waterproof usb port
Worth a lookShows a sweet-spot price point ($32.53 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$32.53avg listing price — sweet spot $15–$100
Growth
Great+71.1%90-day search growth — must beat 0% to launch
Competition
Great38%top-5 click share — an open shelf
Returns
Great1.9%return rate — above 5% kills the launch gate
Review moat
Good564.75avg incumbent reviews — the moat a new listing must climb
Price range
Good$9.27–$133.99cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good66%top-5 brand share — brands hold most of the demand
Conversion
Good4.9%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Okay$124K$124K/yr · 78K searches
According to Flapen's Amazon United States niche tracking, waterproof usb port is a $124K/yr Amazon United States market (78K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 63/100.
Data updated Jul 5, 2026 · scored weekly · How we score niches
waterproof usb port market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $98K–$130K
- units × avg price
- Conversion rate
- 4.9%
- Avg BSR
- #449
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 80%
- Out of stock
- 0.9%
- Avg brand age
- 41 months
- Avg seller age
- 189 days
Competition & brand share
Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.Brands
20 falling
Sellers
137
Top-5 brand share
66%
Top 20: 100%
Top-5 click share
38%
Top 20: 80%
Open market
31%
- Hapytrip35%
- Scanstrut15%
- HCGZHEN6%
- Blue Sea Systems6%
- SUTNSCW4%
- Tailinwen4%
Demand & seasonality
Weekly Amazon search volume, last 100 weeks — +71.1% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 2.3×
Top waterproof usb port search terms
- marine usb charging port14K/yr
- waterproof usb port13K/yr
- boat phone charger9K/yr
- marine phone charger8K/yr
- boat usb charging port waterproof7K/yr
- marine usb outlet waterproof11K/yr
- boat usb port5K/yr
- waterproof usb outlet5K/yr
- waterproof usb charger4K/yr
- marine usb outlet3K/yr
Top waterproof usb port products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Upgraded 4 Port 12V USB Outlet Aluminum Charger 78W Dual PD & QC Multiple USB Port for Car USB C Cigarette Lighter Replacement 12 Volt Socket with Voltmeter Waterproof for Marine Boat Motorcycle RV
Hapytrip$14.984.7★1,410 rev
SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility
Scanstrut$117.694.5★13 rev
12V USB Outlet Wire USB Charger Multi Port Dual PD3.0 USB-C and Quick Charge3.0 Car Port Socket with Power Switch Fast Charge for Phone lPad Android Phones Suitable for Car Boat RV Marine ATV
Hapytrip$14.504.5★1,710 rev
Upgraded 4 Port 12V USB Outlet 78W Dual PD & QC Aluminum Alloy USB Ports with LED Voltmeter Waterproof for Cars Cigarette Lighter Replacement 12V Socket for Boats RV Trucks and Motorcycles
HCGZHEN$13.654.6★329 rev
Blue Sea Systems 1016 Dual USB Charger Socket 12/24v 2.1a Black
Blue Sea Systems$21.344.6★840 rev
Newest
by launch date
Anina 78W Dual PD USB-C QC3.0 Fast Charging 3 Port Car Charger Socket 12V/24V with Voltmeter and Battery Protection Switch USB Outlet Cigarette Lighter for Marine Boat RV Truck Golf Cart Motorcycle
Anina$15.3426 rev
Acegoo 12V USB Outlet 30W PD Type-C & 18W QC3.0 Aluminum Car Charger Waterproof Dual Port Fast Charging Socket Cigarette Lighter Replacement Accessories for RV Camper Trailer Truck Boat Golf (2 PCS)
acegoo$27.1573 rev
SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility
Scanstrut$117.6913 rev
SCANSTRUT Edge. 15W Waterproof Wireless ADJUS
Scanstrut$133.994 rev
78W 4 Port 12V USB Outlet Wall Mount Dual 36W PD & Dual 18W QC3.0 Lightweight Surface Mount Charger Socket Panel with Button Switch for Bus RV Truck Marine Golf Cart
Hapytrip$15.01550 rev
Trending
90-day click momentumSCANSTRUT Edge. 15W Waterproof Wireless ADJUS
Scanstrut$133.994.7★
Anina 78W Dual PD USB-C QC3.0 Fast Charging 3 Port Car Charger Socket 12V/24V with Voltmeter and Battery Protection Switch USB Outlet Cigarette Lighter for Marine Boat RV Truck Golf Cart Motorcycle
Anina$15.344.9★
USB C Car Charger Socket Marine Grade 12V Outlet with Dual 18W PD Ports & QC 3.0 Fast Charging IP66 Waterproof Aluminum Flush Mount for Car Boat RV Marine
JUIXINVIM$16.994.4★
SCANSTRUT Active 15W Waterproof Wireless Charger Mount IPX6 Rated 12/24V Qi Fast Charging Phone Holder for Boats RVs & ATVs One-Hand Docking Secure Grip Universal Compatibility
Scanstrut$117.694.5★
2 Pack 12V USB Outlet Wired Charger Multi Port Dual PD3.0 USB-C and Quick Charge 3.0 Car Port Socket with Power Switch Fast Charger for Cell Phone Tablet Suitable for Car Boat RV Marine ATV
Hapytrip$21.774.5★
What buyers say about waterproof usb port
What buyers praise and complain about, mined from review topics.What buyers love
“Charges fast”
“Easy install in a box easy to install”
“Great product, work as expected”
“The three ports are convenient”
“As advertised”
“Good size”
“it works flawlessly”
“Excellent value”
“compact the unit is”
“Easy peasy”
What buyers complain about
“Did not last”
“This is not as good quality as I had hoped”
“the port itself wouldnt conduct”
“Did not work”
“it stopped charging”
“So tiny”
“Inaccurate description”
“No instructions”
“Just poorly put together”
“Its a bit on the pricey side”
Top return reasons
Common questions
- Is waterproof usb port profitable to sell on Amazon United States?
- The niche generates $124K/yr across 40 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is +71.1%. Flapen's verdict: Worth a look (63/100).
- How competitive is the waterproof usb port niche?
- 20 brands and 137 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 66% of demand.
- What do buyers complain about in waterproof usb port?
- Top complaints mined from reviews: Durability, Quality-Overall, Socket/Port/Plug. The return rate is 1.9%.
- When does demand for waterproof usb port peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 2.3× the quietest.
- What does it cost to enter the waterproof usb port niche?
- Listings span $9.27–$133.99; the average listing price is $32.53 (sweet spot $15–$100). The average incumbent carries 565 reviews — the moat a new listing must climb.