NEW! VIOFO A139 PRO [4K] 3 Channel Dashcam FULL REVIEW

In this video I will be reviewing the brand new VIOFO A139 PRO 4K dashcam. This dashcam has been updated with a 4K front camera (compare to the previous 1440p front camera). This is a 3 channel dashcam packed with all the important features you want. The front camera records in 4K, and the interior & rear camera records in FHD 1080P. It also has WiFi and GPS. I will go over everything you need to know about this dashcam so make sure you watch the entire video.
(NOTE: The front camera records in 4k resolution, and this video review was recorded in FHD, therefore the video footage you see has been downconverted from 4k to FHD. The actual dashcam recording is higher in resolution)
Watch VIOFO A139 Parking Mode Video
• VIOFO A139 PRO Install...
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[@cheta4949]

Been looking at getting a good dashcam for my new vehicle. Thanks for the detailed & comprehensive review. So far I like the VIOFO A139 Pro. Subscribed.

[@ranmas2004]

Need this up in Gwinnett county (and surrounding ATL area) because people here drive crazy!!! Definitely going to look into this!

[@sinthss]

hey, nicely done. Quick question did anyone tried to connect the av out to the cars Radio/headunit? Is it possible to see the video from the rear in my 9” screen? Best

[@constitutionalconservative67]

Great review! I own this Dashcam myself and the review is completely accurate..

[@tjam4229]

Nice job. Very comprehensive. 👍

[@dial2fast]

Glad you liked it

[@mpcp27]

Nice.. waiting for the next one reviewing the parking mode. Looking forward to see if it records all 3 cameras in the parking mode and if it includes buffered parking mode too. Thanks.

[@consideredthoughts1791]

According to what I have researched, this model has three parking modes, one of which is buffered.

[@dial2fast]

Coming soon!

[@susanmedia]

is there an option to remove the VIOFO logo?

[@RobH.]

I noticed you positioned the rear facing cam with one of the heating elements in front of the lens. I have a heated front screen, there are many more elements and no obvious place to position the front facing cam, where it would not be affected. Do you have any footage of how a front windscreen heating element looks on the forward facing camera?

[@EnriqueReyes]

Great video and nice product. Why was the rear camera video image flipped?

[@armstrong4358]

Hi, have you tried using the AV output port while the vehicle is in motion?

[@Kniccsta87]

The frequency option should also set accordingly to your current,whether 60Hz in the states or 50 Hz in Europe to avoid flickering from streetlights etc. Very nice review by the way 😉.

[@kushcam9347]

I just got this camera, but even after setting 60hz I’m still getting flickering on the internal camera. Any idea why?

[@ramenramrod]

Is there a reason you have to stop recording before looking at Playback footage?

[@NoDefectsOut]

Over heating issues since its mounted on the windshield?

[@shahaab]

What is connection type of the cable that goes into cigarette power adapter? Can the cable be removed/separated from the provided cigarette adapter or is it uniform?

[@VIOFO-CS]

It is detachable, not uniform. And it is a type-c dual USB cigarette car charger.

[@CathalMacDonnacha]

Really great review. I was looking for something that's more of a setup guide. I already have a hardwire in place with my old dash cam with a 2 amp fuse. I was wondering if the 2 amp will be ok to use with this front and rear dash cam?

[@dial2fast]

Yes 2A is more than enough. Most dashcams will draw about 250mA.

[@CathalMacDonnacha]

Thanks!

[@courierryan8698]

Been considering this over the Thinkware U1000, but I couldn't help but notice that it had that same exact startup chime as all of the other terrible Amazon dashcams. Makes me question its reliability. How would you compare it to the U1000?

[@hazelnuts23]

viofo is actually a good brand over other amazon dashcams

[@cghhgv2571]

just go for the u1000.

[@thunderbrother-inNorthAmerica]

Injustice bought one , it doesn’t come with SD card . Yours does ?

