Short answer: the Zealot S89. It ranks #19 of 76 boombox speakers by sound quality, rated 4.0/5, at $246.99; the Bumpboxx Flare 8 ranks #58, rated 2.6/5, and costs $400, so there is not much of a tradeoff to weigh.
The case for the Zealot S89: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. The catch: 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, 8.6kg party speaker with useful real-world features: IPX6 splash resistance, FM radio, USB and microSD playback, aux input, TWS pairing and a claimed 118dB maximum output. 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 than the Bumpboxx Flare 8 and costs less, which makes it the one to get unless you need something the other one does better.
Battery life favors the Zealot S89: rated for 40 hours against 12 hours for the Bumpboxx Flare 8.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Zealot S89 | Bumpboxx Flare 8 | |
|---|---|---|
| Price | $246.99 | $400 |
| Ranked | #19 of 76 in Boombox Size Portable Bluetooth Speakers | #58 of 76 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 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 |
Related Speaker Comparisons
More top alternatives to Zealot S89:
- Tribit Stormbox Blast vs Zealot S89
- Harman Kardon Go + Play 3 vs Zealot S89
- JBL Partybox Encore 2 vs Zealot S89
- JBL Partybox Encore Essential 2 vs Zealot S89
- JBL Partybox Encore vs Zealot S89
Prices on this page were last checked September 26, 2026 at 11:14 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Zealot S89: $246.99 Amazon AliExpress eBay
Pros: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Listener comparisons find it capable of very high output and substantial bass for outdoor use. A great value for its bass, battery life and maximum volume. Measured bass extension of 36Hz (-10dB).
Cons: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers. The heavy cabinet and basic finish also make it less polished for daily portability, while its multiple EQ modes cannot substitute for a genuinely neutral tuning.
Full Zealot S89 review and specifications →
| Amplifier Power | 250W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.1 lbs (7.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test More from Oluv’Sone →
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test More from Dominik Reviews →
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!! More from Jagistreviews →
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE! More from techderaudios →
- Head-to-Head Comparisons
Bumpboxx Flare 8: $400 Bumpboxx eBay
Pros: A retro-styled, 8.6kg party speaker with useful real-world features: IPX6 splash resistance, FM radio, USB and microSD playback, aux input, TWS pairing and a claimed 118dB maximum output. It can play much louder than compact Bluetooth speakers and is easy to aim at a small outdoor gathering.
Cons: Bass is thuddy rather than deep or controlled, and there is no app to improve the tuning. Owner reports also raise reliability concerns, including noisy or intermittent volume controls and sound cutting out at high volume. It is a fun-looking niche product, not a sound-quality or durability leader.
Full Bumpboxx Flare 8 review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 28” x 8” x 16” (711 x 203 x 406 mm) |
| Drivers | 8” woofer + tweeters |
| EQ | Yes |
| FM Tuner | Yes |
| IP Rating | IPX6 |
| Lights | Yes |
| Maximum SPL | 118dB (Manufacturer specified) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 19 lbs (8.62 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Bumpboxx Flare 8 vs Turtlebox Grande
- Bumpboxx Flare 8 vs EcoXGear Defender
- Bumpboxx Flare 8 vs Marshall Tufton
- Bumpboxx Flare 8 vs JBL Boombox
- Bumpboxx Flare 8 vs Braven XXL 2
- Bumpboxx Flare 8 vs JBL Partybox On the Go
- Bumpboxx Flare 8 vs Turtlebox Gen 3
- Bumpboxx Flare 8 vs Sony ULT Field 7
- See all 27 comparisons