Ultimate Ears Wonderboom 4

Pros

• Setup simplicity ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 5.0
  The Wonderboom 4 is praised for its simple setup, with fast Bluetooth pairing and intuitive controls meaning most people can get music playing within moments without needing an app or detailed instructions.
• USB-C charging ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.9
  The switch to USB C charging modernizes the Wonderboom 4, making it easier to share chargers and retire older MicroUSB cables while the protected rear port keeps the socket safe from water and debris during outdoor use.
• 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, poolside or on outdoor trips without worrying about grit and debris damaging the speaker.
• Water resistance rating ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.9
  With an IP67 waterproof rating and a buoyant design the Wonderboom 4 is comfortable around showers, pools, rain and brief submersion, making it a reliable choice for bathroom listening and poolside or beach use.
• Build quality ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.8
  The Wonderboom 4 feels rugged and well put together, with its fabric wrap, rubberized ends and solid cylinder chassis inspiring confidence that it can handle daily knocks, outdoor adventures and wet environments without complaint.
• Float capability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.7
  With IP67 weatherproofing and a buoyant design, the Wonderboom 4 can float if dropped in water, reducing the risk of losing it during pool, bath or beach use and reinforcing its appeal as a worry free outdoor 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.
• Drop resistance durability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.6
• Battery life (if portable) ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.6
  Ultimate Ears rates the Wonderboom 4 for around 14 hours of playtime, and reviewers consistently find it lasts through long days out or even short camping trips before needing a recharge, outlasting many similarly sized portable speakers.
• Weight convenience ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.6
  At roughly 420 grams and small enough for most bags, the Wonderboom 4 is easy to toss into a backpack or clip to a bag, though it can feel a bit chunky for very slim briefcases or laptop sleeves.
• Omnidirectional sound ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.5
  Reviews highlight the Wonderboom 4s 360 degree sound dispersion, meaning music stays broadly consistent wherever you are around the speaker so there is little need to aim it carefully to enjoy a balanced presentation.
• Low-volume performance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
  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.
• Sustainability ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• On-device controls ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.4
  A straightforward six button layout handles power, pairing, playback, volume, mode switching and battery checks, and owners find the oversized volume keys satisfying while appreciating that even stereo pairing with another Wonderboom can be triggered quickly from the buttons without needing an app.
• Design & aesthetics ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 4.3
  The Wonderboom 4 keeps the same friendly compact cylinder design in bright fabric with oversized volume icons and a small loop, delivering a fun, backpack ready look that prioritizes cheerful practicality over minimalist premium styling.
• Detail retrieval ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.3
• Inter-speaker connectivity ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.2
  The Wonderboom 4 supports simple inter speaker connectivity, letting you pair it with another Wonderboom, including cross generational pairing with the Wonderboom 3, to create a stereo setup using only button presses and no companion app.
• Value for money ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.1
  Priced just under the usual budget speaker cutoff and often discounted, the Wonderboom 4 is widely regarded as strong value thanks to its rugged waterproof build, 360 degree sound and long battery life, and reviewers now call it one of the easiest affordable Bluetooth speakers to recommend given that it adds USB C without raising the price.
• Frequency response balance ★ ★ ★ ★ ★ ★ ★ ★ ★ 7 reviews 4.0
  Listeners describe the Wonderboom 4 as lively and broadly balanced, with warm but not overblown bass, clear mids and slightly lean treble that suits most genres indoors or out, and recent reviews add that it handles everything from mellow guitars to heavy rock confidently, only sounding a little grainy right at its very top volume.
• Multipoint connectivity ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Loudness / maximum volume ★ ★ ★ ★ ★ ★ ★ ★ ★ 6 reviews 3.9
  Despite its palm sized footprint the Wonderboom 4 reaches roughly mid 80s dB 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 can start to sound a bit strained when you push it all the way to maximum.
• Bluetooth connection stability ★ ★ ★ ★ ★ ★ ★ ★ ★ 3 reviews 3.8
• Bass performance ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 3.8
• Treble clarity ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 3.5