[@MikeSHA2009]

Hello, I bought the camera, but my smartphone cannot find the camera's WiFi network - it once appeared for a few seconds, then never again. A replacement camera has exactly the same error - smartphone recognizes other networks without any problems, my neighbor can't find a Viofo network on his phone either - does anyone know the problem?

[@suebow127]

I’m having the same issue with a Thinkware U1000 and I suspect it is not compatible with CarPlay but I don’t know how to turn off the CarPlay.

[@bbuggediffy]

The package of cameras looks very solid. But whst is the point of having a camera pointing at the interior? Taxi and Uber driving???

[@AlexRuzicka]

Question on the parking mode, I have a battery bank connected to my current dash cam, and when I stop driving, the parking mode kicks in automatically. I'ts not connected to my car battery or ignition. It uses sensors to detect the car is not moving. While this model do the same?

[@dial2fast]

Depending on who makes the dashcam, the way parking mode operate will differ. It sounds like the one you have is Blackvue which uses GPS, and motion sensor to activate/deactivate the parking mode. With this VIOFO, parking mode is triggered with ignition on or off.

[@yakobs_8534]

I installed a Viofo A139 Pro Trio camera on the car, and the interior camera, which also has night vision, I use to monitor the front of the car at night, but because of the reflection from the windshield, nothing can be seen when the IR is activated .Is there any film or anti-reflection filterto get rid of this problem?

[@dial2fast]

There is no fix for that. IR LED cannot face any glass surface.

[@richscott2483]

3 Channel hinders video quality, best the use 2 or 1 channel for 30 fps rather than 24fps. The Video appeared grainy with motion blur at Night, as not enough ambient light maybe or that the CPL filter was On/Off. Did you use the Static film or directly stuck the cameras onto the windshield and rear window? I intend to use Parking Mode so will require hardwire kit. Deciding on Viofo A229 Duo, A139 Pro, BlackVue 900X - Plus, or Thinkware U1000. The newer Thinkware Q1000 is a step backwards in performance and has other unresolved problems. Not sure about Viofo dash cams because all their models still have heat dissipation problems (overheating). BlackVue 900X-Plus is nice but not into Cloud. Thinkware U1000 was released in Oct. 2019 which has good video quality and is reliable plus an easy to use App. Maybe, I shall wait until Viofo A229 Pro is released later in 2023 as it will have STARVIS 2 for both Front & Rear camera's. There could be also an A139 Pro Plus (Pro 2) by October 2023.

[@Stallzyx]

Used A119 v2 for years without problems, it is more when you record at 4k resolution apparently but that's what you would want to do with this one. There's another review out there of this where the guy uses a thermal camera to show the readings

[@manuelvera8453]

Hi today i installed my viofo dashcam with the hardwired kit that is comming with 3 cables (Red "power", Black "ground" and Yellow "ACC")... ok is installed and working fine but now my question is; if the car is off because i am on the superstore when can start recording if the car is off?

[@VIOFO-CS]

It is decided by your setting. If you have chosen 90 seconds in Enter Parking Mode Timer, then it will enter parking mode after 90 seconds when your car is off. If you choose OFF in that setting, then it will enter parking mode within 3 seconds.

[@McDIY]

Do you have a recommendation for a 3 channel dash cam that also has wifi and gps like this one does?

[@jreyesops]

Great Video Thank You.......

[@consideredthoughts1791]

Can I please ask, how is that unit powered when not connected to the car. When you first unboxed and connected all the cameras together, it didn't appear to be in the car. Even so, the audio and functions of the unit worked Was the unit connected to the car battery at the time? Or was it already fully powered when you opened the box?

[@dial2fast]

When I film the product review, I connect the dashcam to a 12v power supply that I have in the room. This way I can test it and demonstrate all the features without trying to film it in the car.

[@and2409]

is so different from the 2k version?

[@neilwilliams4684]

14:16 - Why not just use one of the two USB ports just there?

[@dial2fast]

Because I am reviewing this dashcam and I am testing it with the power adapter that came with it.

[@CathalMacDonnacha]

When you downloading videos, can you download front, rear and interior separately? Or are they all embedded in one file? The sample you showed was just for front camera.

