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A139 Pro 1CH
186 in Dash Cams

VIOFO - A139 Pro 1CH

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Reddit Reviews:


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Based on 1 year's data from Feb 25, 2026 How it works

Liked most:

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"I also run the hardwire kit and keep my car monitored when it's parked outside my workplace."


"Been working great since I installed it just over a year ago."

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"i want the best resolution camera back there, and the dual ones out there, including fitcamx, all have 1080p res. the viofo is 4k ... the last 5 cars have all had front and rear cameras, and at least 3 times we got punted in the rear, not once in the front. one time some dumbass ran in to us at the wendys drive thru. another was when we were stopped at a red lite."


"the starvis 2 sensor this has is great. I have both the older and newer viofo units, and the starvis 2 definitely makes a difference compared to the previous gen."


"I got it because of the Starvis 2 sensor which gives improved clarity in the dark. ... If anyone is driving at night I highly recommend any dashcam with a Starvis 2 sensor."

2

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"i want the best resolution camera back there, and the dual ones out there, including fitcamx, all have 1080p res. the viofo is 4k ... the last 5 cars have all had front and rear cameras, and at least 3 times we got punted in the rear, not once in the front. one time some dumbass ran in to us at the wendys drive thru. another was when we were stopped at a red lite."


"the starvis 2 sensor this has is great. I have both the older and newer viofo units, and the starvis 2 definitely makes a difference compared to the previous gen."

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"I also run the hardwire kit and keep my car monitored when it's parked outside my workplace."

Disliked most:

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"My Viofo A139 pro does not work on any of the cars USB-C connections tried many different cables none work ... my phone charged fine from all those USB-C connections with all the tried cables. ... When I measure the power when my phone is connected it can only pull 7 Watt."

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"it does not have a factory look like the fitcamx."

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"but they are expensive."

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"I don't trust them anymore with their built in capacitors that died."

Reddit Iconactual_nonsense 0.2
r/ChallengerDash Cam Suggestions
4 months ago

I use Viofo (specifically the A139 Pro but there are other options) and it's great. I have mine plugged into an external battery pack because I don't want to hardwire it. There's actually tons of good options now, dashcam technology has come a long way in recent years and there are some great quality cameras. There's also r/Dashcam for sample videos.

Reddit IconBazzaFox 0.2
r/drivingUKDashcam recommendations
4 months ago

I’ve had the VIOFO 139 Pro front and rear for a couple of years now and it’s been flawless. Easy to connect to it with the phone app and view or download clips. Has parking mode if you hardwire it with movement sensor and G-sensor plus time lapse recording.

Reddit IconbLu_18 0.2
r/ToyotaLooking for the Best Front & Rear Dash Cam with Notifications, Hardwire Option, and Solid Features — Recommendations?
6 months ago

Most dashcam enthusiasts recommend Viofo and Thinkware with the STARVIS2 sensor for the dash cam of choice. You may have to look into BlackVue for push notifications, as they have some cloud services. I personally run a Viofo A139 Pro hardwired into a Powercell 8 external battery that is hardwired into driver side fusebox for parking mode. The setup is about $500-600.

r/ToyotaToyota Dash Cams Recommendations
6 months ago

Viofo or Thinkware, and any dashcam equipped with the Starvis2 sensor, are the go-to for dash cam enthusiasts when it comes to picture quality and license plate reading. The most optimal parking mode setup, but most pricey, is a 2/3ch dash cam hardwired into an external LiFePo4 battery that is then hardwired to driver/passenger fuse box. This setup will provide parking mode and reduce the wear and tear on your 12v battery. If parking mode isn't something you need, you can just to the 12v accessory socket for normal driving dash cam use. I used Viofo A139 Pro and have installed Viofo A229 Pro on family's car.

r/ToyotaHow much did you all spend on dashcam setup?
3 months ago

Viofo A139 Pro (~250) + Powercell 8 external battery (~350) For front/back 4k images + parking mode up to 8-10 hours without wear and tear on the 12v battery.

Reddit IconBumbleboy92 0.2
r/DashcamDashcam Models That Are Known To Withstand Texas Summer Heat
about 1 month ago

Houston - I have two VIOFO A229 Pro’s and one A139 Pro on my cars. No issues besides formatting the card every month or so. Running them over 3 years now

Reddit Iconcaoimhin64 0.2
r/carsirelandDash cam recommendations
about 2 months ago

It's incorrect to assume that just because two cameras share an image sensor, that their performance will be the same, or even similar tbh. I have patents in camera testing, and to believe that firmware / software is **the main differentiator** for image quality after the sensor is totally wrong. FW/SW are important for sure, and as an example, one of the Sony image sensor developer guides I was looking at the other day had over 800 pages of potential settings, but outside of very specific applications, the vast majority of end users will keep 95% of them as Sony recommend - to the point they're simply not a differentiator between brands at any practical level. The Lens and ISP are *far* more consequential to image quality. Mechanical design comes close after that too, since they have to keep temperatures down. My A139 Pro (Sony IMX678) can't maintain 4K in warm temperatures even in Ireland, but my A229 with an identical sensor has no issues whatsoever in the California sun. As a further prime example of this, the IMX 335 in A119 V3 actually supports 60fps RAW, but the ISP, thermal management, or something else limits the full system to 30fps. Comparing image sensor part numbers alone isn't a comprehensive assessment, because other key image pipeline aspects can be limited by hardware, like bitrate or output formats. Lens MTF, chromatic abberations, distortion correction, stray light, aperture, lens alignment, and a *whole* lot more also have direct effects to image quality.

Reddit IconDiabolus_IpseSum 0.2
r/dashcamsWhat’s the best dash cam you guys have used and recommend?
3 months ago

Viofo a139 pro was the best dashcam I had until it stopped working one day. Now i have a viofo a329s and a rove r2 -4k dual

Reddit Iconelflegolas 0.2
r/ft86Recommended installation of DashCam in a 2016 Subaru BRZ?
8 months ago

Bear in mind the A119 would never be able to capture the plate if it’s not day time+ stationary, if it’s a hit and run guaranteed would not be captured, I went through thinkware x1000, A139 Pro( actually gd video quality no problem capturing plates on speed, but the 139 has a known cable issue that the rear camera might disconnect occasionally, switched to the newest a329s, cable issue is gone)

Reddit Iconi-hate-pigeons 0.2
r/aucklandDash Cam Advice
6 months ago

Another vote for Viofo - but the A139 Pro, and definitely get both front and rear. A cyclist hit me (yes, they literally cycled into my stationary, parked car), and it paid for itself in one insurance claim. I liked the fact it didn’t have a screen, which makes it much smaller and hide behind my rear vision mirror. I don’t even see it when driving. Mine is hardwired into my car battery, so it records when I’m parked and away from my car too, so I’m never worried about someone doing a hit and run when I’m parked on some crappy narrow Auckland street.

Reddit Iconlanikai45 0.2
r/Ioniq5Any solid rear dash cam videos?
12 months ago

i have a viofo a139 pro. it does not have a factory look like the fitcamx. however, i want the best resolution camera back there, and the dual ones out there, including fitcamx, all have 1080p res. the viofo is 4k, and it has a polarizing filter. i just used the acc port in the left side, and kinda stuffed the wire into the trim. i did pull the upper trim piece and used my dremel to remove some trim. the last 5 cars have all had front and rear cameras, and at least 3 times we got punted in the rear, not once in the front. one time some dumbass ran in to us at the wendys drive thru. who does that? another was when we were stopped at a red lite.

Reddit Iconmidri 0.2
r/MiataDash cams
21 days ago

I have an a139 pro which is literally perfect... But they're discontinued...

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