Short answer: the JBL Boombox 4 if sound quality matters most, the Ruimatech RM-10 if price matters most. The JBL Boombox 4 ranks #20 of 113 boombox speakers, rated 4.0/5, at $549.95. The Ruimatech RM-10 ranks #29, rated 3.8/5, at $159.99, $389.96 cheaper.
The JBL Boombox 4 is the longer-running, tougher option. An extremely loud boombox for its size with fully waterproof, dustproof build, a long battery and a flexible app EQ. It is rated for 28 hours of battery against 14 for the Ruimatech RM-10. It is rated IP68 against IPX6 for the Ruimatech RM-10. Watch for: Pretty overpriced for the category.
What the Ruimatech RM-10 does well: An affordable three-way boombox with clear sound that holds up at full volume, water resistance and fast charging. The tradeoff: It is tuned bass boosted, much like the JBL Boombox 3.
Buy the JBL Boombox 4 if sound quality is the priority over the price, or the Ruimatech RM-10 if the price is the priority over sound quality.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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
| JBL Boombox 4 | Ruimatech RM-10 | |
|---|---|---|
| Price | $549.95 | $159.99 |
| Ranked | #20 of 113 in Boombox Size Portable Bluetooth Speakers | #29 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | - |
| Bass Extension (-10dB) | 41Hz | - |
| Battery Life | 28 hours (Manufacturer specified) | 14 hours at 30% volume (Manufacturer specified) |
| EQ | Yes (7 band) | - |
| IP Rating | IP68 | IPX6 |
| Bluetooth Latency | AAC 144ms, SBC 48ms | - |
| Maximum SPL | 115dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | - |
| Power Input | AC Power cord | - |
| Removable Battery | Yes | - |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| Weight | 13.2 lbs (5.98 kg) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, LC3, AAC | - |
| Bluetooth Version | 5.4 | 5.3 |
| Built-in Microphone | No | - |
| Power Bank | Yes (USB-C, up to 30W) | Yes (USB-C) |
| TWS | Yes | Yes |
| Digital Aux Input | Yes (USB-C) | - |
| USB Playback | No | - |
| FM Tuner | No | - |
| Microphone Input | No | - |
| MicroSD Playback | No | - |
| Amplifier Power | 210W AC / 200W battery | 140W RMS (300W peak) |
| Dimensions | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) | - |
| Drivers | 2x 123mm woofers + 2x 20mm tweeters with passive radiators | 80W woofer + 2x 20W midranges + 2x 10W tweeters + 2 passive radiators |
| Strap | No | No |
Where the Ratings Come From
- JBL Boombox 4: reviews by JOY‘s 🎧3D🔈Audio-Show, Alan Ross and M1MTechChannel.
- Ruimatech RM-10: reviews by Jagist and Josh’s Gadgets and More.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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