Ultimate Ears Wonderboom 4

Pros

• Setup simplicity ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 5.0
  The Wonderboom 4 is widely praised for its fuss free setup, often arriving charged and playing music within a minute of unboxing, with intuitive buttons and Fast Pair on Android removing the need for apps or detailed instructions.
• Dust resistance rating ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.9
  Thanks to its IP67 rating, the Wonderboom 4 is sealed against dust as well as water, so owners can confidently use it at the beach or on dusty trails without worrying about grit and debris damaging the speaker.
• Water resistance rating ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.9
  The Wonderboom 4 carries an IP67 rating and a sealed charging port, and combined with its float friendly build it is widely trusted for showers, poolside listening and rainy trips, so long as owners avoid prolonged submersion.
• USB-C charging ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.8
  Recent reviews praise the long overdue move to a rear USB C charging port with a snug rubber door that keeps water sand and dust out, noting that ditching the old MicroUSB makes it easier to share modern chargers and is compelling enough for some Wonderboom 3 owners to upgrade even though the bundled cable still uses USB A on the charger side.
• Float capability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.8
  Thanks to its IP67 weatherproofing and buoyant design, the Wonderboom 4 can float if dropped in water, reducing the risk of losing it in pools or baths, though it pauses playback and its sound dulls slightly until it dries off.
• Low-volume performance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.8
  Reviewers appreciate that the Wonderboom 4 can play at impressively low volumes while keeping its basic tonal balance intact, making it suitable for background listening, late night use or quiet hotel rooms as well as louder outdoor sessions.
• Drop resistance durability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.7
  Rubberized ends, a fabric shell and IP67 sealing make the Wonderboom 4 effectively drop proof from around 1.5m, shrugging off everyday bumps, poolside mishaps and camping trips as a genuinely adventure ready speaker.
• Bluetooth range ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 4.7
  Users appreciate the Wonderboom 4s generous Bluetooth range of around 40m, which keeps music playing reliably across typical homes or out in gardens and parks without having to keep the source device right next to it.
• Omnidirectional sound ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.5
  Reviews highlight the Wonderboom 4’s 360 degree sound dispersion, meaning music stays broadly consistent wherever you are around the speaker and delivering a surprisingly full, well balanced presentation at picnics, campsites or in small rooms without careful aiming.
• Cohesive presentation ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.5
  Across songs and genres the Wonderboom 4 maintains a consistent, cohesive sound, handling everything from dense jazz arrangements to heavy metal without the presentation falling apart or key musical lines getting lost.
• Detail retrieval ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
  Reviewers note that the Wonderboom 4 resolves impressive detail for its size, cleanly separating bass guitar lines, guitars and piano in busy mixes so complex rock and jazz tracks remain clear and engaging.
• Dialogue clarity (for TV/soundbar use) ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Sustainability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
  Positioned as a more eco friendly choice, the Wonderboom 4 uses significant amounts of post consumer recycled plastic, a fabric wrap made from recycled polyester and FSC certified packaging to reduce its environmental footprint.
• Battery life (if portable) ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.4
  Rated around 14 hours of playtime, the Wonderboom 4 often matches or exceeds that figure in testing, comfortably lasting long outdoor days or several heavy use sessions between weekend charges.
• Design & aesthetics ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.4
  The Wonderboom 4 keeps its compact cylinder shape with rubberized ends, colorful fabric mesh and oversized volume icons, giving it a fun, rugged backpack ready look rather than a minimalist living room showpiece, and newer reviews also highlight its cute chunky styling and use of recycled materials and sustainable fabric and packaging.
• Weight convenience ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.4
  At roughly 0.9 pounds and small enough for most bags, the Wonderboom 4 is easy to toss into a backpack or camping pack, offering a good balance of portability and presence even if it is a touch chunky for very slim briefcases or laptop sleeves.
• On-device controls ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.4
  A straightforward button layout with large volume symbols on the front plus simple power, Bluetooth, playback and mode controls makes the Wonderboom 4’s on device controls generally easy to learn and use, though the unlabelled top keys introduce a slight learning curve.
• Multipoint connectivity ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.3
  The Wonderboom 4 supports Bluetooth multipoint, allowing two source devices to stay connected so friends can easily take turns playing music without constantly repairing.
• Frequency response balance ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.2
  Across reviews the Wonderboom 4 is described as lively and broadly balanced for its size, with punchy but not earth rumbling bass that avoids swamping clear mids and energetic treble, and more recent notes praise its bright, well rounded tuning and impressively retained bass while also mentioning a slightly thin top end and limited slam for hardcore bass fans.
• Value for money ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.1
  Positioned around the sub $100 mark and often discounted, the Wonderboom 4 is widely regarded as excellent value thanks to its rugged waterproof build, 360 degree sound and long battery life, though reviewers note that the cheaper Wonderboom 3 now undercuts it while offering a very similar listening experience.
• Inter-speaker connectivity ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.1
  The Wonderboom 4 supports simple inter speaker connectivity via button presses, letting you Double Up with another Wonderboom 3 or 4 either for a louder shared playback or as true left right stereo speakers that reveal more detail than a single unit, though it still does not integrate into broader multi speaker PartyUp style groups.
• Loudness / maximum volume ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 3.8
  Despite its palm sized footprint the Wonderboom 4 reaches impressive volume levels and can comfortably fill small to medium rooms or outdoor hangouts, but reviewers note that it is not the biggest sounding speaker for its size and that pushing it toward maximum can make the cabinet vibrate and the sound lose composure.
• Bluetooth connection stability ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.7
  Reviews describe the Wonderboom 4s Bluetooth connection as quick to pair and generally stable with low lag for music and video, with Android users in particular benefiting from near instant Google Fast Pair setup, though a few phones still report occasional cutouts.