Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker
with 360-Degree, Bold, Immersive, Crystal-Clear Sound, Floating Speaker with 15-Hour Battery and 147ft (45m) Range - Black (Renewed)
$4.58 below its usual $92.96 since Sep 14
A new one costs $114.99 at Amazon today, $26.61 more.
at Amazon· sold by Park Dealsrefurbished
Near the bottom of its recorded range.
Go to Amazon$88.38 is near the bottom of its recorded range.
On November 2, 2026 the Ultimate Ears Boom 4 Portable Waterproof Bluetooth Speaker (renewed) costs $88.38 at Amazon, sold by Park Deals. Its usual price over the 50 days we have recorded since September 14, 2026 is $92.96; the lowest we recorded was $79.60, on October 3, 2026.
It has cost this or less on only 12% of the 50 days we have watched it. The lowest we have seen is $79.60, on October 3, 2026.
Today's price is $4.58 below its usual $92.96.
When the price here has fallen to $91.67 or below (7 times in our record), it stayed there a median of 27 hours, and at most 42 hours. Today's has run 22 hours so far.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history since September 14, 2026 (50 days)
One line: the best price any tracked retailer charged, per day.
Price set by a third-party seller, not the retailer itself
Shaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| Renewed | $88.38 | $79.60 on Oct 3 | $99.34 on Oct 17 | $92.96 | $92.63 | 50 |
- 30 days
- $79.60 on Oct 3
- All time
- $79.60 on Oct 3
Next time, from Amazon: change amazon.com to basketprice.com in a product’s address. This one is basketprice.com/dp/B0DTQC357Q.
Sales events
Next on the calendar: Black Friday, likely November 19–30. We keep checking this price through it and report here what it did.
Waiting for a sale? How often prices for speakers move, and how far they swing, beside every other category we track.
What our record shows
- $8.75 less than the $97.13 Amazon was charging on October 26, 2026.
- Below its usual $92.96 on 22 of the 50 days we have watched it here, in 5 separate stretches; at its lowest it touched $79.60 on October 3, 2026 without holding it.
- Cheaper than this on 6% of the 50 days we have watched it here.
Computed from our own checks at Amazon as of November 2, 2026. No line here uses a price a retailer told us about.
Where to buy
- Held for
- 1d
- Their 50-day low
- $79.60
- Checked
- 1h ago
Prices checked at least every 20 hours; “held for” is how long that retailer has been charging this price. How we check prices.
We earn a commission on purchases. It never affects our rankings.
What it is
5 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Color
- Black
- Weight
- 1.37 pounds
- Dimensions
- 7.25 × 2.87 × 2.87 inches
- Model
- Boom 4
- Warranty
- 90 days limited warranty
Cheaper in Speakers, and what changes
Things we track on the same shelf for at least 10% less than $88.38, with the attributes the retailers describe differently. Their words, not our judgement: we record prices, we do not test products.
Ultimate EarsWONDERBOOM 4 Portable Waterproof Speaker - Black$64.99 at Amazon $23.39 lessWeight: 1.19 pounds instead of 1.37 poundsDimensions: 8 × 4 × 4 inches instead of 7.25 × 2.87 × 2.87 inches- Ultimate EarsUEWONDER4BLK WonderBoom 4 Bluetooth Speaker$54.44 at Amazon $33.94 lessDimensions: 5.8 × 4.6 × 4.4 inches instead of 7.25 × 2.87 × 2.87 inches
W-KINGBluetooth Speaker$71.99 at Amazon $16.39 lessWeight: 6 pounds instead of 1.37 poundsDimensions: 12.6 × 4.65 × 4.65 inches instead of 7.25 × 2.87 × 2.87 inches
Every change we recorded at Amazon
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Price | Change |
|---|---|---|
| · 1d ago | $88.38 | −$2.84 |
| · 1d ago | $91.22 | −$0.91 |
| · 2d ago | $92.13 | −$1.63 |
| · 2d ago | $93.76 | +$5.38 |
| · 3d ago | $88.38 | −$2.24 |
| · 3d ago | $90.62 | −$1.52 |
6 older changes
| When | Price | Change |
|---|---|---|
| · 4d ago | $92.14 | −$2.18 |
| · 4d ago | $94.32 | −$2.14 |
| · 4d ago | $96.46 | −$0.93 |
| · 5d ago | $97.39 | −$2.56 |
| · 5d ago | $99.95 | +$1.54 |
| · 6d ago | $98.41 | −$0.54 |
Others we track in Speakers
See all Speakers prices
$88.38
at Amazon · we earn a commission