Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Zealot ZE51 ranks #16 of 113 boombox speakers by sound quality at $235.33; the Soundcore Rave 3S ranks #20 of 53 party speakers by sound quality at $299.99.

What the Zealot ZE51 does well: A big stereo boombox with clean, wide sound and low distortion at high volume for outdoor parties. It plays in stereo from a single unit, unlike the Soundcore Rave 3S. The catch: The Zealot ZE41 still wins on raw bass depth and price.
The Soundcore Rave 3S is the longer-running choice. A big party speaker with two wireless microphones, a remote, and a vocal removal feature for karaoke nights. It is rated for 12 hours of battery against 4 for the Zealot ZE51. The tradeoff: Some upper bass and upper mids boost.
Buy the Zealot ZE51 at $235.33 for a boombox speaker, or the Soundcore Rave 3S at $299.99 for a party speaker instead.
Want more options? Browse the full 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Zealot ZE51 | Soundcore Rave 3S | |
|---|---|---|
| Price | $235.33 after coupon | $299.99 |
| Ranked | #16 of 113 in Boombox Size Portable Bluetooth Speakers | #20 of 53 in Party Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 22.1” x 9.4” x 13” (562 x 238 x 331 mm) | 21.7”H x 11.1”W x 12”D (550 x 283 x 306 mm) |
| EQ | Yes (Hi-Res, 3D Surround, Extra Bass, Vocal and other sound modes) | Yes |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IPX4 |
| Microphone Input | Yes (Karaoke mode) | Yes (Karaoke mode with reverb effect) |
| MicroSD Playback | Yes | - |
| Amplifier Power | 250W | 200W |
| Power Bank | Yes (USB-A + USB-C) | No |
| Power Input | Type-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 26 lbs (11.81 kg) | 21.6 lbs (9.8 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Drivers | 1x 133mm + 2x 93mm + 2x 45mm | 1x 6.5” (165mm) woofer + 3x 2.5” (63mm) full-range drivers |
| Battery Life | 4 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Strap | Yes (strap) | No |
| Guitar Input | - | Yes |
| Party Mode | - | Yes (Auracast) |
| Wireless Microphones | - | Yes 2 Included |
| Lights | - | Yes |
Related Speaker Comparisons
More top alternatives to Zealot ZE51: