Short answer: the Ultimate Ears Everboom on measured sound quality, the Zealot S97 on price. The Ultimate Ears Everboom ranks #32 of 77 large speakers at $149.99. The Zealot S97 ranks #46 at $65.86, $84.13 cheaper.
What the Ultimate Ears Everboom offers: This speaker may move around as we get better sound samples Watch for: Has an upper bass boost and is tuned warm with rolled off treble. Not very deep bass.
What the Zealot S97 offers: There is nothing else for $48 with that deep of bass and a reasonable tuning Watch for: Doesn’t get very loud compared to other speakers in this class. Short battery life. Pretty heavy. Many say the S67 has deeper bass, but also gets more distorted
Buy the Ultimate Ears Everboom when sound quality outweighs the price for you, and the Zealot S97 when the price outweighs sound quality instead.
There is a real battery-life gap here: the Ultimate Ears Everboom is rated for 20 hours, the Zealot S97 only 12 hours.
Specifications Side By Side
| Ultimate Ears Everboom | Zealot S97 | |
|---|---|---|
| Price | $149.99 | $65.86 with coupon YZZL10 |
| Ranked | #32 of 77 in Large Size Portable Bluetooth Speakers | #46 of 77 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes | 3 EQ presets |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (PartyUp up to 50 speakers) | Yes (PartyAdd up to 100 speakers) |
| Power Bank | No | Yes (USB-A + USB-C) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | No |
| Weight | 2.1 lbs / 949 g | 7.3 lbs / 3.3 kg |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 8.1" x 3.3" x 4.3" (205 x 85 x 110 mm) | 12.6" x 7.3" x 5.9" (321 x 185 x 151 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators | 2x 76mm (3") woofers + 2x 38mm tweeters + 2x passive radiators |
| Output Power | 14W | 80W |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked August 27, 2026 at 10:09 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: $149.99 Amazon eBay
Pros: This speaker may move around as we get better sound samples
Cons: Has an upper bass boost and is tuned warm with rolled off treble. Not very deep bass.
Full Ultimate Ears Everboom review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| 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 |
| Output Power | 14W |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 2.1 lbs / 949 g |
- Links
- Reviews, Comparisons and Sound Samples
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Zealot S97: $65.86 with coupon YZZL10 Aliexpress eBay
Pros: There is nothing else for $48 with that deep of bass and a reasonable tuning
Cons: Doesn’t get very loud compared to other speakers in this class. Short battery life. Pretty heavy. Many say the S67 has deeper bass, but also gets more distorted
Full Zealot S97 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6" x 7.3" x 5.9" (321 x 185 x 151 mm) |
| Drivers | 2x 76mm (3") woofers + 2x 38mm tweeters + 2x passive radiators |
| EQ | 3 EQ presets |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 80W |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 7.3 lbs / 3.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons