Short answer: the Sonos Roam, unless the speaker must float. The Ultimate Ears Wonderboom is IP67 rated and floats, but it is not stereo, has barely any bass and recessed treble. The Roam is very neutral and IP67 rated at ~1 lbs (454 g), though its bass extension isn’t very good.
Buy the Sonos Roam only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Earfun Uboom L instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Sonos Roam | Ultimate Ears Wonderboom | |
|---|---|---|
| Price | $179.99 Discontinued | $79 Discontinued |
| Ranked | #93 of 164 in Medium Size Portable Bluetooth Speakers | #109 of 164 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 63Hz | - |
| Battery Life | 10 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Maximum SPL | 95dB (measured by Alan Ross Reviews) | - |
| Stereo | No | No |
| Omnidirectional | No | Yes |
| Weight | 0.9 lbs (429 g) | 0.9 lbs (425 g) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | - |
| Dimensions | 2.4” x 6.6” x 2.4” (62 x 168 x 60 mm) | 4” x 3.7” (102 x 93.5 mm) |
| App | Sonos S2 App | No |
| Bluetooth Codecs | SBC, AAC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | No |
| Voice Assistants | Amazon Alexa or Google Assistant (choose one) plus Sonos Voice Control | - |
| EQ | Yes (via app, limited in Bluetooth mode) | No |
| Drivers | Dual full-range drivers + passive radiators | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| IP Rating | IPX5 | IPX7 |
| Digital Aux Input | No | No |
| Aux Input | No | No |
| TWS | Yes | Yes |
| Power Input | USB-C | Micro USB |
| Strap | No | Yes (built-in loop) |
| Party Mode | - | No |
Related Speaker Comparisons
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- B&O Beosound A1 2nd gen vs Sonos Roam
- JBL Charge 6 vs Sonos Roam
Prices on this page were last checked October 4, 2026 at 9:58 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
Sonos Roam: $179.99 Discontinued Amazon eBay
Newer model: the Sonos Roam 2, ranked higher, rated 3.2/5.
Pros: Very neutral. IP67 rated at ~1 lb. Wireless (Qi) charging: rare for a portable speaker. Works with Alexa/Sonos Voice Control and the wider Sonos ecosystem over Wi-Fi. Measured bass extension of 63Hz (-10dB).
Cons: Bass extension isn’t very good. Not stereo. Gets distorted if you turn up the bass. Discontinued.
Full Sonos Roam review and specifications →
| App | Sonos S2 App |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 2.4” x 6.6” x 2.4” (62 x 168 x 60 mm) |
| Drivers | Dual full-range drivers + passive radiators |
| EQ | Yes (via app, limited in Bluetooth mode) |
| IP Rating | IPX5 |
| Maximum SPL | 95dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| Voice Assistants | Amazon Alexa or Google Assistant (choose one) plus Sonos Voice Control |
| Weight | 0.9 lbs (429 g) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Wonderboom: $79 Discontinued eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated and floats. Compact, light, and simple to use.
Cons: Not stereo, barely any bass, recessed treble. Dip at 9kHz. Low mid bass distortion. Not technically a 360 speaker, only front and rear. Discontinued.
Full Ultimate Ears Wonderboom review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4” x 3.7” (102 x 93.5 mm) |
| Drivers | 2x 1.6” active drivers + 2x 1.8” x 2.6” passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (425 g) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
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