Short answer: the onn Portable FM Boombox ranks #23 of 78 large speakers by sound quality at $74.83; the W-King D8 ranks #43 at $69.99. With prices this close, go by the sound-quality ranking rather than the cost.
What the onn Portable FM Boombox offers: 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. Watch for: 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.
What the W-King D8 offers: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Watch for: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Buy the onn Portable FM Boombox if sound quality matters more than the price. Buy the W-King D8 if the price matters more than sound quality.
If battery life is a priority, the W-King D8 is rated for 24 hours versus 16 hours for the onn Portable FM Boombox.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| onn Portable FM Boombox | W-King D8 | |
|---|---|---|
| Price | $74.83 | $69.99 |
| Ranked | #23 of 78 in Large Size Portable Bluetooth Speakers | #43 of 78 in Large Size Portable Bluetooth Speakers |
| Battery Life | 16 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX7 | IPX7 |
| Amplifier Power | 25W RMS (100W peak) | 90W max / 50W RMS |
| FM Tuner | Yes (10 presets) | - |
| Built-in Microphone | Yes | Yes |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Weight | 4.9 lbs (2.22 kg) | 5.4 lbs (2.43 kg) |
| Dimensions | 13.8" x 5.9" x 7.7" (350 x 149 x 195 mm) | 12.6" x 4.8" x 4.7" (320 x 121.9 x 119.4 mm) |
| Drivers | 2 speakers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| TWS | Yes | No |
| Party Mode | Yes (Party Sync, pairs with 1 other onn. speaker) | No |
| App | No | No |
| EQ | No | No |
| Aux Input | Yes | Yes |
| Digital Aux Input | No | No |
| Removable Battery | No | - |
| Discontinued | No | - |
| Omnidirectional | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | - |
| Bass Extension (-10dB) | - | 49Hz |
| Maximum SPL | - | 101dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Stereo | - | Yes |
Related Speaker Comparisons
How onn Portable FM Boombox compares with other leading options:
- onn Portable FM Boombox vs Vifa Helsinki
- JBL Xtreme 5 vs onn Portable FM Boombox
- Tribit Stormbox Lava vs onn Portable FM Boombox
- onn Portable FM Boombox vs Brane X
- Minirig 4 with subwoofer vs onn Portable FM Boombox
Prices on this page were last checked September 16, 2026 at 12:41 AM 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.
As an eBay Partner, we may be compensated if you make a purchase.
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 |
| 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 Soundcore Rave Neo 2
- onn Portable FM Boombox vs Soundcore Motion X600
- onn Portable FM Boombox vs JBL Xtreme 3
- onn Portable FM Boombox vs Marshall Middleton II
- onn Portable FM Boombox vs Bose SoundLink Max
- See all 34 comparisons
W-King D8: $69.99 Amazon eBay
Pros: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of 49Hz (-10dB).
Cons: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Full W-King D8 review and specifications →
| Amplifier Power | 90W max / 50W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6" x 4.8" x 4.7" (320 x 121.9 x 119.4 mm) |
| Drivers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 5.4 lbs (2.43 kg) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: W-King D8 speaker review 50 watts power against JBL xtreme 2 and soundcore Motion plus More from alanrossreviews →
- Alan Ross Reviews: W-King D10 speaker vs the D8, D9 and X10 WKing speakers 👀
- Alan Ross Reviews: W King D8 vs W-King D9 - budget boombox battle!
- Alan Ross Reviews: Soundcore Motion Boom vs W-King D8 and D9 - boom boom! 🥳
- Alan Ross Reviews: W-King D8 Mini vs Anker Soundcore Motion Plus Speaker
- Alan Ross Reviews: Sony xb43 JBL Xtreme 2 W-King d8 Dockin D Fine
- Head-to-Head Comparisons