Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Xiaomi Sound Party ranks #20 of 179 medium speakers by sound quality at $135.84; the Marshall Middleton II ranks #31 of 120 large speakers by sound quality at $279.99.
The Xiaomi Sound Party is the lighter choice. A versatile outdoor speaker with warm, balanced sound, fully waterproof build, long battery life, a phone charging port and a handy retractable handle. At 2.6 lbs (1.2 kg) it weighs noticeably less than the Marshall Middleton II at 4 lbs (1.8 kg). The tradeoff: The sound evidence is mixed rather than universally glowing.
The Marshall Middleton II is the deeper-bass pick. A waterproof stereo speaker with very deep bass for its size, a long battery, a power bank and an app EQ. Its bass reaches about 38Hz before falling 10dB, against 54Hz for the Xiaomi Sound Party. It keeps a wired aux input, which the Xiaomi Sound Party lacks. It plays in stereo from a single unit, unlike the Xiaomi Sound Party. The tradeoff: Bass boosted which drowns out the midrange.
Buy the Xiaomi Sound Party at $135.84 if you want a medium speaker. Buy the Marshall Middleton II at $279.99 if you want a large speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Xiaomi Sound Party | Marshall Middleton II | |
|---|---|---|
| Price | $135.84 | $279.99 |
| Ranked | #20 of 179 in Medium Size Portable Bluetooth Speakers | #31 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 54Hz | 38Hz |
| Battery Life | 26 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes (5 band) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Party Connect, up to 100 speakers) | Yes (Marshall Stack) |
| Power Bank | Yes (USB-C, 5V/3A) | Yes (USB-C) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Digital Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 10” x 3.6” x 3.6” (255 x 92 x 92 mm) | 9.1” x 3.9” x 4.3” (230 x 98 x 110 mm) |
| Drivers | 2x 40mm woofers (35W total) + 2x 15mm tweeters | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | 102dB (measured by Alan Ross Reviews) | - |
| Weight | 2.6 lbs (1200 g) | 4 lbs (1.8 kg) |
| Amplifier Power | 50W | 80W |
| Power Input | USB-C (5V/3A, 9V/2A, 12V/2A) | USB-C |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (detachable strap) |
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