Short answer: the Zealot S97 for bass at its price, the Stockwell II for natural sound. The S97’s case is that there is nothing else with that deep bass and a reasonable tuning at $79.98, though it does not get very loud compared to other speakers in this class. The Stockwell II may be the most natural sounding Marshall speaker, but it is not stereo.
Buy the Marshall Stockwell II. It is rated higher for sound quality, and the $150.01 saving on the Zealot S97 is not enough to make up the difference.
There is a real battery-life gap here: the Marshall Stockwell II is rated for 20 hours, the Zealot S97 only 12 hours.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| Marshall Stockwell II | Zealot S97 | |
|---|---|---|
| Price | $229.99 | $79.98 |
| Ranked | #11 of 120 in Large Size Portable Bluetooth Speakers | #66 of 120 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 44Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| IP Rating | IPX4 | IPX6 |
| Bluetooth Latency | 50ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | Yes (PartyAdd up to 100 speakers) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | No |
| Weight | 3.1 lbs (1.4 kg) | 7.3 lbs (3.3 kg) |
| App | No | No |
| Built-in Microphone | Yes | Yes |
| EQ | No | 3 EQ presets |
| Power Bank | No | Yes (USB-A + USB-C) |
| Bluetooth Version | 5.0 | 5.2 |
| Dimensions | 7.1” x 6.3” x 2.8” (180 x 161 x 70 mm) | 12.6” x 7.3” x 5.9” (321 x 185 x 151 mm) |
| Drivers | 3” woofer, 2x 2” fullrange tweeters | 2x 76mm (3”) woofers + 2x 38mm tweeters + 2x passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 20W | 80W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | - |
| MicroSD Playback | - | Yes |
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