[@sorinul75]

There are separate files for front, rear and interior camera.

[@blablablachaa]

Can I use interior cam as a rear one?

[@dial2fast]

You should be able to but you will need to turn off the IR LED as that will reflect off the back glass and make the image not viewable. Keep in mind the image at night will be quite dark without much outside ambient light.

[@TheBlueFernando]

Hi. Did you remove the CPL filter at night? Or just left it? Does it affect the video during night driving?

[@dial2fast]

The CPL filter was left on at night. There is no need to remove it. The only thing a CPL filter will do is reduce the exposure a little bit. With all the glare from headlights and other light source at night, this is when the CPL filter will help with cutting the glare.

[@TheBlueFernando]

@@dial2fast thank you for your reply!

[@DeactivatedCharcoal]

IR spectrum glare might be an issue in some situations (military IR spotlight targeting your vehicle) ⚠

[@zanewalls8596]

Do you recommend 2 or 5 GHz setting?

[@DeactivatedCharcoal]

@@zanewalls8596 5 GHz can transfer a given amount of data quicker. Plus now-a-days many phones only offer 5 GHhz WiFi (I had to look for a really old phone just to setup a door cam that MUST connect via 2.4 GHz)

[@endoplazmikreti1kulum]

Correction: It supports up to 512GB capacity SD Card. Not 256 👍

[@zanewalls8596]

Which GHz setting do you recommend 2 or 5?

[@cghhgv2571]

5 of course

[@chibbyylol]

3:53 - Website says up to 512GB supported

[@Sensa-clrd]

I wonder if anybody tried

[@courierryan8698]

Are you able to swap from 3CH 4k 24 FPS recording to 2CH 4k 30 FPS? or does it only work if you buy the 2CH version? Are they different or does it just include the interior camera?

[@Stallzyx]

I am not too sure myself either, but it would be easiest to fill in Viofo contact form and ask. Let me know if you do or I might myself. To be honest the front camera video quality does get a bit worse if you use 3CH so I am considering maybe picking up two separate main unit systems, but I am not sure whether this is too much to power off one adapter

[@courierryan8698]

@@StallzyxHey! You can just disconnect the cable and it'll work as a 2CH. The other bundles just include the cameras. You can still get 30 FPS 4K in 3CH mode though, if you go down to 1600P. All you lose is a few meteors in the sky and your static dash!

[@stefanhenneken5415]

@@courierryan8698 I've seen a video that said that, if you press "long" that yellow button (I think it was), it will change from 3 channels to 1 or 2 channels. I am still waiting mine, so I haven't tested it yet. I've akso heard that more cahnnel, smaller bitrate and for night videos one or two channels are better than all three. Viofo made this (lowering bitrate) to keep the heat of the main units under control. (Sorry my bad english, not my native language)

[@davidbeckenbaugh9598]

I am watching this trying to figure out why I cannot get past the second or third screen. It is no help when things come up on your screen and you clear them out without telling us what they are or what they mean or how they affect the camera. My experience, right now, is that it keeps 'looping' through the 'connect the camera'. I have selected the camera through the 'settings'. The voice says that wifi is connected and the camera is connected. My next screen is 'connect the camera'. I need answers as to why I cannot get to a 'settings' menu on the camera itself. It says it is recording. Is it on a 3 minutes loop? Is the parking mode operational? Is the day and time set correctly? I have no idea. I cannot even view the pic from the dash cam. So frustrating to have so little info about how to set this up. And this vid is not really helping.

[@dial2fast]

This video is not helpful because it's not a troubleshooting video. If you have checked everything, you can try restarting your phone as sometimes that's required for Android phone. If it still does not work, contact the manufacturer for assistance.

[@ViofoDashcamOfficial]

So sorry for the unexpected issues. Do you mean that you cannot enter the app after connecting to the WiFi? Please make sure you have connected the wifi successfully. What phone do you use? If you use iPhone, please disable the VIOFO app from accessing the cellular on your phone, if not help, please set your phone to airplane mode. You will get a live view when you enter the app. To enter the settings, you need to pause the recording by pressing the round circle button. Wait for your result.

