Short answer: the Ultimate Ears Everboom. It ranks #35 of 103 large speakers by sound quality, rated 3.9/5, at $159.99. The Zealot S127 ranks #45, rated 3.8/5, at $148.85, $11.14 cheaper, which does not close the gap in sound quality.
The Ultimate Ears Everboom is the lighter choice. At 2.1 lbs (949 g) it weighs much less than the Zealot S127 at 7.8 lbs (3.54 kg). Watch for: Careful placement and volume setting remain important for balanced sound.
What the Zealot S127 does well: The S127 pairs a claimed 100W amplifier with four drivers - two 92mm woofers plus two 42mm units - in a 33.6 cm cabinet, which points to real outdoor loudness rather than a small desktop box. The catch: At 7.8 lbs (3.54 kg) this is a car-camping speaker, not a backpack one, and it recharges only from a 5V DC input, so refilling a 24000mAh pack takes hours; no charging time or battery-life hours are published.
Buy the Ultimate Ears Everboom. It is rated higher for sound quality, and the $11.14 you would save on the Zealot S127 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Everboom | Zealot S127 | |
|---|---|---|
| Price | $159.99 | $148.85 |
| Ranked | #35 of 103 in Large Size Portable Bluetooth Speakers | #45 of 103 in Large Size Portable Bluetooth Speakers |
| App | Yes | - |
| Battery Life | 20 hours (Manufacturer specified) | - |
| EQ | Yes | - |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Bank | No | Yes |
| Power Input | USB-C | DC 5V Type-C |
| Stereo | No | - |
| Omnidirectional | Yes | - |
| TWS | No | Yes |
| Weight | 2.1 lbs (949 g) | 7.8 lbs (3.54 kg) |
| Aux Input | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| Built-in Microphone | Yes | - |
| Bluetooth Version | 5.1 | BT 5.3 |
| Dimensions | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) | 33.6 x 17 x 17.1 cm |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators | 2 x 92mm woofers + 2 x 42mm drivers |
| Amplifier Power | 14W | 100W |
| Digital Aux Input | No | - |
| Strap | Yes (built-in loop) | - |
| Battery Capacity | - | 24000mAh |
| Features | - | TWS stereo pairing, power bank output, RGB lighting |
| Frequency Response | - | 20Hz - 20kHz |
| Lights | - | RGB |
| MicroSD Playback | - | Yes |
| USB Playback | - | Yes |
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How Ultimate Ears Everboom compares with other leading options:
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- JBL Xtreme 5 vs Ultimate Ears Everboom
- Tribit Stormbox Lava vs Ultimate Ears Everboom
- Ultimate Ears Everboom vs Brane X
- Minirig 4 with subwoofer vs Ultimate Ears Everboom
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Speakers In Full
Ultimate Ears Everboom: $159.99 Amazon eBay
Pros: Ultimate Ears Everboom uses 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators. Its 949 g, claimed 20 hours (Manufacturer specified) battery life, IP67 protection, aux input and mono playback make it a practical option for its intended room or portable use.
Cons: Careful placement and volume setting remain important for balanced sound. Warm tuning with an upper-bass boost and rolled-off treble, and the bass does not go very deep.
Full Ultimate Ears Everboom review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| Amplifier Power | 14W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | No |
| Weight | 2.1 lbs (949 g) |
- Links
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Zealot S127: $148.85 Amazon eBay
Pros: The S127 pairs a claimed 100W amplifier with four drivers - two 92mm woofers plus two 42mm units - in a 33.6 cm cabinet, which points to real outdoor loudness rather than a small desktop box. Zealot quotes 20Hz - 20kHz coverage, so it promises usable low bass. The 24000mAh battery doubles as a power bank for phones, while Bluetooth 5.3, roughly 10m range, TWS pairing, USB, microSD and AUX inputs cover most sources. IPX6 splash resistance and RGB lighting suit camping, beaches and evening parties, and reviewers rate it against far pricier JBL models. Jay’s Straight Up Reviews found it a capable performer that is not bass-heavy, and comparisons place it close to pricier JBL models.
Cons: At 3.54 kg this is a car-camping speaker, not a backpack one, and it recharges only from a 5V DC input, so refilling a 24000mAh pack takes hours; no charging time or battery-life hours are published. IPX6 survives splashes but not immersion, and Zealot lists no maximum SPL, sensitivity or impedance, so real output capability is unknown. There is no documented companion app or custom EQ, leaving tuning to on-board presets. No independent lab has measured its frequency response, distortion or loudness, so the 20Hz claim stays unverified.
Full Zealot S127 review and specifications →
| Amplifier Power | 100W |
|---|---|
| Aux Input | Yes |
| Battery Capacity | 24000mAh |
| Bluetooth | Yes |
| Bluetooth Version | BT 5.3 |
| Dimensions | 33.6 x 17 x 17.1 cm |
| Drivers | 2 x 92mm woofers + 2 x 42mm drivers |
| Features | TWS stereo pairing, power bank output, RGB lighting |
| Frequency Response | 20Hz - 20kHz |
| IP Rating | IPX6 |
| Lights | RGB |
| MicroSD Playback | Yes |
| Power Bank | Yes |
| Power Input | DC 5V Type-C |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 7.8 lbs (3.54 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons