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 Boom 4 ranks #103, rated 2.9/5, and costs $149.99, so there is little reason to consider the other one.
The Soundcore 3 is the better-sounding, longer-running option. Identical in acoustic design and performance to the retailer variant Soundcore Select 2. It is rated for 24 hours of battery against 15 for the Ultimate Ears Boom 4. At 0.8 lbs (372 g) it weighs much less than the Ultimate Ears Boom 4 at 1.4 lbs (620 g).
The case for the Ultimate Ears Boom 4: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. Watch for: Not much improvement over the old ones.
Buy the Soundcore 3. It is rated higher for sound quality than the Ultimate Ears Boom 4 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore 3 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $59.99 | $149.99 |
| Ranked | #62 of 157 in Medium Size Portable Bluetooth Speakers | #103 of 157 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 60Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| EQ | Yes | Yes (via app) |
| Bluetooth Latency | 180ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | 85dBC (Manufacturer specified) |
| Party Mode | Yes (PartyCast up to 100 speakers) | - |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 0.8 lbs (372 g) | 1.4 lbs (620 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Dimensions | 6.9” x 2.2” x 2.3” (174 x 57 x 59 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Amplifier Power | 16W | - |
| Drivers | 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) 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 |
| Power Bank | - | No |
Related Speaker Comparisons
How Soundcore 3 compares with other leading options:
- Earfun Uboom L vs Soundcore 3
- Soundcore Motion 300 vs Soundcore 3
- Soundcore Motion+ vs Soundcore 3
- Soundcore Boost “upgraded” 2021 vs Soundcore 3
- Minirig 4 vs Soundcore 3
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 Boom 4: $149.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5).
Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.
Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Full Ultimate Ears Boom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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