Short answer: the Soundcore Motion 100. It ranks #39 of 135 medium speakers by sound quality at $47; the Ultimate Ears Megaboom 4 ranks #131 and costs $200, so there is not much of a tradeoff to weigh.
The Ultimate Ears Megaboom 4 brings: It’s IP67 rated, floats, finally charges over USB-C, gets 20 hours of battery, and its PartyUp feature can sync it with other UE speakers. The tradeoff: it distorts a lot at higher volumes, rolls off the treble, and isn’t very loud, a real step back for the line.
What sells the Soundcore Motion 100: Applying Oluv’s EQ gets it to its flattest response. What doesn’t: its bass isn’t very deep, there’s slight distortion, real-world battery falls well short of the claimed 12 hours at higher volumes (closer to 4), charging takes about 5 hours, and there’s no charge-out for other devices.
Buy the Soundcore Motion 100. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, so there is no real case for the other one.
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 Ultimate Ears Megaboom 4 is rated for 20 hours versus 12 hours for the Soundcore Motion 100.
Specifications Side By Side
| Ultimate Ears Megaboom 4 | Soundcore Motion 100 | |
|---|---|---|
| Price | $200 | $47 |
| Ranked | #131 of 135 in Medium Size Portable Bluetooth Speakers | #39 of 135 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Stereo | No | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) | 7.5" x 3.1" x 2.4" (190 x 80 x 60 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators | 2x full-range drivers + 2x passive radiators |
| TWS | Yes | Yes |
| EQ | Yes (via app) | Yes |
| Power Input | USB-C | USB-C |
| Built in Microphone | No | No |
| Weight | 2.4 lbs / 1.1 kg | 1.3 lbs / 575 g |
| Max Volume | 91dB | - |
| Digital Aux Input | No | No |
| Aux Input | - | No |
| Bass Extension (-10dB) | - | 65Hz |
| Power Bank | - | No |
| Bluetooth Codecs | - | AAC, LDAC, SBC |
| Frequency Response | - | 50Hz - 40kHz (Manufacturer specified) |
| Output Power | - | 20W |
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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Soundcore Motion 100: $47 Amazon
Pros: Use Oluv’s EQ for the flattest response
Cons: Not very deep bass, slight distortion. Real-world battery falls well short of the 12-hour claim at higher volumes (closer to 4 hours at max). Charging takes about 5 hours; no charge-out for other devices.
Full Soundcore Motion 100 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, LDAC, SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.5" x 3.1" x 2.4" (190 x 80 x 60 mm) |
| Drivers | 2x full-range drivers + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Output Power | 20W |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 575 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons