Short answer: the Sonos Roam 2. It ranks #74 of 142 medium speakers by sound quality at $179; the Ultimate Ears Megaboom 4 ranks #137 and costs $200, so there is little reason to consider the other one.
What the Ultimate Ears Megaboom 4 offers: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together. Watch for: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
What the Sonos Roam 2 offers: Very neutral. Additional button for pairing instead of being shared with power button Watch for: Exact same sound quality as the original Roam. Bass extension isn’t very good. Not stereo. Gets distorted as you turn up the bass.
Buy the Sonos Roam 2. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, so the other one has nothing left to offer.
The Ultimate Ears Megaboom 4 is not a sound-quality pick. It sits near the bottom of the 142 medium speakers; there are better options higher up.
Battery life favors the Ultimate Ears Megaboom 4: rated for 20 hours against 10 hours for the Sonos Roam 2.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Megaboom 4 | Sonos Roam 2 | |
|---|---|---|
| Price | $200 | $179.00 |
| Ranked | #137 of 142 in Medium Size Portable Bluetooth Speakers | #74 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Sonos S2 App |
| Battery Life | 20 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Stereo | No | No |
| Omnidirectional | Yes | No |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) | 2.4" x 6.6" x 2.4" (62 x 168 x 60 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators | 1x ~45mm racetrack mid-woofer + 1x tweeter + 2x passive radiators |
| TWS | Yes | - |
| EQ | Yes (via app) | Yes (via app, limited in Bluetooth mode) |
| Power Input | USB-C | - |
| Built-in Microphone | No | Yes |
| Weight | 2.4 lbs (1.1 kg) | 0.9 lbs (429 g) |
| Maximum SPL | 91dB (Manufacturer specified) | 95dB (Manufacturer specified) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| Bass Extension (-10dB) | - | 63Hz |
| Wi-Fi | - | Yes |
Related Speaker Comparisons
More top alternatives to Sonos Roam 2:
- Earfun Uboom L vs Sonos Roam 2
- Soundcore Motion 300 vs Sonos Roam 2
- Sonos Roam 2 vs Soundcore Boost “upgraded” 2021
- Minirig 4 vs Sonos Roam 2
- B&O Beosound A1 2nd gen vs Sonos Roam 2
Prices on this page were last checked September 16, 2026 at 12:41 AM 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
Ultimate Ears Megaboom 4: $200 Amazon eBay
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| App | Yes |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4" x 3.4" x 8.9" (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
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Sonos Roam 2: $179.00 Amazon eBay
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 |
|---|---|
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| 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 |
| Stereo | No |
| Weight | 0.9 lbs (429 g) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons