Short answer: the Zealot S89. It ranks #19 of 113 boombox speakers by sound quality (rated 4.0/5) at $193.58 and is still sold new; the Bumpboxx Flare 8 ranks #82 (rated 2.6/5) and is discontinued, so it is only an option used. The Bumpboxx Flare 8’s replacement, the Bumpboxx Flare8 Pro, is rated 2.8/5 at $449.
The Zealot S89 is the better-sounding, longer-running option. A great value boombox with deep bass, very high volume, a 40 hour battery and water resistance for outdoor parties. It is rated for 40 hours of battery against 12 for the Bumpboxx Flare 8. It links with other speakers (PartyAdd up to 100 speakers), which the Bumpboxx Flare 8 cannot. The tradeoff: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
The case for the Bumpboxx Flare 8: A retro styled party speaker with FM radio, water resistance and high volume for small outdoor parties. The catch: Bass is thuddy rather than deep or controlled, and there is no app to improve the tuning.
Buy the Zealot S89. It is rated higher for sound quality, and the Bumpboxx Flare 8 is discontinued, so it is only available used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| Zealot S89 | Bumpboxx Flare 8 | |
|---|---|---|
| Price | $193.58 | $400 Discontinued |
| Ranked | #19 of 113 in Boombox Size Portable Bluetooth Speakers | #82 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | - |
| Battery Life | 40 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | Yes |
| IP Rating | IPX6 | IPX6 |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | Yes |
| Party Mode | Yes (PartyAdd up to 100 speakers) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 16.1 lbs (7.3 kg) | 19 lbs (8.62 kg) |
| Power Bank | Yes (USB-A + USB-C) | No |
| USB Playback | Yes | Yes |
| Built-in Microphone | No | No |
| Amplifier Power | 250W | 200W |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | 28” x 8” x 16” (711 x 203 x 406 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 8” woofer + tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Strap | No | - |
| FM Tuner | - | Yes |
| Maximum SPL | - | 118dB (Manufacturer specified) |
| Lights | - | Yes |
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