Short answer: the Ruimatech RM-10. It ranks #29 of 91 boombox speakers by sound quality, rated 3.8/5, at $159.99; the Zealot S78 ranks #90, rated 2.0/5, at $159.68. With prices this close, go by the sound-quality ranking rather than the cost.
The Ruimatech RM-10 is the better-sounding choice. A three-way boombox (80W woofer, two 20W midranges, two 10W tweeters and dual passive radiators, 140W RMS) with a hi-fi leaning clarity, highs that don’t get screechy at max volume, and bass that holds on at full volume. Watch for: It is tuned bass boosted, much like the JBL Boombox 3.
The Zealot S78 is the longer-running choice. A robust 9.7 lbs (4.4 kg) party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. It is rated for 40 hours of battery against 14 for the Ruimatech RM-10. Watch for: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting.
Buy the Ruimatech RM-10. It is rated higher for sound quality, and the $0.31 you would save on the Zealot S78 does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ruimatech RM-10 | Zealot S78 | |
|---|---|---|
| Price | $159.99 | $159.68 |
| Ranked | #29 of 91 in Boombox Size Portable Bluetooth Speakers | #90 of 91 in Boombox Size Portable Bluetooth Speakers |
| Amplifier Power | 140W RMS (300W peak) | 120W RMS / 150W peak |
| Drivers | 80W woofer + 2x 20W midranges + 2x 10W tweeters + 2 passive radiators | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| IP Rating | IPX6 | IP67 |
| Battery Life | 14 hours at 30% volume (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| TWS | Yes | Yes |
| App | No | No |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| Strap | No | Yes (detachable shoulder strap) |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
| Weight | - | 9.7 lbs (4.4 kg) |
| Bluetooth Codecs | - | SBC |
| EQ | - | Yes (multiple modes) |
| Party Mode | - | No |
| USB Playback | - | Yes |
| Built-in Microphone | - | No |
| Power Input | - | USB-C |
| Dimensions | - | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Digital Aux Input | - | No |
Related Speaker Comparisons
More top alternatives to Ruimatech RM-10:
- Tribit Stormbox Blast vs Ruimatech RM-10
- JBL Partybox Encore 2 vs Ruimatech RM-10
- JBL PartyBox On-The-Go 2 Plus vs Ruimatech RM-10
- JBL Partybox Encore Essential 2 vs Ruimatech RM-10
- JBL Partybox Encore Essential vs Ruimatech RM-10
Prices on this page were last checked October 4, 2026 at 9:58 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
Ruimatech RM-10: $159.99 Amazon eBay
Pros: A three-way boombox (80W woofer, two 20W midranges, two 10W tweeters and dual passive radiators, 140W RMS) with a hi-fi leaning clarity, highs that don’t get screechy at max volume, and bass that holds on at full volume. Side by side it beat the W-King X20S and X20 and sounded as good as the Tribit Stormbox Blast 2, especially at higher volume. IPX6, a claimed 14 hours, a USB-C power bank, 30W fast charging and stereo pairing.
Cons: It is tuned bass boosted, much like the JBL Boombox 3. There is no app or custom EQ and no shoulder strap, and the design is plain.
Full Ruimatech RM-10 review and specifications →
| Amplifier Power | 140W RMS (300W peak) |
|---|---|
| App | No |
| Battery Life | 14 hours at 30% volume (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Version | 5.3 |
| Drivers | 80W woofer + 2x 20W midranges + 2x 10W tweeters + 2 passive radiators |
| IP Rating | IPX6 |
| Omnidirectional | No |
| Power Bank | Yes (USB-C) |
| Stereo | Partially |
| Strap | No |
| TWS | Yes |
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Ruimatech RM-10 Vs W-king X20!!! Battle Of Affordability!!! More from Jagistreviews →
- Jagist reviews: Ruimatech RM-10 Vs W-king X20s!!! Battle Of The Affordable’s!!!
- Jagist reviews: Tribit Stormbox Blast 2 Firmware 11 Vs Ruimatech RM-10!!! Battle Of The 3 Ways!!!
- Josh’s Gadgets and More: JBL Boombox 3 Wifi vs Ruimatech RM-10
- Head-to-Head Comparisons
- Ruimatech RM-10 vs W-King X20S
- Ruimatech RM-10 vs Tribit Stormbox Blast 2
- Ruimatech RM-10 vs JBL Boombox 3
- Ruimatech RM-10 vs JBL Boombox 3 Wifi
- Ruimatech RM-10 vs W-King H330
- Ruimatech RM-10 vs Soundcore Boom 2 Plus
- Ruimatech RM-10 vs Hopestar A90
- Ruimatech RM-10 vs W-King X20
- See all 30 comparisons
Zealot S78: $159.68 Amazon AliExpress eBay
Pros: A robust 4.4kg party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. Reviews find it very loud with useful bass and long claimed battery life, making it a credible choice for outdoor gatherings.
Cons: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting. It has no app-based EQ, and the bass and midrange refinement do not match better-established boombox speakers; assess its sound in person if tonal accuracy matters.
Full Zealot S78 review and specifications →
| Amplifier Power | 120W RMS / 150W peak |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| EQ | Yes (multiple modes) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 9.7 lbs (4.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: W-King X20 vs Zealot S78 Bluetooth Boombox Battle Outdoor Tailgater Special 🚗 Let the Whoopin’ Begin More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: DBSOARS F29 Max vs Zealot S78 🛜 (5B) Budget Bluetooth Boombox Basement Battle 🔊 Bass Modes Enabled
- Head-to-Head Comparisons