Is viofo a139 pro profitable to sell on Amazon United States?

The niche generates $55K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +13.6%. Flapen's verdict: Skip it (27/100).

How competitive is the viofo a139 pro niche?

4 brands and 13 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in viofo a139 pro?

Top complaints mined from reviews: Durability, Functionality-Overall, Camera Quality. The return rate is 5.3% — above our launch gate.

When does demand for viofo a139 pro peak?

Demand peaks in Nov–Dec; the busiest month runs 2.2× the quietest.

What does it cost to enter the viofo a139 pro niche?

Listings span $100.97–$451.71; the average listing price is $203.28 (sweet spot $15–$100). The average incumbent carries 4,506 reviews — the moat a new listing must climb.

viofo a139 pro

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Okay$203.28

avg listing price — sweet spot $15–$100

Growth

Okay+13.6%

90-day search growth — must beat 0% to launch

Competition

Okay69%

top-5 click share — leaders hold, buyers still browse

Review moat

Bad4,506.36

avg incumbent reviews — the moat a new listing must climb

Returns

Bad5.3%

return rate — above 5% kills the launch gate

Conversion

Bad1.4%

search→purchase rate — share of searches ending in a sale

Market size

Bad$55K

$55K/yr · 20K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

Price range

Bad$100.97–$451.71

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals High Returns High Price

According to Flapen's Amazon United States niche tracking, viofo a139 pro is a $55K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 27/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

viofo a139 pro market data

Units sold / yr: 100–250; avg 0–100/product
Revenue / yr: $20K–$51K; units × avg price
Conversion rate: 1.4%
Avg BSR: #169
Page quality: 0%
Prime: 93%
Sponsored: 93%
Out of stock: 5.3%
Avg brand age: 23 months
Avg seller age: 236 days

Competition & brand share

The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.

Brands

4 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

VIOFO90%
ROVE4%
REDTIGER3%
VANTRUE3%

Demand & seasonality

Weekly Amazon search volume, last 86 weeks — +13.6% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 2.2×

Open Trend

Top viofo a139 pro search terms

viofo a139 pro12K/yr +9.4%1.2% conv.
viofo a1396K/yr +29.0%1.1% conv.
viofo a139 pro 2ch687/yr +0.0%0.0% conv.
a139 pro931/yr -27.1%0.0% conv.

All search terms

Top viofo a139 pro 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

VIOFO A229 Plus Dash Cam Front and Rear Dual STARVIS 2 Sensors 2 Channel HDR 1440P+1440P Voice Control Car Dash Camera 5GHz Wi-Fi Voice Control Ultra-Precise GPS

VIOFO$176.274.4★2,050 rev

VIOFO A229 Pro 4K HDR Dash Cam Dual STARVIS 2 IMX678 IMX675 4K+2K Front and Rear Car Camera 2 Channel with HDR Voice Control 5GHz WiFi GPS Night Vision 2.0 24H Parking Mode

VIOFO$253.224.2★1,402 rev

VIOFO A119M Pro 4K HDR MINI Dash Cam STARVIS 2 IMX678 Sensor Front Dash Camera for Cars Wi-Fi 6 Quad-Mode GPS Voice Control Night Vision 2.0 24H Parking Mode Supercapacitor

VIOFO$154.954.4★236 rev

VIOFO Dual Dash Cam 2K 1440P 60fps+1080P 30fps Front and Rear Dash Camera with Wi-Fi GPS Parking Mode Emergency Recording Super Capacitor Motion Detection (A129 Plus Duo)

VIOFO$155.214.2★3,287 rev

VIOFO 4K HDR Dash Cam Front and Rear A139 Pro 2CH STARVIS 2 IMX678 Sensor Superb Night Vision Ultra HD 4K + 1080P Dashcam for Car 5GHz WiFi GPS 24H Parking Mode (A139PRO 2CH)

VIOFO$234.444.1★495 rev

Newest

by launch date

Vantrue New N4S 3 Channel Dash Cam STARVIS 2 Night Vision Front Rear Inside Dashcam for Cars Front and Rear Dual Channel PlatePix Tech Parking Mode Wi-Fi GPS 2 IPS Support 1TB (RC18)

VANTRUE$206.68302 rev

5mo ago

VIOFO A119M Pro 4K HDR MINI Dash Cam STARVIS 2 IMX678 Sensor Front Dash Camera for Cars Wi-Fi 6 Quad-Mode GPS Voice Control Night Vision 2.0 24H Parking Mode Supercapacitor

VIOFO$154.95236 rev

8mo ago

VIOFO A329S 4K 3 Channel Dash Cam 4K Front + 2K Cabin Fisheye (210) + 2K Rear Power Saving Parking Mode Wi-Fi 6 App Control All-Channel STARVIS 2 Sensors Supports up to 4TB SSD Storage

VIOFO$451.71241 rev

1y ago

VIOFO A329S 4K 60FPS Dash Cam Front and Rear 4K+2K Dual Dash Camera for Cars Power Saving Parking Mode Wi-Fi 6 App Control Dual STARVIS 2 Sensors Supports up to 4TB SSD

VIOFO$390.33221 rev

1y ago

ROVE R2-4K DUAL Dash Cam Front and Rear STARVIS 2 Sensor FREE 128GB Card Included 5G WiFi - up to 20MB/s Fastest Download Speed with App 4K 2160P/FHD Dash Camera for Cars 3 IPS 24H Parking Mode

ROVE$111.4412,805 rev

2y ago

What buyers say about viofo a139 pro

What buyers praise and complain about, mined from review topics.

What buyers love

Camera Quality27%

“Great camera for my needs”

Quality-Overall12%

“Good quality device”

Assembly/Installation10%

“Easy set up”

Value For Money8%

“Good Value for Money”

Ease Of Use5%

“easy to follow”

Image/Picture Clarity4%

“Great picture”

Software/Application3%

“the app is excellent”

Advertised Vs Actual Product2%

“As advertised”

Connectivity-Overall2%

“But otherwise no issues with connection”

Night Vision2%

“The night vision is clear”

What buyers complain about

Durability17%

“Does not last”

Functionality-Overall9%

“slow”

Camera Quality8%

“Camera not working”

Connectivity-Overall8%

“It doesnt connect”

Software/Application4%

“bad app”

Quality-Overall4%

“Garbage”

Assembly/Installation4%

“Difficult to install”

Value For Money3%

“they werent cheap”

Heating2%

“It heats up”

Adhesion/Stickiness2%

“Awful Adhesion”

Top return reasons

Value For Money16%

Compatibility-Overall16%

Assembly/Installation12%

Functionality-Overall10%

Camera Quality7%

Connectivity-Overall6%

Size-Overall6%

Advertised Vs Actual Product5%

Defective Material/Parts3%

Constant Reboot Or Restart2%

Common questions

Is viofo a139 pro profitable to sell on Amazon United States?: The niche generates $55K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +13.6%. Flapen's verdict: Skip it (27/100).
How competitive is the viofo a139 pro niche?: 4 brands and 13 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in viofo a139 pro?: Top complaints mined from reviews: Durability, Functionality-Overall, Camera Quality. The return rate is 5.3% — above our launch gate.
When does demand for viofo a139 pro peak?: Demand peaks in Nov–Dec; the busiest month runs 2.2× the quietest.
What does it cost to enter the viofo a139 pro niche?: Listings span $100.97–$451.71; the average listing price is $203.28 (sweet spot $15–$100). The average incumbent carries 4,506 reviews — the moat a new listing must climb.