Short answer: the Soundcore 3. It ranks #62 of 157 medium speakers by sound quality, rated 3.4/5, at $59.99; the Ultimate Ears Megaboom 4 ranks #152, rated 2.1/5, and costs $200, so there is not much of a tradeoff to weigh.
The Soundcore 3 is the better-sounding, lighter pick. Identical in acoustic design and performance to the retailer variant Soundcore Select 2. At 0.8 lbs (372 g) it weighs much less than the Ultimate Ears Megaboom 4 at 2.4 lbs (1.1 kg). It plays in stereo from a single unit, unlike the Ultimate Ears Megaboom 4.
Why pick the Ultimate Ears Megaboom 4: IP67 rated, floats, and finally uses USB-C charging. The catch: A lot of distortion at higher volumes.
Buy the Soundcore 3. It is rated higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore 3 | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $59.99 | $200 |
| Ranked | #62 of 157 in Medium Size Portable Bluetooth Speakers | #152 of 157 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 60Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| EQ | Yes | Yes (via app) |
| Bluetooth Latency | 180ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | 91dB (Manufacturer specified) |
| Party Mode | Yes (PartyCast up to 100 speakers) | Yes (PartyUp up to 50 speakers) |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Weight | 0.8 lbs (372 g) | 2.4 lbs (1.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Dimensions | 6.9” x 2.2” x 2.3” (174 x 57 x 59 mm) | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Amplifier Power | 16W | - |
| Drivers | 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Power Input | USB-C | USB-C |
| Aux Input | No | No |
| TWS | Yes | Yes |
| Strap | No | Yes (built-in loop) |
| Built-in Microphone | - | No |
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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
Soundcore 3: $59.99 Amazon eBay
Older model: the Soundcore 2 (ranked lower, rated 3/5).
Pros: Soundcore 3 uses 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators. Its 372 g, claimed 24 hours (Manufacturer specified) battery life, IPX7 protection, up to 99dB and stereo playback make it a practical option for its intended room or portable use. Identical in acoustic design and performance to the retailer variant Soundcore Select 2. Measured bass extension of 60Hz (-10dB).
Cons: Bass is limited by its 60Hz specification.
Full Soundcore 3 review and specifications →
| Amplifier Power | 16W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 60Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Latency | 180ms |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.2” x 2.3” (174 x 57 x 59 mm) |
| Drivers | 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IPX7 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 0.8 lbs (372 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Megaboom 4: $200 Amazon eBay
Older model: the Ultimate Ears Megaboom 3 (ranked higher, rated 3/5).
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 |
|---|---|
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| 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 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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