These sit in different size classes, so this is not a straight ranking comparison. The Sony ULT Field 5 ranks #55 of 105 large speakers by sound quality at $348; the Soundcore Boom 2 Pro ranks #38 of 98 boombox speakers by sound quality at $139.99.
The case for the Sony ULT Field 5: A tough 7.3 lbs (3.3 kg) 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. It supports LDAC Bluetooth, which the Soundcore Boom 2 Pro lacks. Watch for: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.
What the Soundcore Boom 2 Pro does well: A tougher version of the Soundcore Boom 2 Plus with IP68 dust and water protection instead of IPX7, a metal front grille, and a body that floats. The tradeoff: No side-by-side sound comparisons yet, so its rating is estimated from the Soundcore Boom 2 Plus, which shares its drivers and amplifier.
Buy the Sony ULT Field 5 at $348 for a large speaker, or the Soundcore Boom 2 Pro at $139.99 for a boombox speaker instead.
Worth knowing: the Soundcore Boom 2 Pro has not been measured yet. Its rating is estimated from related models, with a likely range of 3.4 to 3.8, so treat this verdict as provisional.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 5 | Soundcore Boom 2 Pro | |
|---|---|---|
| Price | $348.00 | $139.99 |
| Ranked | #55 of 105 in Large Size Portable Bluetooth Speakers | #38 of 98 in Boombox Size Portable Bluetooth Speakers Estimated |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 25 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC |
| Bluetooth Version | 5.3 | 5.3 |
| Built-in Microphone | Yes | - |
| Dimensions | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) | 17.4” x 9” x 5.9” (442 x 228 x 151 mm) |
| Drivers | 2x 46mm tweeters + 1x 79mm x 107mm woofer | 2x 111mm woofers + 2x 19mm tweeters + passive radiators |
| EQ | Yes (App + ULT button) | Yes (9 band custom EQ + presets) |
| IP Rating | IP67 | IP68 |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (PartyCast 2.0) |
| Power Bank | Yes (USB-C) | Yes (USB-C, 10W) |
| Power Input | USB-C | USB-C (30W fast charging, 3 hours) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.3 lbs (3.3 kg) | 8.4 lbs (3.8 kg) |
| Amplifier Power | 27W | 140W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
| Frequency Response | - | 40Hz - 20kHz (Manufacturer specified) |
| Lights | - | Yes |
Related Speaker Comparisons
More top alternatives to Soundcore Boom 2 Pro:
- Soundcore Boom 2 Pro vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs Soundcore Boom 2 Pro
- JBL Boombox 4 vs Soundcore Boom 2 Pro
- JBL Boombox 3 vs Soundcore Boom 2 Pro
- Soundcore Boom 2 Pro vs Tribit Stormbox Blast 2
Prices on this page were last checked October 11, 2026 at 4:59 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
Sony ULT Field 5: $348.00 Amazon $348.00 eBay
Older models: the Sony SRS-XB43 (ranked lower, rated 3.5/5) and the Sony SRS-XG300 (ranked lower, rated 3.1/5). See every Sony XB and ULT generation.
Same family: the Sony ULT Field 1 (smaller model, rated 3.1/5), the Sony ULT Field 7 (smaller model, rated 3.2/5), the Sony ULT Tower 10 (smaller model, rated 3.9/5), the Sony ULT Field 3 (smaller model, rated 3.4/5), the Sony ULT Tower 5 (larger model, rated 4.5/5), the Sony ULT Tower 7 (larger model, rated 4.7/5), the Sony ULT Tower 9 (larger model, rated 4.2/5) and the Sony ULT Tower Max (larger model, rated 4.8/5).
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 →
| Released | Apr 2025 (1 year ago) |
|---|---|
| Amplifier Power | 27W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 |
| Strap | Yes (detachable shoulder strap) |
| 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 →
- Mateusz Cholewa: SONY ULT Field 5 vs BOGASING S8 PRO MAX More from Mateusz Cholewa →
- Mateusz Cholewa: MARSHALL Kilburn 3 vs SONY ULT Field 5
- Head-to-Head Comparisons
Soundcore Boom 2 Pro: $139.99 Estimated Woot $139.99 Lowest Walmart $197.00 Best Buy $249.99 eBay
Pros: A tougher version of the Soundcore Boom 2 Plus with IP68 dust and water protection instead of IPX7, a metal front grille, and a body that floats. Inside it is the same 140W design with two woofers and two tweeters for real stereo, plenty of bass with BassUp, a 9 band app EQ, aux input, a detachable shoulder strap, a 10W USB-C power bank and PartyCast for linking more speakers.
Cons: No side-by-side sound comparisons yet, so its rating is estimated from the Soundcore Boom 2 Plus, which shares its drivers and amplifier. That means the same warm stock tuning with upper bass boost and a dip from the upper mids into the treble that dulls vocals, and owners say it needs EQ. Reviewers found it loses fullness and gets a bit fatiguing at its very highest volume.
Full Soundcore Boom 2 Pro review and specifications →
| Released | Mar 2025 (1 year ago) |
|---|---|
| Amplifier Power | 140W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 17.4” x 9” x 5.9” (442 x 228 x 151 mm) |
| Drivers | 2x 111mm woofers + 2x 19mm tweeters + passive radiators |
| EQ | Yes (9 band custom EQ + presets) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP68 |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast 2.0) |
| Power Bank | Yes (USB-C, 10W) |
| Power Input | USB-C (30W fast charging, 3 hours) |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 8.4 lbs (3.8 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Boom 2 Pro vs Soundcore Boom 2 Plus
- Soundcore Boom 2 Pro vs Tribit Stormbox Blast 2
- Soundcore Boom 2 Pro vs JBL Boombox 3
- Soundcore Boom 2 Pro vs JBL Boombox 4
- Soundcore Boom 2 Pro vs Harman Kardon Go + Play 3
- Soundcore Boom 2 Pro vs Tribit Stormbox Blast
- Soundcore Boom 2 Pro vs JBL Xtreme 3
- Soundcore Boom 2 Pro vs Ultimate Ears Epicboom
- See all 11 comparisons