Short answer: the Zealot S95. It ranks #26 of 75 boombox speakers by sound quality at $157.41; the Diamondboxx M3 ranks #53 and costs $700, which makes this an easy call rather than a real tradeoff.
What the Diamondboxx M3 offers: An unusually compact 5kg high-output boombox, with a claimed 200W RMS Class A/B amplifier, 114dB maximum level, active crossovers and a choice of large battery packs. It has aux input, USB-C power and TWS pairing, while the aluminum heat sink is designed to sustain loud playback without thermal shutdown. Watch for: Despite its output, bass does not reach as deep as the best large portables and can distort when pushed hard. The treble-forward tuning can sound aggressive, there is no app or EQ to correct it, and the lack of a water rating makes it a poor match for poolside or rough-weather use.
What the Zealot S95 offers: A good value for the boombox class. Appears to be the same internals as the ZE01. Bigger case and goes deeper than the ZE01 Watch for: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers.
Buy the Zealot S95. It ranks higher for sound quality than the Diamondboxx M3 and costs less, so the other one has nothing left to offer.
If battery life is a priority, the Diamondboxx M3 is rated for 40 hours versus 12 hours for the Zealot S95.
There is a real gap in water resistance: the Zealot S95 at IPX6 (powerful water jets) against the Diamondboxx M3, which has no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Diamondboxx M3 | Zealot S95 | |
|---|---|---|
| Price | $700 | $157.41 |
| Ranked | #53 of 75 in Boombox Size Portable Bluetooth Speakers | #26 of 75 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 40 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| IP Rating | None | IPX6 |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 11 lbs (5 kg) | 11.3 lbs (5.11 kg) |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | Yes (multiple modes) |
| TWS | Yes | Yes |
| Party Mode | No | Yes (PartyAdd up to 100 speakers) |
| Power Bank | No | Yes (USB-A, 5V/2A) |
| USB Playback | No | Yes |
| Built-in Microphone | No | No |
| Power Input | USB-C | USB-C |
| FM Tuner | No | - |
| Amplifier Power | 200W RMS / 400W peak | 120W |
| Dimensions | 14.7" x 9" x 8" (373.4 x 228.6 x 203.2 mm) | 14.1" x 9.6" x 6.6" (358 x 243 x 167 mm) |
| Drivers | 3" woofer + tweeter array | 130W subwoofer + dual drivers |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 45Hz |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
How Zealot S95 compares with other leading options:
- Earfun Uboom X vs Zealot S95
- Tribit Stormbox Blast vs Zealot S95
- Harman Kardon Go + Play 3 vs Zealot S95
- JBL Partybox Encore 2 vs Zealot S95
- JBL Partybox Encore Essential 2 vs Zealot S95
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.
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The Two Speakers In Full
Diamondboxx M3: $700 eBay
Pros: An unusually compact 5kg high-output boombox, with a claimed 200W RMS Class A/B amplifier, 114dB maximum level, active crossovers and a choice of large battery packs. It has aux input, USB-C power and TWS pairing, while the aluminum heat sink is designed to sustain loud playback without thermal shutdown.
Cons: Despite its output, bass does not reach as deep as the best large portables and can distort when pushed hard. The treble-forward tuning can sound aggressive, there is no app or EQ to correct it, and the lack of a water rating makes it a poor match for poolside or rough-weather use.
Full Diamondboxx M3 review and specifications →
| Amplifier Power | 200W RMS / 400W peak |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 14.7" x 9" x 8" (373.4 x 228.6 x 203.2 mm) |
| Drivers | 3" woofer + tweeter array |
| EQ | No |
| FM Tuner | No |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | No |
| Weight | 11 lbs (5 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
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Zealot S95: $157.41 Amazon Aliexpress eBay
Pros: A good value for the boombox class. Appears to be the same internals as the ZE01. Bigger case and goes deeper than the ZE01. Measured bass extension of 45Hz (-10dB).
Cons: A little rolled off up top and not that balanced through the rest of the range. Clarity isn’t as good as better speakers.
Full Zealot S95 review and specifications →
| Amplifier Power | 120W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 14.1" x 9.6" x 6.6" (358 x 243 x 167 mm) |
| Drivers | 130W subwoofer + dual drivers |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 11.3 lbs (5.11 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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- Head-to-Head Comparisons