Viofo A139 Pro
FailThe top 5 brands take 100% of clicks, so Viofo A139 Pro is a Fail.
- Flapen Score
- 27 / 100Ranks 7,921 of 8,347 Electronics niches · −16 vs the category median of 4327
- Market size
- $55K/yr20K searches / yr
- 90-day growth
- +13.6%search demand this quarter
- Competition
- 69%top-5 click share · 4 brands · 13 sellers
Flapen Score
Viofo A139 Pro against its category
The dotted line is the Electronics average. Past it, Viofo A139 Pro is stronger. Inside it, weaker.
Market
The Viofo A139 Pro market on Amazon at a glance
Shoppers on Amazon United States searched for Viofo A139 Pro 20K times last year and spent an estimated $55K. All 4 brands take every click. Demand peaks in Nov–Dec. Flapen scores it 27 out of 100, a Fail.
01 · Demand
An estimated 1.4% of those searches ended in a purchase.
Shoppers searched for this 20K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.4% of those searches ended in a purchase. Searches in the last 90 days moved +13.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $55K a year.
- Searches, last 12 months
- 20K
- Growth, 90 days vs prior 90
- +13.6%
- Conversion, latest week
- 1.4%
- Market size, estimated
- $55Ka year
- Peak month
- December2.2× the quietest month
- Top search term
- viofo a139 pro12K searches a year
02 · Price
A sale here is worth $203.28.
Listings sell for $203.28 on average, from $100.97 to $451.71. Amazon reports units sold in ranges. This niche sold 100 to 250 a year. The average listing sells 0 to 100 of them. At $203.28 that is $0 to $20K a year per listing.
- Average price
- $203.28above the $15 to $100 sweet spot
- Price range
- $100.97–$451.71
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 100–250
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$20K
- Returns
- 5.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
93% of listings pay for placement with sponsored ads. 93% ship with Prime. On an average day, 5.3% of listings are out of stock. The average listing ranks #169 within Car & Vehicle Electronics. It carries 4,506 reviews at 4.34 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 93%
- Out of stock, average day
- 5.3%
- Average rank
- #169in Car & Vehicle Electronics
- Average rating
- 4.34 starsAmazon United States average 4.42 stars
- Average reviews
- 4,506per listing
- Listings tracked
- 14
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 23 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 23 months
Products
Top Viofo A139 Pro products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 21, 2026. The live listing can differ.
Top sellers
by estimated 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
- Price
- $176.27
- Rating
- 4.4/5
- Reviews
- 2,050
- Age
- 2y ago

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
- Price
- $253.22
- Rating
- 4.2/5
- Reviews
- 1,402
- Age
- 2y 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
- Price
- $154.95
- Rating
- 4.4/5
- Reviews
- 236
- Age
- 8mo ago

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)
- Price
- $155.21
- Rating
- 4.2/5
- Reviews
- 3,287
- Age
- 5y ago

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)
- Price
- $234.44
- Rating
- 4.1/5
- Reviews
- 495
- Age
- 3y ago
Trending
estimated 90-day click momentum
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)
- Price
- $234.44
- Rating
- 4.1/5
- Reviews
- 495
- Age
- 3y ago

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)
- Price
- $206.68
- Rating
- 4.4/5
- Reviews
- 302
- Age
- 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
- Price
- $154.95
- Rating
- 4.4/5
- Reviews
- 236
- Age
- 8mo 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
- Price
- $390.33
- Rating
- 4.5/5
- Reviews
- 221
- Age
- 1y ago

VIOFO A229 Pro 3 Channel 4K HDR Dash Cam Dual STARVIS 2 Sensors IMX678 & IMX675 4K+2K+1080P Front Inside and Rear Triple Car Camera 5GHz WiFi GPS Voice Control 24H Parking Mode
- Price
- $283.87
- Rating
- 4.3/5
- Reviews
- 614
- Age
- 2y ago
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)
- Price
- $206.68
- Rating
- 4.4/5
- Reviews
- 302
- Age
- 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
- Price
- $154.95
- Rating
- 4.4/5
- Reviews
- 236
- Age
- 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
- Price
- $451.71
- Rating
- 4.4/5
- Reviews
- 241
- Age
- 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
- Price
- $390.33
- Rating
- 4.5/5
- Reviews
- 221
- Age
- 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
- Price
- $111.44
- Rating
- 4.5/5
- Reviews
- 12,805
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 69% of clicks. Leaders hold, but buyers still shop past them.
Brands
4 flat
Sellers
13
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
69%
Top 20: 100%
Open market
0%
- VIOFO90%
- ROVE4%
- REDTIGER3%
- VANTRUE3%
Demand
Viofo A139 Pro search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov, Dec · busiest ÷ quietest = 2.2×
Search terms
Top Viofo A139 Pro search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- viofo a139 pro12K/yr
- viofo a1396K/yr
- viofo a139 pro 2ch687/yr
- a139 pro931/yr
Reviews and returns
What reviews say buyers love and hate about Viofo A139 Pro
We read the reviews and the return reasons for every product selling here.
“Does not last”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Viofo A139 Pro questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









