Short answer: the Zealot ZE51. It ranks #16 of 112 boombox speakers by sound quality, rated 4.1/5, at $235.33; the EcoXGear Defender ranks #84, rated 2.5/5, and costs $299.99, so there is not much of a tradeoff to weigh.
The Zealot ZE51 is the better-sounding pick. 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 EcoXGear Defender. Watch for: The Zealot ZE41 still wins on raw bass depth and price.
The EcoXGear Defender is the longer-running, lighter pick. A rugged, floating waterproof speaker that gets very loud for its size, with a flashlight, bottle opener and power bank. It is rated for 25 hours of battery against 4 for the Zealot ZE51. At 10 lbs (4.54 kg) it weighs much less than the Zealot ZE51 at 26 lbs (11.81 kg). It is rated IP67 against IPX5 for the Zealot ZE51. Watch for: Its single front-facing driver layout has narrow dispersion: clarity and detail drop noticeably when you move off-axis, and the soundstage is limited.
Buy the Zealot ZE51. It is rated higher for sound quality than the EcoXGear Defender and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Portable Bluetooth rankings.
A big stereo boombox with clean, wide sound and low distortion at high volume for outdoor parties.
A rugged, floating waterproof speaker that gets very loud for its size, with a flashlight, bottle opener and power bank.
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Specifications Side By Side
| Zealot ZE51 | EcoXGear Defender | |
|---|---|---|
| Price | $235.33 after coupon | $299.99 |
| Ranked | #16 of 112 in Boombox Size Portable Bluetooth Speakers | #84 of 112 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 22.1” x 9.4” x 13” (562 x 238 x 331 mm) | 6.7” x 15.4” x 9.6” (170.2 x 391.2 x 243.8 mm) |
| EQ | Yes (Hi-Res, 3D Surround, Extra Bass, Vocal and other sound modes) | Yes |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IP67 |
| Microphone Input | Yes (Karaoke mode) | - |
| MicroSD Playback | Yes | - |
| Amplifier Power | 250W | 100W |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-C, 5V/2.1A) |
| Power Input | Type-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 26 lbs (11.81 kg) | 10 lbs (4.54 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Drivers | 1x 133mm + 2x 93mm + 2x 45mm | 52mm full-range driver |
| Battery Life | 4 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Strap | Yes (strap) | No |
| Party Mode | - | No |
| Built-in Microphone | - | Yes |
| FM Tuner | - | No |
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