Short answer: the Minirig 3 with subwoofer for a balanced sound, the Sony ULT Field 5 for weatherproofing. The Minirig is very balanced but not stereo, its app is buggy, and it costs $62 more. The Sony is IP67 rated, dustproof and water resistant, but its bass is shallower than others in the class and the sound is just okay.
The case for the Minirig mk3 with subwoofer: Very balanced sound. Set against that: Not stereo, app is buggy.
What the Sony ULT Field 5 gets right: IP67 rated, dustproof and water resistant. Set against that: Bass not as deep as others in the category, and sound quality overall is just okay.
Buy the Minirig 3 with subwoofer. It is rated higher for sound quality, and saving $62 with the Sony ULT Field 5 does not make up for the sound-quality gap.
Water resistance is not close: the Sony ULT Field 5 is rated at IP67 (brief submersion), well ahead of the Minirig 3 with subwoofer at Splash resistant (splashing).
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Minirig 3 with subwoofer | Sony ULT Field 5 | |
|---|---|---|
| Price | $260 | $198 |
| Ranked | #6 of 78 in Large Size Portable Bluetooth Speakers | #41 of 78 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Aux Latency | 1ms | - |
| Bass Extension (-10dB) | 47Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| EQ | Yes | Yes (App + ULT button) |
| IP Rating | Splash resistant | IP67 |
| Bluetooth Latency | 60ms | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | - |
| Power Bank | No | Yes (USB-C) |
| Power Input | Proprietary USB cable | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| TWS | Yes (Bluetooth or cable) | Yes |
| Weight | 3.1 lbs (1.42 kg) | 7.3 lbs (3.3 kg) |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Built-in Microphone | Yes | Yes |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 4" x 2.9" (101.6 x 73 mm) (diameter x height) | 12.6" x 5.7" x 4.9" (320 x 144 x 125 mm) |
| Drivers | 70mm custom driver | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | 27W |
| Digital Aux Input | No | No |
Related Speaker Comparisons
How Minirig 3 with subwoofer compares with other leading options:
- JBL Xtreme 5 vs Minirig 3 with subwoofer
- Brane X vs Minirig 3 with subwoofer
- Minirig 3 with subwoofer vs Minirig 4 with subwoofer
- Minirig 2 with subwoofer vs Minirig 3 with subwoofer
- Minirig 3 with subwoofer vs Vifa Oslo
Prices on this page were last checked September 23, 2026 at 11:24 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 with subwoofer: $260 Minirigs eBay
Pros: Very balanced sound. Measured bass extension of 47Hz (-10dB).
Cons: Not stereo, app is buggy. Wireless TWS pairing is buggy. Not easy to carry on the go, no handle and there’s 2 pieces. Calls itself splash resistant but has no official water rating. A bit expensive. Has reliability issues more often than any other speaker
Full Minirig 3 with subwoofer review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Aux Latency | 1ms |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 60ms |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| 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 | 103dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | Proprietary USB cable |
| Stereo | No |
| TWS | Yes (Bluetooth or cable) |
| Weight | 3.1 lbs (1.42 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Tribit Stormbox Blast or two Motion Boom Pluses for best cheap boombox? More from alanrossreviews →
- Alan Ross Reviews: Minirig mk3 sub vs mk2 subwoofer - full sound test, 1.1, 2.1, 2.2
- Alan Ross Reviews: Soundcore Motion Boom vs JBL Xtreme 3 LG PN7 & Minirig mk3 💯👍
- Alan Ross Reviews: Minirig mk3 2.2 (2x subwoofers) vs 2x Soundcore Motion Booms 🤑
- Alan Ross Reviews: Minirig 4 vs Minirig 3, stuff they tell you, stuff they don’t! 😂
- Head-to-Head Comparisons
- Minirig 3 with subwoofer vs Minirig 2 with subwoofer
- Minirig 3 with subwoofer vs Minirig 4 with subwoofer
- Minirig 3 with subwoofer vs Brane X
- Minirig 3 with subwoofer vs Vifa Oslo
- Minirig 3 with subwoofer vs JBL Xtreme 5
- Minirig 3 with subwoofer vs Dali Katch G2
- Minirig 3 with subwoofer vs JBL Charge 5 Wifi
- Minirig 3 with subwoofer vs Harman Kardon Luna 2
Sony ULT Field 5: $198 Amazon eBay
Pros: A tough 3.3kg portable with IP67 protection, LDAC/AAC support, aux input, a 10-band app EQ, Party Connect, USB-C power-bank output and a claimed 25-hour battery. Reviews find it energetic and dynamic with substantial bass, enough volume for a yard, and two ULT modes that let bass-focused listeners choose a deeper or punchier presentation.
Cons: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth. Deep bass is less authoritative than the enclosure suggests, and the loud confirmation tone when pressing the ULT button is an unnecessary annoyance. Use the app EQ and audition it before buying for detail-focused music.
Full Sony ULT Field 5 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6" x 5.7" x 4.9" (320 x 144 x 125 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 7.3 lbs (3.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Don’t TOUCH that ULT Button! Sony ULT Field 5 Review More from DannyPops →
- Mark Ellis Reviews: Sony just changed summer sound 🤨 | Sony ULT Field 5 & 3 Review
- Dominik Reviews: Sony ULT Field 5 vs JBL Xtreme 4 - Outdoor Sound Test - Sony shines or not? More from Dominik Reviews →
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test More from Oluv’Sone →
- Head-to-Head Comparisons