Short answer: the Sonos Roam 2. It ranks #92 of 164 medium speakers by sound quality, rated 3.2/5, at $179. The Ultimate Ears Boom 3 ranks #111, rated 2.9/5, at $134.99, $44.01 cheaper, not enough of a saving to outweigh the sound-quality gap.
Buy the Sonos Roam 2. It is rated higher for sound quality, and the $44.01 saving on the Ultimate Ears Boom 3 is not enough to make up the difference.
If battery life is a priority, the Ultimate Ears Boom 3 is rated for 15 hours versus 10 hours for the Sonos Roam 2.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sonos Roam 2 | Ultimate Ears Boom 3 | |
|---|---|---|
| Price | $179.00 | $134.99 |
| Ranked | #92 of 164 in Medium Size Portable Bluetooth Speakers | #111 of 164 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 63Hz | 91Hz |
| Battery Life | 10 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Stereo | No | Yes |
| Omnidirectional | No | Yes |
| Weight | 0.9 lbs (429 g) | 1.3 lbs (608 g) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 4.2 |
| Dimensions | 2.4” x 6.6” x 2.4” (62 x 168 x 60 mm) | 7.2” x 2.9” (184 x 73 mm) |
| App | Sonos S2 App | Yes (Ultimate Ears BOOM & MEGABOOM app) |
| Bluetooth Codecs | SBC, AAC | SBC |
| Built-in Microphone | Yes | No |
| Voice Assistants | Amazon Alexa (Sonos Voice Control also built in) | - |
| EQ | Yes (via app, limited in Bluetooth mode) | Yes (via app) |
| Drivers | 1x ~45mm racetrack mid-woofer + 1x tweeter + 2x passive radiators | 2x 2” active drivers + 2x 2” x 4” passive radiators |
| IP Rating | IPX5 | IP67 |
| Maximum SPL | 95dB (Manufacturer specified) | 87dB (Manufacturer specified) |
| 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 | - | Yes (PartyUp up to 50 speakers) |
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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 2: $179.00 Amazon eBay
Older model: the Sonos Roam (ranked lower, rated 3.1/5).
Pros: Very neutral. Additional button for pairing instead of being shared with power button. Measured bass extension of 63Hz (-10dB).
Cons: Exact same sound quality as the original Roam. Bass extension isn’t very good. Not stereo. Gets distorted as you turn up the bass.
Full Sonos Roam 2 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 | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 2.4” x 6.6” x 2.4” (62 x 168 x 60 mm) |
| Drivers | 1x ~45mm racetrack mid-woofer + 1x tweeter + 2x passive radiators |
| EQ | Yes (via app, limited in Bluetooth mode) |
| IP Rating | IPX5 |
| Maximum SPL | 95dB (Manufacturer specified) |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| Voice Assistants | Amazon Alexa (Sonos Voice Control also built in) |
| Weight | 0.9 lbs (429 g) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Boom 3: $134.99 Amazon eBay
Newer model: the Ultimate Ears Boom 4, ranked higher, rated 2.9/5.
Pros: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp. Measured bass extension of 91Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Boom 3 review and specifications →
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 91Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (608 g) |
- Links
- 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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