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phoinix | Staff 49.7K Views
May 28, 2026 2:50 AM

Ultimate Ears WONDERBOOM 4 Waterproof Bluetooth Outdoor Speaker (Blue)

$51

$100

49% off
+ Free S&Hat Amazon
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Deal Details
Update: This extremely popular front page deal is still available.

Amazon has Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker (Blue) on sale for $51.44. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

About this product:
  • 360-degree balanced sound with boosted outdoor audio and podcast mode
  • IP67 waterproof rating floats in 1m water for 30 minutes
  • 14 hours playtime via USB-C charging cable
  • 131' wireless range with drop resistance from 5'
  • 31% post-consumer recycled plastic in construction

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This price is $8.55 lower than the previous Frontpage deal.
    • Our research indicates that this offer is $18.55 lower (26% savings) than the next best available price from a reputable merchant with prices starting from $69.99
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This extremely popular front page deal is still available.

Amazon has Ultimate Ears WONDERBOOM 4 Portable Waterproof Bluetooth Speaker (Blue) on sale for $51.44. Shipping is free.

Thanks to Deal Hunter phoinix for finding this deal.

About this product:
  • 360-degree balanced sound with boosted outdoor audio and podcast mode
  • IP67 waterproof rating floats in 1m water for 30 minutes
  • 14 hours playtime via USB-C charging cable
  • 131' wireless range with drop resistance from 5'
  • 31% post-consumer recycled plastic in construction

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This price is $8.55 lower than the previous Frontpage deal.
    • Our research indicates that this offer is $18.55 lower (26% savings) than the next best available price from a reputable merchant with prices starting from $69.99
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff

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Top Comments

WittyGoat5368
29Comments
14Reputation
Unlike a couple of others who posted positive experience with this item, my experience was pretty bad. It worked fine for a few weeks. Then, inexplicably, it started making a repetitive droning sound, sort of like an engine hiccuping (dzhuh, dzhuh, dzhuh, dzhuh, dzhuh, etc.). It would not turn off and the volume buttons didn't work. I could find no reset pin (nor any reset instructions in the very sparse "documentation" included with the speaker). So, I returned it. For a day and a half, until I could get a chance to return it, it constantly made this annoying sound - I repackaged it and had to put it in the oven in order to minimize the sound!
Go to Comment
soccerjonl
202Comments
42Reputation
This is my speaker of choice. Waterproof is a bonus. It's not enough for a full outdoor party environment, but it is definitely able to fill a room with quality sound while being the size of a softball. It has long battery life.
Go to Comment
jasonw2714
114Comments
43Reputation
I personally would never buy anything from Uline, but when I'm doing the ordering for the company that does need supplies, well then, it's free for me.
Go to Comment

Community Reviews

The Wonderboom 4 is a compact waterproof Bluetooth speaker that stands out for portability, solid build, and easy outdoor or shower use. It can fill a room or small studio with clear, crisp sound, and the battery life is described as strong. Pairing two units for stereo and the USB C upgrade add convenience, and the floating design is a useful bonus. The main tradeoffs are limited bass, occasional connection or reliability complaints, and a price that has often been seen much lower elsewhere. A handy small speaker if you value toughness and size over deep bass.

Common Questions (5)

