Short answer: the onn Portable FM Boombox. It ranks #26 of 82 large speakers by sound quality, rated 4.2/5, at $74.83; the Soundcore Motion X500 ranks #27, rated 4.1/5, and costs $99.99, which makes this an easy call rather than a real tradeoff.
The case for the onn Portable FM Boombox: Extremely good value. The catch: Reasonable frequency response, but not quite as smooth as some of the top-ranked speakers in this size.
Why pick the Soundcore Motion X500: 40W stereo with 3-driver layout (two tweeters + woofer). Watch for: A little bright on top, a custom EQ can flatten things out a bit.
Buy the onn Portable FM Boombox. It is rated higher for sound quality than the Soundcore Motion X500 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| onn Portable FM Boombox | Soundcore Motion X500 | |
|---|---|---|
| Price | $74.83 | $99.99 |
| Ranked | #26 of 82 in Large Size Portable Bluetooth Speakers | #27 of 82 in Large Size Portable Bluetooth Speakers |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | IPX7 | IPX7 |
| Amplifier Power | 25W RMS (100W peak) | 40W |
| 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) | 4.6 lbs (2.1 kg) |
| Dimensions | 13.8” x 5.9” x 7.7” (350 x 149 x 195 mm) | 8.7” x 8” x 3.2” (220 x 202 x 81 mm) |
| Drivers | 2 speakers | 2x 58mm (2.3”) forward-firing full-range drivers + 1x 43mm (1.7”) upward-firing driver |
| TWS | Yes | Yes |
| Party Mode | Yes (Party Sync, pairs with 1 other onn. speaker) | No |
| App | No | Yes |
| EQ | No | Yes |
| Aux Input | Yes | Yes |
| Digital Aux Input | No | No |
| Removable Battery | No | - |
| Discontinued | No | - |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | LDAC, SBC |
| Lights | Yes | - |
| Stereo | Yes | Yes |
| Bass Extension (-10dB) | - | 48Hz |
| Maximum SPL | - | 104dB (measured by Alan Ross Reviews) |
| Bluetooth Version | - | 5.3 |
| Frequency Response | - | 50Hz - 40kHz (Manufacturer specified) |
| Strap | - | No |
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Prices on this page were last checked September 26, 2026 at 11:14 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
onn Portable FM Boombox: $74.83 Walmart eBay
Pros: Extremely good value. Reasonably deep bass, though not as deep as something like the JBL Xtreme 3, Soundcore Boom 2, or Tribit Stormbox Lava. IPX7 waterproof and floats. FM radio with 10 presets. 6 multicolor LED lighting effects. Can run on battery or corded power.
Cons: Reasonable frequency response, but not quite as smooth as some of the top-ranked speakers in this size. No custom EQ. Only available in the United States and Canada.
Full onn Portable FM Boombox review and specifications →
| Amplifier Power | 25W RMS (100W peak) |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 13.8” x 5.9” x 7.7” (350 x 149 x 195 mm) |
| Discontinued | No |
| Drivers | 2 speakers |
| EQ | No |
| FM Tuner | Yes (10 presets) |
| IP Rating | IPX7 |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync, pairs with 1 other onn. speaker) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.9 lbs (2.22 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- onn Portable FM Boombox vs Bose SoundLink Plus
- onn Portable FM Boombox vs Sonos Move 2
- onn Portable FM Boombox vs Teufel Rockster Cross
- onn Portable FM Boombox vs Marshall Middleton II
- onn Portable FM Boombox vs Soundcore Rave Neo 2
- onn Portable FM Boombox vs Soundcore Motion X600
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- onn Portable FM Boombox vs JBL Xtreme 3
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Soundcore Motion X500: $99.99 Amazon eBay
Pros: 40W stereo with 3-driver layout (two tweeters + woofer). IPX7 weatherproof rating. Compact and very portable. Fine build quality at this price. Spatial Dynamic mode provides immersive sound. Gets close to 12 hour battery claim. Measured bass extension of 48Hz (-10dB).
Cons: A little bright on top, a custom EQ can flatten things out a bit. Peaks at 250Hz and dip at 1kHz
Full Soundcore Motion X500 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | LDAC, SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.7” x 8” x 3.2” (220 x 202 x 81 mm) |
| Drivers | 2x 58mm (2.3”) forward-firing full-range drivers + 1x 43mm (1.7”) upward-firing driver |
| EQ | Yes |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 104dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 4.6 lbs (2.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Motion X500 vs Sonos Move 2
- Soundcore Motion X500 vs Bose SoundLink Plus
- Soundcore Motion X500 vs Sonos Move
- Soundcore Motion X500 vs Bogasing S8 Pro Max
- Soundcore Motion X500 vs Marshall Middleton II
- Soundcore Motion X500 vs Teufel Rockster Cross
- Soundcore Motion X500 vs Mee audio PartySPKR
- Soundcore Motion X500 vs Soundcore Rave Neo 2
- See all 50 comparisons