Short answer: the Ultimate Ears Boom 4, if you are buying new. The Soundcore Motion 100 ranks higher than it (#45 vs #113 of 175 medium speakers, 3.7/5 vs 2.9/5) but is discontinued, so only consider it used; the Ultimate Ears Boom 4 is still sold new at $129.99.
The Soundcore Motion 100 is the better-sounding option. It supports LDAC Bluetooth, which the Ultimate Ears Boom 4 lacks. Watch for: Not very deep bass, slight distortion.
Why pick the Ultimate Ears Boom 4: 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 Ultimate Ears Boom 4, since the Soundcore Motion 100 is discontinued and only worth hunting down used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Motion 100 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $47 Discontinued | $129.99 |
| Ranked | #45 of 175 in Medium Size Portable Bluetooth Speakers | #113 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 65Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| EQ | Yes | Yes (via app) |
| IP Rating | IPX7 | IP67 |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, LDAC, SBC | SBC |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 7.5” x 3.1” x 2.4” (190 x 80 x 60 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 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 |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) | - |
| Weight | 1.3 lbs (575 g) | 1.4 lbs (620 g) |
| Amplifier Power | 20W | - |
| Built-in Microphone | No | No |
| Digital Aux Input | No | No |
| Maximum SPL | - | 85dBC (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
More worthwhile head-to-heads for Soundcore Motion 100:
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- Soundcore Boost “upgraded” 2021 vs Soundcore Motion 100
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Prices on this page were last checked October 12, 2026 at 4:13 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 Motion 100: $47 Discontinued eBay
Same family: the Soundcore Motion 300 (larger model, ranked higher, rated 4.5/5), the Soundcore Motion X500 (larger model, rated 4.1/5) and the Soundcore Motion X600 (larger model, rated 4.3/5). See every Soundcore Motion generation.
Pros: Use Oluv’s EQ for the flattest response. Measured bass extension of 65Hz (-10dB).
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. Discontinued and no longer sold new.
Full Soundcore Motion 100 review and specifications →
| Released | Nov 2023 (2 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs (575 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Motion 100 vs Tribit Stormbox Pro
- Soundcore Motion 100 vs Xiaomi Sound Outdoor
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- See all 80 comparisons
Ultimate Ears Boom 4: $129.99 Amazon $129.99 eBay
Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).
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 →
| Released | Jun 2024 (2 years ago) |
|---|---|
| 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
- Ultimate Ears Boom 4 vs Ultimate Ears Boom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Klipsch Groove
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs DBSONO X-Blast F37
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- See all 139 comparisons