Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Zealot S97 ranks #66 of 120 large speakers by sound quality at $79.98; the Onn Medium Party Speaker Gen 2 ranks #65 of 113 boombox speakers by sound quality at $90.
The Zealot S97 is the lighter pick. A budget boombox with surprisingly deep bass for its size, waterproofing, power bank outputs, and microSD and aux playback. At 7.3 lbs (3.3 kg) it weighs noticeably less than the Onn Medium Party Speaker Gen 2 at 11 lbs (5 kg). It has an adjustable EQ, which the Onn Medium Party Speaker Gen 2 lacks. It plays in stereo from a single unit, unlike the Onn Medium Party Speaker Gen 2. The catch: It is not especially loud for its size, battery life is only a claimed 12 hours, and the bass preset can swamp the rest of the music.
The Onn Medium Party Speaker Gen 2 is the longer-running option. An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio. It is rated for 20 hours of battery against 12 for the Zealot S97. The tradeoff: Lacking detail compared to the Onn Large Party gen 2 and not as deep of bass.
Buy the Zealot S97 ($79.98) for a large speaker; the Onn Medium Party Speaker Gen 2 ($90) suits a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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 S97 | Onn Medium Party Speaker Gen 2 | |
|---|---|---|
| Price | $79.98 | $90 |
| Ranked | #66 of 120 in Large Size Portable Bluetooth Speakers | #65 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| EQ | 3 EQ presets | No |
| IP Rating | IPX6 | IPX7 |
| MicroSD Playback | Yes | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Party Sync Mode) |
| Power Input | USB-C | AC Power cord |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 7.3 lbs (3.3 kg) | 11 lbs (5 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A, 5V/2.1A) |
| Bluetooth Version | 5.2 | - |
| Dimensions | 12.6” x 7.3” x 5.9” (321 x 185 x 151 mm) | 9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm) |
| Amplifier Power | 80W | 50W RMS / 200W peak |
| Drivers | 2x 76mm (3”) woofers + 2x 38mm tweeters + 2x passive radiators | 8” (203mm) woofer + tweeters |
| Digital Aux Input | No | No |
| FM Tuner | - | Yes (16 presets) |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| USB Playback | - | No |
| Lights | - | Yes |
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