Short answer: the B&O Beolit 20 on measured sound quality, the Sony ULT Field 7 on price. The B&O Beolit 20 ranks #33 of 75 boombox speakers at $599.99. The Sony ULT Field 7 ranks #42 at $400, $199.99 cheaper.
The case for the B&O Beolit 20: Wireless phone charging. The tradeoff: Warm sound.
What the Sony ULT Field 7 gets right: Better sounding than the XG500. The catch: Still not as deep bass as the top ranked speakers.
Buy the B&O Beolit 20 if sound quality is the priority over the price, or the Sony ULT Field 7 if the price is the priority over sound quality.
Battery life favors the Sony ULT Field 7: rated for 30 hours against 8 hours for the B&O Beolit 20.
If water resistance matters to you, the Sony ULT Field 7 at IP67 (brief submersion) holds up far better than the B&O Beolit 20 at IPX4 (splashing).
Specifications Side By Side
| B&O Beolit 20 | Sony ULT Field 7 | |
|---|---|---|
| Price | $599.99 | $400 |
| Ranked | #33 of 75 in Boombox Size Portable Bluetooth Speakers | #42 of 75 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (Bang & Olufsen app) | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 45Hz | ~52Hz |
| Battery Life | 8 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| EQ | Yes (App EQ) | Yes (App + ULT button) |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | Yes | Yes |
| Weight | 6 lbs / 2.7 kg | 13.9 lbs / 6.3 kg |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/1.5A) |
| USB Playback | No | Yes |
| Built in Microphone | Yes | Yes |
| Power Input | USB-C | AC Power cord |
| Output Power | 240W peak | 100W |
| Dimensions | 5.3" x 9.1" x 7.4" (135 x 230 x 189 mm) | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| IP Rating | IPX4 | IP67 |
| Max Volume | 93dB | - |
| Digital Aux Input | No | No |
| Guitar Input | - | Yes |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Bluetooth Version | - | 5.2 |
Related Speaker Comparisons
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Prices on this page were last checked September 9, 2026 at 6:54 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
B&O Beolit 20: $599.99 Amazon eBay
Pros: B&O Beolit 20 uses 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators. Its 2.7 kg, claimed 8 hours (Manufacturer specified) battery life, IPX4 protection, aux input, up to 93dB and mono playback make it a practical option for its intended room or portable use.
Cons: Bass is limited by its 45Hz specification.
Full B&O Beolit 20 review and specifications →
| App | Yes (Bang & Olufsen app) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 45Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5.3" x 9.1" x 7.4" (135 x 230 x 189 mm) |
| Drivers | 2x 30mm tweeters + 2x 40mm mid-range + 1x 60mm woofer + dual passive radiators |
| EQ | Yes (App EQ) |
| IP Rating | IPX4 |
| Max Volume | 93dB |
| Omnidirectional | Yes |
| Output Power | 240W peak |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 6 lbs / 2.7 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: B&O Beolit 20 vs Earfun UBoom X - everything fake? More from Oluv’Sone →
- Joy & Oluv’Sone: $600 premium Bluetooth speaker vs $115 cheapo UBoom X
- techkiste.net: B&O Beolit 20 vs Vifa Copenhagen 2.0 sound-comparison with different music-genres
- Oluv Patreon: B&O Beolit 20 - frequency response measurements
- Head-to-Head Comparisons
- B&O Beolit 20 vs JBL Authentics 300
- B&O Beolit 20 vs JBL Boombox 2
- B&O Beolit 20 vs Teufel Boomster 2021
- B&O Beolit 20 vs Soundcore Boom 2 Plus
- B&O Beolit 20 vs Zealot ZE01
- B&O Beolit 20 vs Teufel Boomster NG (2017)
- B&O Beolit 20 vs Zealot S95
- B&O Beolit 20 vs LG Xboom Stage 301
- See all 27 comparisons
Sony ULT Field 7: $400 Amazon eBay
Pros: Sony ULT Field 7 uses 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9”) tweeters. Its 6.3 kg, claimed 30 hours (Manufacturer specified) battery life, IP67 protection, aux input and stereo playback make it a practical option for its intended room or portable use.
Cons: Bass is limited by its ~52Hz specification. There is no companion app.
Full Sony ULT Field 7 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~52Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 20.2" x 8.8" x 8.7" (512 x 224 x 222 mm) |
| Drivers | 2x 114mm x 114mm X-Balanced woofers + 2x 46mm (1.9") tweeters |
| EQ | Yes (App + ULT button) |
| Guitar Input | Yes |
| IP Rating | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 100W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/1.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.9 lbs / 6.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 7 vs Skullcandy Barrel
- Sony ULT Field 7 vs Soundcore Rave Party 2
- Sony ULT Field 7 vs Teufel Boomster NG (2017)
- Sony ULT Field 7 vs JBL Partybox On the Go
- Sony ULT Field 7 vs Sony SRS-XG500
- Sony ULT Field 7 vs W-King T11
- Sony ULT Field 7 vs JBL Boombox
- Sony ULT Field 7 vs Soundcore Motion Boom+
- See all 49 comparisons