These are not really the same size class, and that is the honest framing here. The B&O Beosound Level ranks #89 of 117 large speakers by sound quality at $2,250; the Sonos Era 300 ranks #6 of 10 powered desktop speakers by sound quality at $499.
The B&O Beosound Level is the battery-powered, tougher option. A sculptural luxury speaker that works on battery or mains, mounts on a wall, and streams over Wi-Fi with upgradeable modules. Its battery is rated for 16 hours, while the Sonos Era 300 needs an outlet. It is rated IP54, while the Sonos Era 300 has no water resistance. It keeps a wired aux input, which the Sonos Era 300 lacks. Watch for: Not very deep bass, peaks in midrange.
Why pick the Sonos Era 300: A Wi-Fi smart speaker with real stereo and Dolby Atmos spatial audio, excellent Alexa voice pickup and Trueplay room tuning. It links with other speakers (Sonos multi-room, AirPlay 2), which the B&O Beosound Level cannot. It has an adjustable EQ, which the B&O Beosound Level lacks. The catch: RTINGS’ one listed con is some compression at max volume.
Buy the B&O Beosound Level ($2,250) for a large speaker; the Sonos Era 300 ($499) suits a powered desktop speaker instead.
Still deciding? The full Portable Bluetooth rankings and Powered Home rankings cover every ranked option.
A sculptural luxury speaker that works on battery or mains, mounts on a wall, and streams over Wi-Fi with upgradeable modules.
A Wi-Fi smart speaker with real stereo and Dolby Atmos spatial audio, excellent Alexa voice pickup and Trueplay room tuning.
Prices on this page were last checked November 5, 2026 at 10:30 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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Specifications Side By Side
| B&O Beosound Level | Sonos Era 300 | |
|---|---|---|
| Price | $2,250.00 | $499.00 each |
| Ranked | #89 of 117 in Large Size Portable Bluetooth Speakers | #6 of 10 in Large Size Powered Desktop Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | ~60Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | No Battery |
| Weight | 7.3 lbs (3.3 kg) | 9.9 lbs (4.47 kg) |
| Wi-Fi | Yes | Yes (Wi-Fi 6) |
| App | No | Yes (Sonos S2) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes (far-field, mic mute button) |
| Voice Assistants | Google Assistant | Amazon Alexa |
| EQ | No | Yes (Bass/Treble + Trueplay room correction) |
| IP Rating | IP54 | None |
| Party Mode | No | Yes (Sonos multi-room, AirPlay 2) |
| Power Bank | No | No |
| Power Input | USB-C | External AC adapter |
| Stereo | Yes | Yes |
| Omnidirectional | No | - |
| TWS | Yes | Yes (stereo pairing via Sonos app) |
| Bluetooth Version | 5.0 | 5.0 |
| Drivers | 2x 102mm woofers, 1x 51mm fullrange, 2x 20mm tweeters | 4x tweeters (1 forward, 2 side, 1 upward-firing), 2x angled woofers |
| Dimensions | 13.7” x 9.1” x 2.2” (348 x 230 x 56 mm) | 7.3” x 10.2” x 6.3” (185 x 260 x 160 mm) |
| Frequency Response | 39Hz - 23kHz (Manufacturer specified) | - |
| Amplifier Power | 105W | - |
| Maximum SPL | 96dB (Manufacturer specified) | - |
| Digital Aux Input | No | - |
| Inputs | - | Wi-Fi, Bluetooth, USB-C (line-in adapter sold separately) |
| XLR Input | - | No |
| RCA Input | - | No |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | Yes (line-in adapter sold separately) |
| HDMI Input | - | No |
| AES Input | - | No |
| Streaming Services | - | Sonos app streaming (Spotify, Apple Music, Amazon Music and more), AirPlay 2, Dolby Atmos Music |
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