Short answer: the Sonos Roam. It ranks #75 of 142 medium speakers by sound quality at $179.99; 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 offers: 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. Watch for: Bass extension isn’t very good. Not stereo. Gets distorted if you turn up the bass.
Buy the Sonos Roam. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, which settles it without a real tradeoff to make.
Skip the Ultimate Ears Megaboom 4 if sound quality matters to you. It ranks near the bottom of the 142 medium speakers.
There is a real battery-life gap here: the Ultimate Ears Megaboom 4 is rated for 20 hours, the Sonos Roam only 10 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Megaboom 4 | Sonos Roam | |
|---|---|---|
| Price | $200 | $179.99 |
| Ranked | #137 of 142 in Medium Size Portable Bluetooth Speakers | #75 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 | 5.0 |
| 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 | Dual full-range drivers + 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 (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC, AAC |
| Bass Extension (-10dB) | - | 63Hz |
| Wi-Fi | - | Yes |
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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) |
- Links
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Sonos Roam: $179.99 Amazon eBay
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.
Full Sonos Roam review and specifications →
| App | Sonos S2 App |
|---|---|
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 10 hours (Manufacturer specified) |
| 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 |
| Stereo | No |
| Weight | 0.9 lbs (429 g) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons