Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Zealot S89 ranks #19 of 113 boombox speakers by sound quality at $193.58; the Onn Large Party gen 2 ranks #17 of 53 party speakers by sound quality at $129.
The Zealot S89 is the longer-running, lighter pick. 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 Onn Large Party gen 2. At 16.1 lbs (7.3 kg) it weighs noticeably less than the Onn Large Party gen 2 at 20.9 lbs (9.5 kg). It is rated IPX6 against IPX4 for the Onn Large Party gen 2. Watch for: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
Why pick the Onn Large Party gen 2: A budget party speaker on wheels with real bass impact, karaoke inputs and an FM radio. Watch for: The low price shows in the refinement.
Buy the Zealot S89 at $193.58 if you want a boombox speaker. Buy the Onn Large Party gen 2 at $129 if you want a party speaker instead.
Looking for alternatives? See the complete 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
| Zealot S89 | Onn Large Party gen 2 | |
|---|---|---|
| Price | $193.58 | $129 |
| Ranked | #19 of 113 in Boombox Size Portable Bluetooth Speakers | #17 of 53 in Party 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) | No |
| IP Rating | IPX6 | IPX4 |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Party Sync Mode) |
| Power Input | USB-C | AC Power cord |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 16.1 lbs (7.3 kg) | 20.9 lbs (9.5 kg) |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A, 5V/2.1A) |
| USB Playback | Yes | No |
| Built-in Microphone | No | - |
| Amplifier Power | 250W | 160W RMS (640W peak) |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | Dual 8” (203mm) woofers + dual tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Strap | No | No |
| FM Tuner | - | Yes |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Lights | - | Yes |
| Wheels | - | Yes |
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