Short answer: both are discontinued, so this only matters if you are buying used. Used, the Sony SRS-XG300 is the better pick: it ranks #67 of 93 large speakers by sound quality (rated 3.1/5), against #77 (rated 2.8/5) for the Ultimate Ears Megablast. If you want one new, the Tribit Stormbox Lava ranks #3 at $100.
Buy the Sony SRS-XG300 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 Tribit Stormbox Lava instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony SRS-XG300 | Ultimate Ears Megablast | |
|---|---|---|
| Price | $219.00 Discontinued | $240 Discontinued |
| Ranked | #67 of 93 in Large Size Portable Bluetooth Speakers | #77 of 93 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 54Hz | 64Hz |
| Battery Life | 25 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-A, 5V/1.5A) | No |
| Weight | 6.6 lbs (3 kg) | 2.4 lbs (1.1 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.2 | 4.2 |
| Drivers | 2x X-Balanced woofers, 2x 20mm tweeters | 2x 55mm fullrange, 2x 25mm tweeters |
| Dimensions | 12.5” x 5.4” x 5.4” (318 x 138 x 136 mm) | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Amplifier Power | 16W RMS | - |
| Digital Aux Input | No | No |
| Strap | No | - |
| Wi-Fi | - | Yes |
| Voice Assistants | - | Amazon Alexa |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
How Sony SRS-XG300 compares with other leading options:
- JBL Xtreme 5 vs Sony SRS-XG300
- Tribit Stormbox Lava vs Sony SRS-XG300
- Soundcore Boom 2 vs Sony SRS-XG300
- Marshall Stockwell II vs Sony SRS-XG300
- Harman Kardon Citation 200 vs Sony SRS-XG300
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
Sony SRS-XG300: $219.00 Discontinued Amazon eBay
Newer model: the Sony ULT Field 5, ranked higher, rated 3.5/5.
Pros: IP67 dust/waterproof rating. Bluetooth 5.2 with multipoint pairing, LDAC codec support. Retractable carry handle for easy portability. Big boomy bass-forward sound, excellent for parties. Fast-charging: 10 minutes gives 70 minutes playback. Stamina mode optimizes battery. Measured bass extension of 54Hz (-10dB).
Cons: Overly expensive. Bass not as deep as competitors. Upper mids peak. Hollow sounding. Rolled off treble. Not much clarity. Does not float. Speaker will not remain at max volume and will turn itself down automatically. Discontinued.
Full Sony SRS-XG300 review and specifications →
| Amplifier Power | 16W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.5” x 5.4” x 5.4” (318 x 138 x 136 mm) |
| Drivers | 2x X-Balanced woofers, 2x 20mm tweeters |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 6.6 lbs (3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: Who Sounds The Best Of Sony XG300, XB43 & JBL XTREME3 With Sound Sample BLIND CHALLENGE Reveal. More from DLXWillington →
- Techder Audios: SONY XG300 VS SOUNDCORE MOTION BOOM More from techderaudios →
- GYMCADDY: JBL Xtreme 3 Vs Sony XG300 - Its Not Even Close More from GYMCADDY →
- GYMCADDY: Sony XG300 Review & Compared To Sony XB43
- New Stuff TV: Sony SRS-XG300 Vs JBL Xtreme 3 More from NewStuffTV1 →
- Head-to-Head Comparisons
- Sony SRS-XG300 vs Klipsch Detroit
- Sony SRS-XG300 vs Doss Soundbox XL
- Sony SRS-XG300 vs JBL Xtreme
- Sony SRS-XG300 vs Ultimate Ears Epicboom
- Sony SRS-XG300 vs Dali Katch G2
- Sony SRS-XG300 vs B&O Beosound Level
- Sony SRS-XG300 vs Harman Kardon Onyx Studio 4
- Sony SRS-XG300 vs LG PN7
- See all 39 comparisons
Ultimate Ears Megablast: $240 Discontinued eBay
Pros: Alexa integration (Wi-Fi + Bluetooth). 93dB loudest in UE lineup, 40% louder than Megaboom. IP67 waterproof and drop-proof. 16 hour battery. Party mode connects up to 8 speakers. Can use while charging to keep Alexa on 24/7. Measured bass extension of 64Hz (-10dB).
Cons: Bass is not very deep compared to the competition. Discontinued.
Full Ultimate Ears Megablast review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 64Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Drivers | 2x 55mm fullrange, 2x 25mm tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 2.4 lbs (1.1 kg) |
| Wi-Fi | Yes |
- 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 Megablast vs B&O Beosound Level
- Ultimate Ears Megablast vs LG PN7
- Ultimate Ears Megablast vs Soundcore Rave Neo
- Ultimate Ears Megablast vs Dali Katch G2
- Ultimate Ears Megablast vs Ultimate Ears Epicboom
- Ultimate Ears Megablast vs W-King D9
- Ultimate Ears Megablast vs Orange Box
- Ultimate Ears Megablast vs LG Xboom XG7
- See all 40 comparisons