| Name | Sony ULT Field 3 | Bose SoundLink Flex (2nd Gen) |
|---|---|---|
| Image |  |
 |
| Type | Medium | Medium |
| MSRP | $199.99 | $149 |
| Released | 2025 | 2024 |
| Availability | Available | Available |
| Check price: | Amazon | Amazon |
| Speaker configuration | ||
| Audio channels | 1.0 (mono) | 1.0 (mono) |
| Woofers (or full range): | 1× 86×46 mm | 1× full range |
| Tweeters: | 1× 20 mm | - |
| Subwoofers: | - | - |
| Audio specs & features | ||
| Watts RMS | Not specified | Not specified |
| Frequency range | Not specified | Not specified |
| Wireless stereo pairing? | ✔ TWS | ✔ TWS |
| Party mode? (mono) | ✔ (Party Connect) | ✔ (Party Mode) |
| Other (special) audio features? | Speakerphone | Speakerphone, PositionIQ (adaptive EQ) |
| Connectivity | ||
| Bluetooth version? | 5.2 | 5.3 |
| Wi-Fi? | ❌ | ❌ |
| NFC? (for pairing) | ❌ | ❌ |
| Radio? | ❌ | ❌ |
| Audio inputs & outputs | ||
| Buit-in mic? (and function) | ✔ (calls) | ✔ (calls, voice control) |
| Guitar/mic input? | ❌ | ❌ |
| USB-A playback? | ❌ | ❌ |
| 3.5 mm AUX in? | ❌ | ❌ |
| 3.5 mm AUX out? | ❌ | ❌ |
| Other in/outputs? | ❌ | ❌ |
| Battery, power & charging | ||
| Battery? | ✔ | ✔ |
| Battery life | 24 hours | 12 hours |
| Charge time | 3.5 hrs | 4 hrs |
| Battery capacity | ? | 11.4 Wh |
| Swappable battery? | ❌ | ❌ |
| Charging port(s): | USB-C | USB-C |
| Powerbank function? | Yes; 1× USB-C 7.5W | ❌ |
| Buttons & controls | ||
| Sound mode button(s)? | Bass boost | ❌ |
| Sound effect buttons? | ❌ | ❌ |
| Other (special) buttons? | ❌ | Shortcut button |
| App? | Sony Sound Connect | Bose App |
| Voice assistant? | ✔ | ✔ |
| Lights | ||
| Colored LEDS? | ❌ | ❌ |
| Strobe LEDS? | ❌ | ❌ |
| Size & weight | ||
| Size (cm H×W×D): | 11.3×25.6×7.9 | 9.04×20.14×5.23 |
| Size (inch H×W×D): | 4.45×10.08×3.11 | 3.56×7.93×2.06 |
| Weight (kg): | 1.2 | 0.586 |
| Weight (lbs): | 2.65 | 1.291 |
| Physical features | ||
| IP Code | IP67 | IP67 |
| Transportation method? | Shoulder strap | In hand |
| Color options: | 3 colors: Black, white, green | 7 colors: Black, dark blue, light blue, green, beige, yellow, pink |
| Other features? | Detachable shoulder strap | Loop |
| In the box | ||
| Charger/cables? | USB-C to USB-C | USB-A to USB-C |
| Accessories? | Shoulder strap | - |
| More info | ||
| Model number | YY7866E, SRS-ULT30 | 442591 |
| User guide / manual | Help Guide | Owner's guide |
| Official site link: | Sony.com | Bose.com |
| Check price & reviews | ||
| See price and reviews: | Amazon | Amazon |
Legend:
Great/yes
Good
Not good
Bad/no
