Short answer: the Ruimatech RM-10. It ranks #29 of 113 boombox speakers by sound quality, rated 3.8/5, at $159.99; the Turtlebox Grande ranks #81, rated 2.6/5, and costs $730, so there is little reason to consider the other one.
The Ruimatech RM-10 is the better-sounding pick. An affordable three-way boombox with clear sound that holds up at full volume, water resistance and fast charging. The catch: It is tuned bass boosted, much like the JBL Boombox 3.
The Turtlebox Grande is the longer-running choice. A rugged, submersible, crush-proof speaker with a 10 inch woofer and a battery that lasts for days. It is rated for 25 hours of battery against 14 for the Ruimatech RM-10. Watch for: In YouTube sound samples it sounds only okay, and bass is shallow for a 10 inch woofer, only down 10dB at about 55Hz.
Buy the Ruimatech RM-10. It is rated higher for sound quality than the Turtlebox Grande and costs less, which makes it the one to get unless you need something the other one does better.
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
| Ruimatech RM-10 | Turtlebox Grande | |
|---|---|---|
| Price | $159.99 | $730.00 |
| Ranked | #29 of 113 in Boombox Size Portable Bluetooth Speakers | #81 of 113 in Boombox Size Portable Bluetooth Speakers |
| Amplifier Power | 140W RMS (300W peak) | 86W |
| Drivers | 80W woofer + 2x 20W midranges + 2x 10W tweeters + 2 passive radiators | 1x 10” (254mm) woofer + 1x 1.25” (32mm) titanium tweeter |
| IP Rating | IPX6 | IP67 |
| Battery Life | 14 hours at 30% volume (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.4 |
| TWS | Yes | Yes |
| App | No | No |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| Strap | No | No |
| Aux Input | - | Yes |
| Bass Extension (-10dB) | - | ~55Hz |
| Built-in Microphone | - | Yes |
| MicroSD Playback | - | Yes |
| Party Mode | - | Yes (Turtlebox Party Mode) |
| Power Input | - | DC Barrel Connector (20V/3A) |
| Weight | - | 18.8 lbs (8.53 kg) |
| Bluetooth Codecs | - | SBC |
| EQ | - | No |
| USB Playback | - | No |
| Dimensions | - | 14” x 8.4” x 11.5” (355.6 x 213.4 x 292.1 mm) |
| Digital Aux Input | - | No |
Where the Ratings Come From
- Ruimatech RM-10: reviews by Jagist and Josh’s Gadgets and More.
- Turtlebox Grande: reviews by Everyday Man, Cast South and R J.
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.
Related Speaker Comparisons
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