Short answer: the Zealot PT21, because the S89 repeats its siblings’ tuning flaws. The S89 is great value for bass, playtime and max volume and likely shares the ZE21’s internals, but it is heavy with the same rolled-off top end and bloated bass EQ. The PT21 adds dual 166mm woofers and a bundled wireless mic with echo for karaoke, at $225.86 against $193.58.
Buy the Zealot PT21 at $225.86 for a party speaker, or the Zealot S89 at $193.58 for a boombox 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 PT21 | Zealot S89 | |
|---|---|---|
| Price | $225.86 | $193.58 |
| Ranked | #12 of 53 in Party Size Portable Bluetooth Speakers | #19 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (Bass, Voice, Standard modes) | Yes (multiple modes) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| MicroSD Playback | Yes | Yes |
| Amplifier Power | 200W | 250W |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A) | Yes (USB-A + USB-C) |
| Power Input | Type-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 20.7 lbs (9.4 kg) | 16.1 lbs (7.3 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | - |
| Battery Life | 60 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Bass Extension (-10dB) | - | 36Hz |
| Built-in Microphone | - | No |
| Strap | - | No |
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