Short answer: the Onn Portable FM Boombox. It ranks #26 of 115 large speakers by sound quality, rated 4.2/5, at $74.83; the Ultimate Ears Everboom ranks #35, rated 3.9/5, and costs $149.99, so there is not much of a tradeoff to weigh.
The Onn Portable FM Boombox is the better-sounding pick. An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery. It plays in stereo from a single unit, unlike the Ultimate Ears Everboom. The tradeoff: Reasonable frequency response, but not quite as smooth as some of the top-ranked speakers in this size.
The Ultimate Ears Everboom is the lighter pick. A light, waterproof speaker that plays in every direction, with warm sound, a long battery and linking with many speakers. At 2.1 lbs (949 g) it weighs much less than the Onn Portable FM Boombox at 4.9 lbs (2.22 kg). It has an adjustable EQ, which the Onn Portable FM Boombox lacks. The tradeoff: Careful placement and volume setting remain important for balanced sound.
Buy the Onn Portable FM Boombox. It is rated higher for sound quality than the Ultimate Ears Everboom and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery.
A light, waterproof speaker that plays in every direction, with warm sound, a long battery and linking with many speakers.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Onn Portable FM Boombox | Ultimate Ears Everboom | |
|---|---|---|
| Price | $74.83 | $149.99 |
| Ranked | #26 of 115 in Large Size Portable Bluetooth Speakers | #35 of 115 in Large Size Portable Bluetooth Speakers |
| Battery Life | 16 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Amplifier Power | 25W RMS (100W peak) | 14W |
| FM Tuner | Yes (10 presets) | - |
| Built-in Microphone | Yes | Yes |
| Power Bank | Yes (USB-A) | No |
| Power Input | USB-C | USB-C |
| Weight | 4.9 lbs (2.22 kg) | 2.1 lbs (949 g) |
| Dimensions | 13.8” x 5.9” x 7.7” (350 x 149 x 195 mm) | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) |
| Drivers | 2 speakers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| TWS | Yes | No |
| Party Mode | Yes (Party Sync, pairs with 1 other onn. speaker) | Yes (PartyUp up to 50 speakers) |
| App | No | Yes |
| EQ | No | Yes |
| Aux Input | Yes | Yes |
| Digital Aux Input | No | No |
| Removable Battery | No | - |
| Omnidirectional | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | - |
| Stereo | Yes | No |
| Bluetooth Version | - | 5.1 |
| Strap | - | Yes (built-in loop) |
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