Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Soundcore Boom 2 ranks #10 of 82 large speakers by sound quality at $89.98; the Ultimate Ears Boom 4 ranks #93 of 144 medium speakers by sound quality at $119.99.
Why pick the Soundcore Boom 2: Pretty deep bass for the size. Watch for: Only a single midrange driver, so you only get stereo for the tweeters.
What the Ultimate Ears Boom 4 does well: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. The tradeoff: Not much improvement over the old ones.
Buy the Soundcore Boom 2 at $89.98 if you want a large speaker. Buy the Ultimate Ears Boom 4 at $119.99 if you want a medium speaker instead.
If battery life is a priority, the Soundcore Boom 2 is rated for 24 hours versus 15 hours for the Ultimate Ears Boom 4.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Soundcore Boom 2 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $89.98 | $119.99 |
| Ranked | #10 of 82 in Large Size Portable Bluetooth Speakers | #93 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 47Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | No | No |
| EQ | Yes | Yes (via app) |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 125ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 85dBC (Manufacturer specified) |
| MicroSD Playback | No | - |
| Party Mode | Yes (PartyCast 2.0 up to 100 speakers) | - |
| Power Bank | Yes (USB-A) | No |
| Power Input | USB-C | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 3.7 lbs (1.68 kg) | 1.4 lbs (620 g) |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 11.7” x 7.3” x 4” (297 x 185 x 102 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 120mm x 90mm woofer, 2x 20mm tweeters | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 80W | - |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | Yes (built-in loop) |
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Prices on this page were last checked September 26, 2026 at 11:14 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 Boom 2: $89.98 Amazon B&H Photo Video eBay
Older model: the Soundcore Motion Boom (rated 4.5/5).
Pros: Pretty deep bass for the size. Cool lights in the side passive radiators. For the best sound quality use Oluv’s EQ or Alan Ross’s EQ. With the stock tuning, this speaker would rank around #24, due to the boosted bass and rising treble. Measured bass extension of 47Hz (-10dB).
Cons: Only a single midrange driver, so you only get stereo for the tweeters. Sound processing issues with inconsistent bass notes that disappear at low levels like the Soundcore Boom and Soundcore Boost, not great for listening at low levels. Quite bass heavy with BassUp turned on, which is best left off. A little bit of a bright tuning in the treble, about +5db.
Full Soundcore Boom 2 review and specifications →
| Amplifier Power | 80W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 125ms |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 11.7” x 7.3” x 4” (297 x 185 x 102 mm) |
| Drivers | 120mm x 90mm woofer, 2x 20mm tweeters |
| EQ | Yes |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Lights | Yes |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) |
| MicroSD Playback | No |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast 2.0 up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes |
| Weight | 3.7 lbs (1.68 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 3D Audio Show: Tribit StormBox Lava vs SoundCore Boom 2 - sound quality demo More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs SoundCore Boom 2 - David vs Goliath
- Mateusz Cholewa: TRIBIT StormBox LAVA vs Soundcore BOOM 2 More from Mateusz Cholewa →
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - indoor soundtest
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - outdoor soundtest
- Joy & Oluv’Sone: Best portable speakers 2025 - get the best bang for your buck $$$
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Alan Ross Reviews: Ultimate Soundcore Boom 2 Review - Is It Worth The Hype? More from alanrossreviews →
- Oluv Patreon: Anker Soundcore Boom 2 - first impressions
- Jay’s Straight Up Reviews & More: Soundcore Boom 2 💣vs Mifa Wildbox 🪇 Basement Battle of the Bluetooth Boombox Welterweights ⚖️ More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: New Release! Soundcore Boom 2 😯 Bluetooth Boombox Speaker 🔊 Unboxing, First Look & Sound Demo
- CEONTHEMAKING: Soundcore Boom 2 - HANDS DOWN The Best Speaker Under $150! More from CEONTHEMAKING →
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- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test
- Head-to-Head Comparisons
- Soundcore Boom 2 vs Mifa Wildbox
- Soundcore Boom 2 vs Marshall Stockwell II
- Soundcore Boom 2 vs B&O Beosound A5
- Soundcore Boom 2 vs Vifa Oslo
- Soundcore Boom 2 vs Harman Kardon Citation 200
- Soundcore Boom 2 vs Soundcore Motion Boom
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Ultimate Ears Boom 4: $119.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (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 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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