AI-generated summary based on comments from the community. Updated ago

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97 Comments

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May 31, 2026 2:48 PM
10 Comments
Joined May 2026
FeistyJuice4636May 31, 2026 2:48 PM
10 Comments
nice!
May 31, 2026 4:20 PM
597 Comments
Joined Nov 2012
SamG5561May 31, 2026 4:20 PM
597 Comments
Quote from mikej View quoted comment :
This is a ridiculous price. I got 2 of these for $20 each at Sam's Club.
Hard to believe that was the same thing. These have only become cheaper over time. My Wonderboom 2 cost me $90. Still a great speaker.
May 31, 2026 5:09 PM
143 Comments
Joined Nov 2015
edfloresMay 31, 2026 5:09 PM
143 Comments
Quote from ArashN View quoted comment :
will this be loud enough for my car? I connect it to my phone! (stereo died and i rather not spend 400 on installing a new one!)
You can spend 200 on decent basic car stereo setup
May 31, 2026 5:11 PM
143 Comments
Joined Nov 2015
edfloresMay 31, 2026 5:11 PM
143 Comments
Quote from mikej View quoted comment :
This is a ridiculous price. I got 2 of these for $20 each at Sam's Club.
Was this 10 years ago?! Everything is inexplicably inflated now!
May 31, 2026 11:46 PM
14 Comments
Joined Nov 2013
ArashNMay 31, 2026 11:46 PM
14 Comments
im returning it, the bose 2nd gen is better for everything in all the ways! im paying 100 instead of 50 but clearer sound, and louder as well
May 31, 2026 11:55 PM
419 Comments
Joined Mar 2008
sbasingerMay 31, 2026 11:55 PM
419 Comments
Thanks
1
Jun 1, 2026 12:07 AM
3 Comments
Joined May 2014
AugustStuJun 1, 2026 12:07 AM
3 Comments
One of the better bang-for-your-buck brand name speakers. The 3 I've had for several years is the last micro USB device I use. Thank goodness they finally upgraded to usb-C on this.

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Jun 1, 2026 12:12 AM
3.6K Comments
Joined Feb 2008
overzeetopJun 1, 2026 12:12 AM
3.6K Comments
Protop: Make sure you turn off your "WonderBoom" before boarding your flight.
1
Jun 1, 2026 1:18 AM
44 Comments
Joined Jul 2022
RepugnantCreatureJun 1, 2026 1:18 AM
44 Comments
Quote from SamG5561 View quoted comment :
Hard to believe that was the same thing. These have only become cheaper over time. My Wonderboom 2 cost me $90. Still a great speaker.
The Wonderboom SE were $24 in October and November last year, it was posted a few times here and I bought a couple. The bottom of the speaker says Wonderboom 4 but the model numbers don't match the ones shown on Amazon, so idk what the difference is. The Sam's version also had a regular price of $44. They are supposed to be able to "double up" to play in stereo but I couldn't ever get them to connect to each other

https://slickdeals.net/f/18701035
Last edited by RepugnantCreature May 31, 2026 at 06:21 PM.
Jun 1, 2026 1:36 AM
8.1K Comments
Joined Feb 2012
fishyxJun 1, 2026 1:36 AM
8.1K Comments
Quote from edflores View quoted comment :
Was this 10 years ago?! Everything is inexplicably inflated now!
Sam's had them for $24.00 last October and I just grabbed a blue Wonderboom 4 on clearance at Walmart the other day for $29.00. There are also some amazing deals on TVs these days.
Jun 1, 2026 2:55 AM
1.4K Comments
Joined Sep 2005
superbaldeJun 1, 2026 2:55 AM
1.4K Comments
Best all around speaker there is!
Jun 1, 2026 3:31 AM
11 Comments
Joined Feb 2012
Anthony31Jun 1, 2026 3:31 AM
11 Comments
Amazing deal
Jun 1, 2026 3:57 AM
124 Comments
Joined Oct 2025
StrongCrib710Jun 1, 2026 3:57 AM
124 Comments
Quote from SamG5561 View quoted comment :
Hard to believe that was the same thing. These have only become cheaper over time. My Wonderboom 2 cost me $90. Still a great speaker.
Sam's had these crazy cheap for awhile. It wasn't recently but I remember them basically giving them away around $20 or $25 each
Jun 1, 2026 4:21 AM
42 Comments
Joined Jan 2017
mador012Jun 1, 2026 4:21 AM
42 Comments
Good deal!
1

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Jun 1, 2026 8:50 AM
315 Comments
Joined Feb 2009
pensfan77Jun 1, 2026 8:50 AM
315 Comments
thanks

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