Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Ultimate Ears Megaboom 4 ranks #131 of 135 medium speakers by sound quality at $200; the Sony ULT Field 7 ranks #40 of 73 boombox speakers by sound quality at $400.
The case for the Ultimate Ears Megaboom 4: IP67 rated, floats, finally switched to USB-C charging, a 20-hour battery, and the PartyUp feature syncs multiple UE speakers together - all in a fraction of the size and price of the ULT Field 7. The catch: a lot of distortion at higher volumes, rolled-off treble, and it just isn’t very loud - UE’s own follow-up to a well-liked line that, by our notes, went backwards.
What the Sony ULT Field 7 gets right: it sounds better than Sony’s own XG500. Set against that: still not as deep in the bass as the top-ranked speakers, plus a peak around 8kHz.
Buy the Ultimate Ears Megaboom 4 at $200 if you want a medium speaker. Buy the Sony ULT Field 7 at $400 if you want a boombox speaker instead.
If sound quality matters at all to you, skip the Ultimate Ears Megaboom 4. It ranks near the bottom of the 135 medium speakers, so look higher up the list instead.
If battery life is a priority, the Sony ULT Field 7 is rated for 30 hours versus 20 hours for the Ultimate Ears Megaboom 4.
Specifications Side By Side
| Ultimate Ears Megaboom 4 | Sony ULT Field 7 | |
|---|---|---|
| Price | $200 | $400 |
| Ranked | #131 of 135 in Medium Size Portable Bluetooth Speakers | #40 of 73 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (PartyUp up to 50 speakers) | Yes (Party Connect up to 100 speakers) |
| Stereo | No | Yes |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| TWS | Yes | Yes |
| EQ | Yes (via app) | Yes (App + ULT button) |
| Power Input | USB-C | AC Power cord |
| Built in Microphone | No | Yes |
| Weight | 2.4 lbs / 1.1 kg | 13.9 lbs / 6.3 kg |
| Max Volume | 91dB | - |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| Bass Extension (-10dB) | - | ~52Hz |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Power Bank | - | Yes (USB-A, 5V/1.5A) |
| USB Playback | - | Yes |
| Bluetooth Codecs | - | SBC, AAC, LDAC |
| Output Power | - | 100W |
The Two Speakers In Full
Ultimate Ears Megaboom 4: $200 Amazon
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| App | Yes |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Version | 5.1 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Max Volume | 91dB |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.4 lbs / 1.1 kg |
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Sony ULT Field 7: $400 Amazon
Pros: Better sounding than the XG500
Cons: Still not as deep bass as the top ranked speakers. 8khz peak
Full Sony ULT Field 7 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Output Power | 100W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs / 6.3 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons