Short answer: the Onn Portable FM Boombox. It ranks #26 of 115 large speakers by sound quality, rated 4.2/5, at $74.83; the Zealot S67 ranks #113, rated 2.0/5, at $70.94. Close enough in price that the sound-quality gap is the deciding factor.
Why pick the Zealot S67: A budget waterproof speaker with a long rated battery, USB-C charging, microSD playback, and stereo pairing. The tradeoff: Sound quality is the catch.
The Onn Portable FM Boombox is the better-sounding pick. An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery. It links with other speakers (Party Sync, pairs with 1 other onn. speaker), which the Zealot S67 cannot. The catch: Reasonable frequency response, but not quite as smooth as some of the top-ranked speakers in this size.
Buy the Onn Portable FM Boombox. It is rated higher for sound quality, and saving $3.89 with the Zealot S67 does not make up for the sound-quality gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A budget waterproof speaker with a long rated battery, USB-C charging, microSD playback, and stereo pairing.
An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery.
Prices on this page were last checked October 31, 2026 at 7:11 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
| Zealot S67 | Onn Portable FM Boombox | |
|---|---|---|
| Price | $70.94 | $74.83 |
| Ranked | #113 of 115 in Large Size Portable Bluetooth Speakers | #26 of 115 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| IP Rating | IPX6 | IPX7 |
| MicroSD Playback | Yes | - |
| Weight | 5.3 lbs (2.4 kg) | 4.9 lbs (2.22 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | Yes (Party Sync, pairs with 1 other onn. speaker) |
| Power Bank | No | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.2 | - |
| Dimensions | 11.6” x 4.8” x 5.2” (294 x 122 x 132 mm) | 13.8” x 5.9” x 7.7” (350 x 149 x 195 mm) |
| Amplifier Power | 60W | 25W RMS (100W peak) |
| Drivers | 60W: Dual drivers + passive radiator | 2 speakers |
| Digital Aux Input | No | No |
| FM Tuner | - | Yes (10 presets) |
| Removable Battery | - | No |
| Lights | - | Yes |
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