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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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Jun 2, 2026 8:32 AM
1 Comments
Joined Feb 2020
AyyyemsparkerJun 2, 2026 8:32 AM
1 Comments
Love this thing
Jun 2, 2026 10:02 AM
7 Comments
Joined Jul 2018
SlickStranger680Jun 2, 2026 10:02 AM
7 Comments
Good?
Jun 2, 2026 11:21 AM
127 Comments
Joined Jun 2017
gc7238Jun 2, 2026 11:21 AM
127 Comments
Quote from Ryan2010 View quoted comment :
Good deal, paid about this a year ago, but I do not care for the speaker, or maybe I got a dud. Sounds good, but has connection issues with both Samsung fold 6 and Pixel 10 pro. Basically skips every 5 minutes or so, did all the reddit fix suggestions but nothing worked. Phones both pair fine with everything else.
You definitely have a dud. 5+ years with mine and never had that issue
Jun 2, 2026 1:41 PM
50 Comments
Joined Jan 2017
nN8565Jun 2, 2026 1:41 PM
50 Comments
Looks decent
Jun 2, 2026 2:10 PM
32 Comments
Joined Dec 2014
beakerguy6Jun 2, 2026 2:10 PM
32 Comments
This color is the same price at Best Buy
Jun 2, 2026 3:58 PM
23 Comments
Joined Oct 2025
SplendidHamster4438Jun 2, 2026 3:58 PM
23 Comments
Tempting
Jun 2, 2026 4:05 PM
55 Comments
Joined Nov 2007
sethmeistergJun 2, 2026 4:05 PM
55 Comments
This speaker is The BOMB Wink

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Jun 2, 2026 4:06 PM
992 Comments
Joined Jan 2009
MiraxchangeJun 2, 2026 4:06 PM
992 Comments
Quote from Aznline View quoted comment :
I think this is the brand of speaker that caused that United flight to Spain to turn back to NYC. Be sure to turn it off before you board any flight lol
that's not why it happened. the kid literally renamed his device to BOMB.
Jun 2, 2026 4:07 PM
72 Comments
Joined Dec 2015
CaffeinatedGuyJun 2, 2026 4:07 PM
72 Comments
What's the bluetooth name for these? It's not something with "boom" more "bomb" in the name, right?
Jun 2, 2026 4:25 PM
8.1K Comments
Joined Feb 2012
fishyxJun 2, 2026 4:25 PM
8.1K Comments
Quote from SlickStranger680 View quoted comment :
Good?
Decent but if you listen to music with any bass at all you probably won't be happy with the Wonderboom.
Jun 2, 2026 5:08 PM
235 Comments
Joined Nov 2017
pktarJun 2, 2026 5:08 PM
235 Comments
Interesting
Jun 2, 2026 6:24 PM
114 Comments
Joined Mar 2018
jasonw2714Jun 2, 2026 6:24 PM
114 Comments
Quote from sheydtree View quoted comment :
I am the owner of a 3PL. We buy 5k boxes a month from Uline and are grandfathered in on free shipping when purchasing $500 or more. Located in Florida. Genuine question, who do you use for boxes if that is part of your business. If I can find a better price, I am all for it. I have so many Weber grills at this point.
My company uses three packaging suppliers. Two are west coast companies, but one does have more reach across the US - Mill Rock Packaging. Don't know if they can supply your area and I don't know if the price will be much difference - we only save a few cents per box vs Uline, but we order about 50k boxes from them.
Free shipping from Uline is actually a pretty good deal.

I like to try and find the items that aren't Uline branded and give them out as gifts or trade.
Jun 2, 2026 8:08 PM
12 Comments
Joined Nov 2024
HappyRoute957Jun 2, 2026 8:08 PM
12 Comments
Out of stock on 6/2 4pm ET.
Jun 3, 2026 3:30 AM
52 Comments
Joined Apr 2022
TenseHorn743Jun 3, 2026 3:30 AM
52 Comments
Nice deal

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Jun 3, 2026 3:58 AM
947 Comments
Joined Nov 2013
Raistlin1Jun 3, 2026 3:58 AM
947 Comments
I see the JBL flip 7 is on sale for $99 at many places. Wonder if that is worth double the price of this one...

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