[@davidbeckenbaugh9598]

@@ViofoDashcamOfficial After several hours of work and help from some friends, we have got the system to the point of : 1) I cannot view the live stream 2) although we can see the individual files for every three minutes of recording, we cannot access them in my phone (I cannot remember the exact error message, but we played with it for quite a while with no success). I have not yet had the time to pull the card and see if they can be downloaded to my computer. I have had so many different cams over the years, and never had a problem doing that, so I will get to that in the near future. So at this stage, as long as the files are properly recorded and can recalled on my home system, I am good with that. Electronics simply don't work for me. Oh, and I have an iPhone 12 with the latest system updates installed.

[@ViofoDashcamOfficial]

@@davidbeckenbaugh9598 Thanks for your details. It seems that you have not connected to the wifi successfully. Have you tried our suggestion to disable the VIOFO app from accessing cellular data or set your phone to airplane mode? Can it help?

[@changtanghuang1101]

17:43

[@kovacevd]

Full review showing camera quality uploaded in lower 1080p quality why ??????

[@canoeshoe]

there's typically an airbag there on the A pillar so you want to pop it out and run the cables behind the airbag. This is a huge liability for camera installers who dont check where the airbags are

[@Samlol23_drrich]

Pop out the airbag??

[@newyorklove4u]

The T130 is just as good

[@Bacnow]

The general consensus amongst reviewers is that the T139 Pro takes the best 4k images out of all current dashcams because of IMX 678, STARVIS 2! The T130 lacks 4k and doesn’t feature the newest sensor, STARVIS 2, 5ghz WiFi! In 2023 you would be insane to purchase a new dashcam that is still sporting 6 yr old tech!

[@Stallzyx]

A139 Pro is a fair bit better

[@phatworkshop]

How long have you used this dash cam or did you just install it to review it? This is not a dependable or durable dash cam: kzbin.info/www/bejne/rpvIiWSngt9rbbs I've been using it for 2 years.

[@GoesSlow]

If you are in the left lane, and are blocking people, and folks are having to go around you, you should move right and let them by.

[@RoguePhysicist]

You should stay out of the left (passing) lane unless you are passing somebody.

[@mgp-bct7723]

The app it’s garbage junk 😢 Always problem connecting Wi-Fi. It doesn’t connect automatic. WFI Has to MINI glitches. :;( I got one too if I knew the app is junk garbage I want even buy the camera if you want to know if the camera is good, check app if the app is junk, the cameras is the same :(((

[@VIOFO-CS]

It is better to close the cellular data or set the phone to airplane mode when you need to connect the wifi. If you want it to connect automatically, you need to change the settings on your phone. Then your phone can connect to it in priority.

[@mgp-bct7723]

😮😢😢😢😢 VIOFO A139 Pro cam Junk cam three cases I got hit by a car couldn’t get access to my camera. I got access to my camera the video there’s some more I don’t know it shows me like five months behind the videos doesn’t show the video at the moment piece of junk 😮😢😢😢😢

[@enriquehernandez2110]

Don’t buy it is piece of trash, I bought one and in 3 months stop to work

[@cghhgv2571]

I ve purchased the dashcam. It’s not better than the rivals with half of this price. It’s a nice dashcam. Nothing special. It can only be placed in the passenger site as it can not be mounted upside down. It stopes recording in parking mode , cause it drains the battery fast . In a nutshell. One of the same. Nothing new. Nothing special. 😢😢 . The 4k is not really needed.

[@zanewalls8596]

This I know that this camera has the best sensor than just about any other camera on the market. So yes it's better than most

[@cghhgv2571]

marketing. much preferable a product that I wouldnt know the specs , that actually delivers. And this one does not. It takes much more than marketing for the sensor for a product , in order to deliver. anyways now I know ...

[@larrymabe1146]

Is it me, or does the rear camera video look reversed/flipped?