Short answer: the Harman Kardon Luna. It ranks #26 of 177 medium speakers by sound quality (rated 4.0/5) at $290.99 and is still sold new; the Sonos Roam ranks #95 (rated 3.1/5) and is discontinued, so it is only an option used. The Sonos Roam’s replacement, the Sonos Roam 2, is rated 3.2/5 at $179.
The Harman Kardon Luna is the better-sounding, tougher choice. A fully waterproof speaker with fairly balanced, bass rich sound, a separate tweeter, and stereo pairing with a second unit. It is rated IP67 against IPX5 for the Sonos Roam. Watch for: Boosted bass, and less detailed than higher-ranked speakers.
The Sonos Roam is the lighter choice. A small, waterproof Wi-Fi and Bluetooth speaker with wireless charging, voice control and Sonos multiroom support. At 0.9 lbs (429 g) it weighs much less than the Harman Kardon Luna at 2.5 lbs (1.13 kg). It supports AAC Bluetooth, which the Harman Kardon Luna lacks. It has an adjustable EQ, which the Harman Kardon Luna lacks. Watch for: Bass extension isn’t very good.
Buy the Harman Kardon Luna. It is rated higher for sound quality and still sold new, while the Sonos Roam is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A fully waterproof speaker with fairly balanced, bass rich sound, a separate tweeter, and stereo pairing with a second unit.
A small, waterproof Wi-Fi and Bluetooth speaker with wireless charging, voice control and Sonos multiroom support.
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Specifications Side By Side
| Harman Kardon Luna | Sonos Roam | |
|---|---|---|
| Price | $290.99 | $169.99 Discontinued |
| Ranked | #26 of 177 in Medium Size Portable Bluetooth Speakers | #95 of 177 in Medium Size Portable Bluetooth Speakers |
| App | No | Sonos S2 App |
| Aux Input | No | No |
| Bass Extension (-10dB) | 57Hz | 63Hz |
| Battery Life | 12 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| EQ | No | Yes (via app, limited in Bluetooth mode) |
| IP Rating | IP67 | IPX5 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs (1.13 kg) | 0.9 lbs (429 g) |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) | 2.4” x 6.6” x 2.4” (62 x 168 x 60 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | Dual full-range drivers + passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | - |
| Digital Aux Input | No | No |
| Maximum SPL | - | 95dB (measured by Alan Ross Reviews) |
| Wi-Fi | - | Yes |
| Built-in Microphone | - | Yes |
| Voice Assistants | - | Amazon Alexa or Google Assistant (choose one) plus Sonos Voice Control |
| Strap | - | No |
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