extension (-10dB) | 67Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3" x 8.6" x 3" (76 x 218 x 76 mm) |
| Drivers | 2x 42x51mm X-Balanced racetrack drivers + 2x passive radiators |
| EQ | Yes (3-band: bass, mid, treble) |
| IP Rating | IPX4 |
| Max Volume | 95dB |
| Omnidirectional | No |
| Output Power | 8W RMS |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Weight | 1.3 lbs / 580 g |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Sony XB23 vs JBL Flip 5 v Tribit Maxsound Plus More from alanrossreviews →
- Alan Ross Reviews: Huawei Sound Joy vs Sony xb23 - worse or worser? 🤭
- Alan Ross Reviews: Sony XB23 vs XB33 - specs and measurements
- GYMCADDY: Sony XE200 Review And Compared to Sony XB23 - It Got The XE300 Treatment More from GYMCADDY →
- Reddit Search for Sony XB23 Review
- Head-to-Head Comparisons
Ultimate Ears Boom 3: $129.90 Amazon eBay
Pros: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp
Cons: Not stereo, barely any bass, recessed treble. 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 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Boom 3 review and specifications →
| Bass Extension (-10dB) | 91Hz |
|---|---|
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Version | 4.2 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2" x 2.9" (184 x 73 mm) |
| Drivers | 2x 2" active drivers + 2x 2" x 4" passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Max Volume | 87dB |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 608 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Boom 3 vs Ultimate Ears Boom 4
- Ultimate Ears Boom 3 vs Klipsch Groove/Heritage Groove
- Ultimate Ears Boom 3 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 3 vs Sony SRS-XE300
- Ultimate Ears Boom 3 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 3 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 3 vs Tribit Stormbox
- Ultimate Ears Boom 3 vs Sony SRS-XB20
- See all 77 comparisons