Short answer: the Sonos Play if sound quality matters most, the Ultimate Ears Wonderboom 4 if price matters most. The Sonos Play ranks #56 of 177 medium speakers, rated 3.5/5, at $299. The Ultimate Ears Wonderboom 4 ranks #108, rated 2.9/5, at $64.99, $234.01 cheaper.
The Ultimate Ears Wonderboom 4 is the lighter option. A small, tough waterproof speaker with a strap loop and USB-C charging, easy to clip on a bag for outdoor trips. At 0.9 lbs (420 g) it weighs much less than the Sonos Play at 2.9 lbs (1.3 kg). The catch: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
The Sonos Play is the better-sounding, longer-running choice. A Wi-Fi and Bluetooth portable with wide stereo sound, a long lasting swappable battery, waterproofing and full Sonos multiroom support. It is rated for 24 hours of battery against 14 for the Ultimate Ears Wonderboom 4. It keeps a wired aux input, which the Ultimate Ears Wonderboom 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Wonderboom 4. The tradeoff: Bass distorts noticeably on bass-heavy tracks at default settings, and the distortion persists even after enabling Trueplay tuning and manually pulling bass back in the app.
Buy the Ultimate Ears Wonderboom 4 if the price matters more than sound quality. Buy the Sonos Play if sound quality matters more than the price.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A small, tough waterproof speaker with a strap loop and USB-C charging, easy to clip on a bag for outdoor trips.
A Wi-Fi and Bluetooth portable with wide stereo sound, a long lasting swappable battery, waterproofing and full Sonos multiroom support.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Ultimate Ears Wonderboom 4 | Sonos Play | |
|---|---|---|
| Price | $64.99 | $299.00 |
| Ranked | #108 of 177 in Medium Size Portable Bluetooth Speakers | #56 of 177 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 14 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Maximum SPL | 87dB (Manufacturer specified) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 2.9 lbs (1.3 kg) |
| IP Rating | IP67 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.3 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 7.6” x 4.4” x 3” (192.3 x 112.5 x 76.7 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | mid-woofer, 2x angled tweeters |
| TWS | Yes | Yes |
| Party Mode | No | No |
| App | No | Yes |
| EQ | No | No |
| Built-in Microphone | No | Yes |
| Power Bank | No | No |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| Strap | Yes (built-in loop) | - |
| Voice Assistants | - | Amazon Alexa (Sonos Voice Control also built in) |
| Wi-Fi | - | Yes |
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