Short answer: the Soundcore Motion X500. It ranks #24 of 77 large speakers by sound quality at $99.99; the Ultimate Ears Epicboom ranks #57 and costs $213.41, so there is little reason to consider the other one.
What the Soundcore Motion X500 offers: 40W stereo with 3-driver layout (two tweeters + woofer). IPX7 weatherproof rating. Compact and very portable. Fine build quality at this price. Spatial Dynamic mode provides immersive sound. Gets close to 12 hour battery claim. Watch for: A little bright on top, a custom EQ can flatten things out a bit. Peaks at 250hz and dip at 1khz
What the Ultimate Ears Epicboom offers: 17 hour battery with USB-C charging (first UE portable with USB-C). IP67 rating, floats in water. Made mostly from recycled fabric and plastic. Large best-sounding UE portable that still feels portable. 180ft Bluetooth range. Watch for: Not very deep bass for the size. Gets distorted at around 70-80% with bass thuds.
Buy the Soundcore Motion X500. It ranks higher for sound quality than the Ultimate Ears Epicboom and costs less, so the other one has nothing left to offer.
Specifications Side By Side
| Soundcore Motion X500 | Ultimate Ears Epicboom | |
|---|---|---|
| Price | $99.99 | $213.41 |
| Ranked | #24 of 77 in Large Size Portable Bluetooth Speakers | #57 of 77 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 48Hz | ~55Hz |
| Battery Life | 12 hours (Manufacturer specified) | 17 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IPX7 | IPX7 |
| Max Volume | 104dB | 94dB |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 4.6 lbs / 2.1 kg | 4.3 lbs / 1.97 kg |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| Power Bank | No | No |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 8.7" x 8" x 3.2" (220 x 202 x 81 mm) | 4.7" x 9.5" x 6.4" (119 x 241 x 162 mm) |
| Drivers | 2x 58mm (2.3") forward-firing full-range drivers + 1x 43mm (1.7") upward-firing driver | 1x 120mm woofer, 2x 45mm tweeters |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Output Power | 40W | 10W RMS |
| Digital Aux Input | No | No |
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Prices on this page were last checked August 27, 2026 at 10:09 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 X500: $99.99 Amazon eBay
Pros: 40W stereo with 3-driver layout (two tweeters + woofer). IPX7 weatherproof rating. Compact and very portable. Fine build quality at this price. Spatial Dynamic mode provides immersive sound. Gets close to 12 hour battery claim.
Cons: A little bright on top, a custom EQ can flatten things out a bit. Peaks at 250hz and dip at 1khz
Full Soundcore Motion X500 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.7" x 8" x 3.2" (220 x 202 x 81 mm) |
| Drivers | 2x 58mm (2.3") forward-firing full-range drivers + 1x 43mm (1.7") upward-firing driver |
| EQ | Yes |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 104dB |
| Omnidirectional | No |
| Output Power | 40W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.6 lbs / 2.1 kg |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Epicboom: $213.41 Amazon eBay
Pros: 17 hour battery with USB-C charging (first UE portable with USB-C). IP67 rating, floats in water. Made mostly from recycled fabric and plastic. Large best-sounding UE portable that still feels portable. 180ft Bluetooth range.
Cons: Not very deep bass for the size. Gets distorted at around 70-80% with bass thuds.
Full Ultimate Ears Epicboom review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 17 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.7" x 9.5" x 6.4" (119 x 241 x 162 mm) |
| Drivers | 1x 120mm woofer, 2x 45mm tweeters |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 94dB |
| Omnidirectional | No |
| Output Power | 10W RMS |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.3 lbs / 1.97 kg |
- Links
- Reviews, Comparisons and Sound Samples
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