Short answer: the Zealot ZE21. It ranks #15 of 70 boombox speakers at $187.15; the Zealot S89 ranks #16 and costs $193.58, so there is not much of a tradeoff to weigh.
On the Zealot S89 side: A great value for the bass performance, play time and max volume in the boombox class. Set against that: On the heavy side.
The case for the Zealot ZE21: Great value for the bass performance, play time and max volume in the boombox class, though the Zealot ZE41 now beats it out. Set against that: A little rolled off up top and not that balanced through the rest of the range.
Buy the Zealot S89 if the price matters more than the ranking. Buy the Zealot ZE21 if the ranking matters more than the price.
Specifications Side By Side
| Zealot S89 | Zealot ZE21 | |
|---|---|---|
| Price | $193.58 | $187.15 |
| Ranked | #16 of 70 in Boombox Size Portable Bluetooth Speakers | #15 of 70 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | Yes (multiple modes) |
| IP Rating | IPX6 | IPX6 |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | Yes |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| TWS | Yes | Yes |
| Weight | 16.1 lbs / 7.3 kg | 20.4 lbs / 9.27 kg |
| Power Bank | Yes | Yes |
| USB Playback | Yes | Yes |
| Built in Microphone | No | No |
| Output Power | 250W | 250W |
| Dimensions | 538mm x 265mm x 240mm | 424mm x 262mm x 363mm |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 130W subwoofer + 2x 50mm woofers + passive radiators |
| Max Volume | - | 116dB |
The Two Speakers In Full
Zealot S89: $193.58 Aliexpress Amazon
Pros: A great value for the bass performance, play time and max volume in the boombox class. Likely the same internals as the Zealot ZE21
Cons: On the heavy side. A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers. Bass EQ is bloated and muddy sounding
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Dimensions | 538mm x 265mm x 240mm |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Output Power | 250W |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.1 lbs / 7.3 kg |
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!!
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE!
- Head-to-Head Comparisons
- Links
Zealot ZE21: $187.15 Aliexpress Amazon
Pros: Great value for the bass performance, play time and max volume in the boombox class, though the Zealot ZE41 now beats it out.
Cons: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers. Bass EQ is bloated and muddy sounding
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | No |
| Dimensions | 424mm x 262mm x 363mm |
| Drivers | 130W subwoofer + 2x 50mm woofers + passive radiators |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| Max Volume | 116dB |
| MicroSD Playback | Yes |
| Output Power | 250W |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 20.4 lbs / 9.27 kg |
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Jbl Boombox 4 Vs Zealot Ze21!!!
- Jagist reviews: Zealot Ze21 Vs Tribit Stormbox Blast 2!!!
- Techder Audios: JBL Boombox 4 VS Zealot ZE21 BATTLE OF THE BOOMBOXES!
- Jay’s Straight Up Reviews & More: Zealot ZE21 vs JBL Boombox 3 Tailgater Special @20ft. The Budget Beast Against the OG Boombox
- Head-to-Head Comparisons
- Links
As an Amazon Associate I earn from qualifying purchases.
Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.