Short answer: the Zealot PT21 for deeper bass, the Samsung MX-ST50B for a more balanced sound. The Samsung is reasonably balanced but its bass is not as deep as a Partybox 110 or other higher ranked speakers. The PT21 gives up balance for quite deep bass from dual 166mm woofers plus a bundled wireless mic with echo, though its app EQ support is incomplete.
Buy the Zealot PT21. It is rated higher for sound quality, and the Samsung MX-ST50B is discontinued, so it is only available used.
If battery life is a priority, the Zealot PT21 is rated for 60 hours versus 18 hours for the Samsung MX-ST50B.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Zealot PT21 | Samsung MX-ST50B | |
|---|---|---|
| Price | $225.86 | $300 Discontinued |
| Ranked | #12 of 43 in Party Size Portable Bluetooth Speakers | #24 of 43 in Party Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) | 13” x 26.2” x 11.9” (329 x 665 x 301 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | 2x 6.5” woofers, 2x 2.5” tweeters |
| EQ | Yes (Bass, Voice, Standard modes) | Yes |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IPX5 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| MicroSD Playback | Yes | - |
| Amplifier Power | 200W | 240W (AC) / 90W (battery) |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Samsung Group Play up to 10 speakers) |
| Power Bank | Yes (USB-A) | Yes |
| Power Input | Type-C | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 20.7 lbs (9.4 kg) | 26.2 lbs (11.9 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | aptX, AAC, SBC |
| Lights | Yes | Yes |
| Battery Life | 60 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| Strap | - | No |
Related Speaker Comparisons
More top alternatives to Zealot PT21:
- Sony ULT Tower 7 vs Zealot PT21
- Zealot PT21 vs JBL Partybox 330
- JBL Partybox Stage 320 vs Zealot PT21
- JBL Partybox 310 vs Zealot PT21
- Sony ULT Tower 5 vs Zealot PT21
Prices on this page were last checked October 2, 2026 at 10:18 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Zealot PT21: $225.86 AliExpress eBay
Pros: Dual 166mm woofers and 200W output in a lighter, more compact body than the ZE41, with a bundled wireless microphone and echo effect built in for karaoke. Quite deep bass for the price, even deeper than the JBL Boombox 4 in direct comparisons.
Cons: Unlike some other Zealot models, app-based EQ customization doesn’t appear to be fully supported yet, and IPX5 means it can handle splashes but not submersion.
Full Zealot PT21 review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) |
| Battery Life | 60 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers |
| EQ | Yes (Bass, Voice, Standard modes) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| Lights | Yes |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | Type-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 20.7 lbs (9.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Zealot PT21 Vs Jbl Boombox 4!!! 😁😁😁 More from Jagistreviews →
- Techder Audios: Zealot PT21 - Soundtest "BUDGET PARTYBOX WITH BASS ?" More from techderaudios →
- Jagist reviews: Zealot PT21 Vs Zealot Ze21!!! 🥰😍🥰
- Jagist reviews: Zealot PT21 Unboxing And Review!!! 😈😈😈
- Techder Audios: Zealot PT21 VS Yeahbox Sonic Boom Ultra "BASS VS QUALITY BASS!?"
- Jagist reviews: Zealot Ze41 Vs Zealot PT21!!! BATTLE OF THE BROTHERS!!! 😝😝😝
- Jagist reviews: Zealot PT21 Vs Yeahbox Sonic Boom Max3!!! 💥💥💥
- Jagist reviews: Zealot PT21 Vs Zealot S89!!! 😈😈😈
- Jagist reviews: Zealot PT21 Vs LG xboom Stage301!!! 🫣🫣🫣
- Jagist reviews: Zealot PT21 Slim Back Rattle Fix!!!😇😇😇
- Head-to-Head Comparisons
Samsung MX-ST50B: $300 Discontinued Amazon eBay
Pros: A 240W sound tower with two 6.5-inch woofers and two tweeters, IPX5 protection, app EQ, aux and USB playback, karaoke input and Samsung Group Play for linking up to 10 speakers. Hands-on reviews find it capable of clear, punchy sound and impressive output for indoor parties, while its 18-hour claimed battery supports more casual use away from mains power.
Cons: Output drops sharply to 90W on battery, so it needs mains power for its full impact. Bass is not as deep as stronger dedicated party speakers, and at 11.9kg its tall enclosure is less convenient to carry. It lacks TWS stereo pairing, so the Group Play feature favors shared party coverage rather than a conventional stereo image. Discontinued.
Full Samsung MX-ST50B review and specifications →
| Amplifier Power | 240W (AC) / 90W (battery) |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX, AAC, SBC |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 13” x 26.2” x 11.9” (329 x 665 x 301 mm) |
| Drivers | 2x 6.5” woofers, 2x 2.5” tweeters |
| EQ | Yes |
| IP Rating | IPX5 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Samsung Group Play up to 10 speakers) |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | Yes |
| Weight | 26.2 lbs (11.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Samsung MX-ST50B vs Klipsch Gig XXL
- Samsung MX-ST50B vs LG XL7
- Samsung MX-ST50B vs Ultimate Ears Hyperboom
- Samsung MX-ST50B vs Soundboks Mix
- Samsung MX-ST50B vs W-King T12
- Samsung MX-ST50B vs Soundcore Rave 3S
- Samsung MX-ST50B vs W-King T9 Pro
- Samsung MX-ST50B vs Onn Large Party gen 2
- See all 28 comparisons