VIOFOA129 Pro 4K Dash Cam 3840x2160P Ultra HD 4K Dash Camera Sony 8MP Sensor GPS Wi-Fi, Buffered Parking Mode, G-Sensor, Motion Detection, WDR, Loop Recording (A129ProDuo) (A129Pro front camera)

The front cam is excellent and does the job well. For the rear cam the exposure needs to be adjusted if you have a window tint

It's a camera designed for recording while I drive so I dont need to be aware of its presence. Although it's small, the recording quality more than justify the price tag. The video clarity is very high that you can make out the license plate number of the car moving in front of you when zooming in a little. I like that it has 5 Ghz wifi connection so I can download video from the memory card faster than other cameras with only 2.4ghz wifi. The gps is an extra function, nice to have but not a necessity if all you really care about is recording your driving in the city, but can come in handy to determine your exact longitude and latitude when you have an accident outside city limit without street names and need to give emergency your exact coordinates. Overall a very nice camera to have installed and forget, but will remind you it's there when you turn on your car and hear its start up chime.

On some review website, someone "claimed" to have tested this product's power consumption (I'll get to why this is important) and including the GPS module and back camera, it was supposed to consume around 3.1W of power at most.Quality of the front and back camera seems good, as this is my first dashcam for my car, I have nothing to compare it with, I was recommended here by Youtuber reviewers (LTT).The problem, I bought a 50Wh battery assuming it would consume 3W, set it up at 10pm at night for parking recording. Next morning at 11am, DEAD battery.My reaction was like "WTF", power consumption should be about 90% loss, so I should have a 45Wh, which should be around 15 hours MINIMUM with a 50Wh battery. Then I had to get out my tools to measure the ACTUAL consumption. It wasn't 3W or 3.1W, nowhere close. I ensured the dashcam was setup to parking mode, and waited for atleast 10 minutes sitting inside the car, in a garage with no one else. The camera would waver around 3.9W to 4.1W, most of the time at 4.1W. Doing nothing. Since park recording ONLY records when there is movement it was still burning 4.1W. I even disabled the GPS module, didn't matter much, still consumed a little over 4W.This required some massive innovation, or lack of. I refused to hook to car battery, so I had to get a 100W PD capable lithium ion battery at the size of 99Wh. I couldn't use LiFePo as they came in 70Wh, and costs about $400 EACH. (Life expectancy of LiFePo should be about 4+ years, Li-Ion would be 2+ years, 1500 cycles vs 500 cycles)Even with the 99Wh battery, I killed my battery in under 20 hours. I ordered another, hooked up a Y usb connecter. With two 100Wh hooked up to 200Wh, I had about 40 hours of power before it dried up.Why use 100W PD? Because 100W PD charges 80% of the battery in about one hour from a 100W charger for a 99Wh capacity. (batteries trickle charge after reaching 80% mark). Anything slower than an hour is no good because my driving sessions are regularly around 40 minute mark.All this work, just because this camera consumes a lot more power than expected. (25% extra power consumption is nothing to sneeze at.)

