12% of 142 verified VIOFO A129 Plus Duoowners don't recommend it, and 1 describe specific problems — based on real owner comments from Reddit, enthusiast forums, and YouTube.
For balance: 77% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score
“I have Viofo A129 Plus Duo and while I’m very happy with the recording quality, the app simply does not work and the OEM hardwire harness kit (which is the only brand that works with this camera) has horrible quality and will die on you within a year. For those reasons I’d recommend staying away from viofo.”— hatsoff22u on Reddit
“DO NOT BUY. Stops recording for MONTHS at a time!”— @PatH902101 on YouTube
“I'm dissatisfied with the A129 Plus Duo I got”— @IstasPumaNevada on YouTube
“Viofo dash cam is last sh*t - I had two and both are defect after no a year”— @vitalyk7122 on YouTube
“I have tried 2 new VIOFO A129 Plus Duo a few years ago and worked with the dealer for 1 month trying many things from firmware change to sd card change and wiring and ... , the continuous recording would work for a few hours and then it will stop completely.”— Octavian196 on Reddit
“It’s silly it only a connection for the front power camera making the rear camera connection prone to breakage from removing it every time.”— @benefactionhindrance on YouTube
“I have the A129plus Duo installed in two cars. One had some minor issues early on but has worked without issue for several months now using a non-High Endurance SD card from either Samsung or San Disk.”— JaredNorges on Reddit
“If you are going to go with viofo then stay away from the A129plus duo, it's a shit cam and gave me nothing but issues.”— Phenotype1033 on Reddit
“If you do get this and decide to hardwire it to the car, get the Rexing hardwire kit - the viofo ones kept malfunctioning on me. Had to replace them twice within a year or so before getting the Rexing kit, then the issues stopped.”— Ok-Supermarket-1414 on Reddit
“I was close to buy A129 plus but is not very good i see, the A229 is better in parking mode and other things”— @Geo_Sma on YouTube
“My Viofo camera is fried and now longer works. The GPS module is 100% broken and the side power inlet is in and out with being reliable.”— ItzMonklee on Reddit
“Out of the box it was constantly dropping the rear connection, I spent a lot of time emailing support (who were helpful) but eventually solved it myself as a shoddy firmware.”— Mudcaker on Reddit
Not complaints — practical notes from owners that didn't affect the score.
“I currently have a [VIOFO A129 plus duo](https://viofo.com/dash-cam/197-a129-plus-duo-dual-channel-dash-cam-front-2k-1440p-rear-1080p-5ghz-wi-fi-gps-dash-camera.html) that is wired for parking mode.”— TinyTurboAbarth on Reddit
“Mine, Viofo a129 Plus Duo, doesn't catch my voice for some reason. Though it does catch the difference in closing the door and slamming the door.”— Accomplished_Ad7106 on Reddit
“My only complaint is that the VIOFO app **fucking sucks.**”— night-shark on Reddit
“I have two, one in my car and farm truck. The one in the car is 4 years old. The rear camera started to have weird purple color hues in the feed. I’m assuming the rear camera lens is starting to go out.”— DroneRtx on r/Dashcam
“Even though the A129 Plus Duo sensor is slightly newer/better, the overall video quality is similar (low-light video is hard and optics & microprocessor & firmware & codecs & form-factor & cost are nearly identical).”— Cxienos on r/Dashcam
“I had this for 4 years. Pro tips if it is working DO NOT TRY TO FIRMWARE UPGRADE IT. I bricked mine. And had to buy the same one again.”— houdini1582 on r/Dashcam
“Yes, it still happens. But it happens so intermittently that makes it more a annoyance than show stopper.”— pctopcool on r/Dashcam