Short answer: the Ultimate Ears Boom 3, if you are buying new. The Minirig 3 ranks higher than it (#8 vs #111 of 164 medium speakers, 4.3/5 vs 2.9/5) but is discontinued, so only consider it used; the Ultimate Ears Boom 3 is still sold new at $134.99.
The Minirig 3 is the better-sounding, deeper-bass pick. Modular, can easily attach a subwoofer. Its bass reaches about 53Hz before falling 10dB, against 91Hz for the Ultimate Ears Boom 3. It is rated for 30 hours of battery against 15 for the Ultimate Ears Boom 3. It supports aptX Bluetooth, which the Ultimate Ears Boom 3 lacks. Watch for: Calls itself splash resistant and has no official water rating.
The Ultimate Ears Boom 3 is the tougher pick. Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp. It is rated IP67 against Splash resistant for the Minirig 3. It plays in stereo from a single unit, unlike the Minirig 3. The catch: Not stereo, barely any bass, recessed treble.
Buy the Ultimate Ears Boom 3, since the Minirig 3 is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Minirig 3 | Ultimate Ears Boom 3 | |
|---|---|---|
| Price | $140 Discontinued | $134.99 |
| Ranked | #8 of 164 in Medium Size Portable Bluetooth Speakers | #111 of 164 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Ultimate Ears BOOM & MEGABOOM app) |
| Aux Input | Yes | No |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 53Hz | 91Hz |
| Battery Life | 30 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, AAC, SBC | SBC |
| Built-in Microphone | No | No |
| EQ | Yes | Yes (via app) |
| IP Rating | Splash resistant | IP67 |
| Bluetooth Latency | 60ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 87dB (Manufacturer specified) |
| Power Bank | No | - |
| Power Input | Proprietary USB cable | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | Yes |
| TWS | Yes (Bluetooth or cable) | Yes |
| Weight | 1.2 lbs (550 g) | 1.3 lbs (608 g) |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 4” x 2.9” (101.6 x 73 mm) (diameter x height) | 7.2” x 2.9” (184 x 73 mm) |
| Drivers | 70mm custom driver | 2x 2” active drivers + 2x 2” x 4” passive radiators |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | - |
| Digital Aux Input | No | No |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
How Minirig 3 compares with other leading options:
- Earfun Uboom L vs Minirig 3
- Soundcore Motion 300 vs Minirig 3
- Denon Envaya DSB-250BT vs Minirig 3
- Minirig 3 vs Minirig 4
- Minirig 2 vs Minirig 3
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
Minirig 3: $140 Discontinued eBay
Newer model: the Minirig 4, ranked higher, rated 4.3/5.
Pros: Modular, can easily attach a subwoofer. Measured bass extension of 53Hz (-10dB).
Cons: Not stereo. Calls itself splash resistant and has no official water rating. App is buggy. Wireless TWS pairing is buggy. A bit expensive. Has reliability issues more often than any other speaker. Discontinued; Minirig now sells only the Minirig 4, and the old product page redirects to it.
Full Minirig 3 review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 0ms |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX, AAC, SBC |
| Bluetooth Latency | 60ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4” x 2.9” (101.6 x 73 mm) (diameter x height) |
| Drivers | 70mm custom driver |
| EQ | Yes |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) |
| IP Rating | Splash resistant |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Power Bank | No |
| Power Input | Proprietary USB cable |
| Stereo | No |
| TWS | Yes (Bluetooth or cable) |
| Weight | 1.2 lbs (550 g) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: B&O Beoplay A1 2nd gen vs Minirig mk3 bluetooth speaker More from alanrossreviews →
- Alan Ross Reviews: minirig 3 vs minirig 2 - minirig 3 overview part 1
- Speakertech: Anker soundcore Boost (Upgraded) vs minirig mini in stereo /2.0 (and changing the equalizer)
- Alan Ross Reviews: Minirig 4 vs Minirig 3, stuff they tell you, stuff they don’t! 😂
- Beautiful Zar DJ: MINIRIG 4 Vs MINIRIG 3 (50-100%Volume Audio Test)
- James from Canada: SOUND TESTS - Soundboks, Minirig 3, dB Technologies, Bose S1 Pro, etc - RAVE TEST
- Head-to-Head Comparisons
Ultimate Ears Boom 3: $134.99 Amazon eBay
Newer model: the Ultimate Ears Boom 4, ranked higher, rated 2.9/5.
Pros: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp. Measured bass extension of 91Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Boom 3 review and specifications →
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 91Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (608 g) |
- Links
- 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.
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