I just bought an A129 Pro Duo to replace a Mini0906 (that thing was NOT one of the best cams like dashcamtalk claimed, but was a complete turd).=== Let's get the negatives out of the way:On the A129 Pro Duo, the wifi feature is not broadcasting. I have tried 2.4GHz, 5GHz auto, and 5GHz forced to channel 40, and 5GHz forced to channel 36, and forced to 161; the SSID is never broadcast. As the MAC is not listed on the device (SHAME ON YOU, VIOFO!), I checked for new APs without an SSID and toggled wifi on and off, and no new MACs showed up, so it appears wifi is totally nonfunctional.It is otherwise a fantastic unit and I will be updating the review after I test night recording. I'm docking four stars as one of the reasons I bought this unit was wifi connectivity, and yet, I will be forced to pull the microsd card and use dashcamviewer to review footage. WTF, VIOFO? Fix the firmware please. Docking four stars for this.Also, Mini USB connectors? Why not USB-C? WTF? If you had used USB-C I could have prewired my car before the camera arrived.No volume setting for that infernal beep? Only On/OFF? I want the beep, I just don't want it to be eardrum-piercingly and nerve-gratingly loud. Do us a solid and give us a volume control for the beep, please, even if it's just "LOUD - MEDIUM - SOFT - OFF"And, why not a full kit which includes the hardwire kit, bluetooth remote and polarizing filters for both the front and rear cameras?OK, so with all the negatives that garnered a 1-star rating (only because I could not rate it zero) out of the way:=== Positives1. IT HAS A SCREEN! I skipped the Thinkware U1000 because even though it's objectively a better product, I wanted an integrated screen in case WiFi fails2. DAY, FRONT Video quality is GREAT - at least in daylight (I will update this review over time).3. It is easy to install4. I like that there is a prewiring kit and a customizable parking mode (again, I will update this over time)5. I like the visual recording, wifi, and mic LED indicators so I can check without having to wake up the screen6. THANK YOU for implementing a screen timeout/"screen saver" feature. With most dashcams with screens, I need to manually turn the screen on and off. It's nice being able to tap a button and check status and let it time out and turn off on its own7. I like that it's low profile and will not interfere with the visor as much as other models do.8. I like the faint LED in the GPS mount; with the camera pulled off the mount, I can see that the GPS mount is receiving power9. I like that WiFi can theoretically be toggled on/off with the overlay button (I say theoretically because WiFI actually doesn't work at all)10.=== Suggested improvements: * Switch over to all USB-C connectors * Support 1TB+ MicroSD cards * Allow your app to read MicroSD cards (since wifi doesn't work at all) * Implement a more active cooling scheme (phase changing heat pipe + maybe a fan) * Cloud recording/storage/vehicle tracker/locator connectivity: Cloud connectivity? (I'd subscribe for $5 to $10/month if you would archive 30+ days of coverage and allow easy merging/exporting from the cloud - this would be a nice recurring revenue stream for you) * Car locator feature (easy with GPS + cloud connectivity), with live view * Android Auto/Carplay integration to use rear channel as rearview mirror in infotainment for those of us who drive vehicles with useless back windows (sportscars, trucks, etc.) * a full kit which includes the hardwire kit, bluetooth remote and polarizing filters for both the front and rear cameras? * 3 channel support * higher quality sensors both front and rear <---<< * flip screen or android auto plugin to display either channel, use rear channel as supplemental rearview mirror view=== Update day 2:I haven't recorded any footage for a review/sample video yet; I have been playing with parking mode settings and H.265 vs. H.264 and when I used H.265 and let parking mode run overnight and retrieved it in the morning, the camera was so hot it felt scalding - it hadn't been in the sun yet and the car interior was still cool. I did not have my IR thermometer handy so I did not actually measure it but I'd guess it was 70c at the very least. I was nervous letting it run in my Stinger so I disabled H.265 and reduced the video bitrate from maximum to high.Resolution maximum, WDR enabled, bitrate Maximum, EV = 0, rural/light suburban roads:Reviewing day footage on 4K screen w/Dashcam Viewer, I can easily read license plates of cars I am following. It is very difficult to find any frames where license tags of oncoming cars are readable. However, nighttime capture of registration tags are not readable. There is much blooming which of course obscures much of the scene.Rear channel, 1080p:Reviewing night footage, WDR enabled, bitrate Maximum, EV = 0, rural/light suburban roads:License tags of oncoming and following cars unreadable. Rear camera underexposed, difficult to make out detail on rural roads, cannot read following vehicles' plates (expected). Basically, meets expectations, provides some protection.== ExchangeVIOFO want me to send the camera in for exchange. If it comes to that I'll do an Amazon exchange, returning the replacement box with the old camera since I had already installed the cables and tossed the package in recycling. I was hoping they'd come back with "Oh the firmware is buggy and here's an update" :-( On the bright side they respond fairly quickly.=== Corrections to previous complaint:Time DOES appear to update automagically via GPS.=== Update: ===I received a replacement - I submitted a support ticket and they made the exhange super easy, with advance shipment of the dashcam. I am pleased to report that the wifi features work on the replacement camera. I am happy with the unit so far. The high temperature does concern me a bit though.=== Update 15 months later: ===Unit is under the extended warranty (I had to register it because the original came DOA). I was previously very happy with it but now the camera is freezing when powered through the integrated USB port. When powered through the GPS module/mount it functions fine - NO freezing, but the unit runs hotter and drains the battery quickly when powered through the GPS mount (this is a common problem discussed on messageboards, mentioned in a couple reviews here, etc.). Well, they tried to blame the USB cord (uh, no, I am using the hardwire kit), or the SD card (I already indicated I write/read tested the SD card using both Windows and Linux, so the SD card is not the problem), or parking mode (No, I will NOT turn off parking mode, as that is THE feature which prompted me to select this product).As such, all the way down to 1 star because their customer service has declined and they're obnoxiously patronizing with their canned responses.=== Another update, a few days later ===I just learned they are off for Chinese new year. With that in mind, I can only conclude they took the time to try to lend some support during the holiday so I am restoring my original rating of the product, and I humbly apologize to Viofo for my jumping to conclusions.

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Purchase based on review by 'Vortex Radar' (YouTube). Very pleased with the unit. Easy install, easy to remove unit when the need arises. Best insurance against fraudulent claims, and unbiased capture of events.