Kingslim D4 Dash Cam Review


New dash cam models are popping up like mushrooms after the rain, but after a recent incident on the road involving older family members, I went looking for a dash cam setup. simple but effective that they could use without a smartphone. They’re not exactly technically inclined so I didn’t want to use the usual type of wifi download setup for playback, I wanted something they could use immediately on the device itself if they needed video playback. After some research, I settled on the Kingslim D4 and opted for the package with a second camera (MSRP $139.99) so that the rear of the vehicle was also covered.

The Kingslim D4 has decent specs that compete well with other dash cams, including 4K recording with the 170-degree field-of-view front camera and 1080P (or “2K”) recording with the dash cam. back at 150 degrees. There’s a “G-sensor” for detecting impacts and recording GPS metadata so that exact locations are slipped into recorded video information. It can also record vehicle speed as an option. None of these features require a smartphone, but the D4 has built-in wifi and uses the RoadCam app for more advanced users.

Like many dash cams, the D4 also has “super night vision” and uses a Sony imaging chip, but the main feature that appealed to me was the large 3-inch IPS touchscreen (for a dash cam) and the simple user interface of the Kingslim 4D.

It took me about 30 minutes to mount and set up the camera, but that included running the second camera wire from the rear of the vehicle through the headliner using the upholstery pull tool in plastic provided in the box. Once powered up, it only took a few minutes to go through the initial setup screens and get the camera rolling. If you choose to use only the front-facing camera and the included 12-volt power port (formerly known as the “cigarette lighter socket”), you can have the camera running in about 5 minutes depending on effort. you want to put to hide the wiring. I also hardwired the camera to the car battery using a $12 accessory kit so it worked all the time, including “parking mode” where the cameras are on standby low consumption until an impact is felt.

The D4’s adhesive windshield mount is not horizontally adjustable, so it’s essential to place the eyeball when turning on the D4 using the lighter adapter cord before choosing a spot on the windshield. It adjusts vertically (up and down), and I caution anyone installing a dash cam to consider the full movement of the sun visors for added security. There is a quick release button on the bracket but it is very small and hard to push. The mount itself is sturdy, and for my purposes, I rarely need to remove a dash cam from my vehicles, but if that’s your concern, it can be done with a little practice.

The D4 boots up in seconds after being powered up and starts recording automatically, then automatically shuts off when the ignition is turned off. Like all dash cams, it records in ‘loops’, adjustable from 1 to 3 minutes, then deletes the oldest unlocked loop as the memory card fills up. I used a $20 128 GB U3 V30 micro SD card for video capture. Cards with a U3 V30 rating are the minimum needed to capture 4K video. The 128GB card will hold over ten hours of looped clips, which is plenty for non-commercial drivers. The D4 accepts cards up to 256 GB.

As shown, the Kingslim D4 has a large touch screen for operation instead of tiny buttons, and the operation interface is simple to understand and handle, especially for playing videos directly on the screen of the dash cam. The larger size of the touchscreen makes it easier to see the details of the video playback, and the screen is of good quality and clear, just like the optics of the cameras. The screen’s touch response is precise and fast. There’s a physical button: a power button on the side of the camera, and the second camera port and card slot are under a small rubber cover above it. As shown, the camera starts and shuts down automatically; users do not need to press the power button to start camera operation.

Video from the D4’s dual cameras is very clear and crisp during daylight hours, and decent at night, especially on streets with streetlights, but like any dash cam, video taken at night is a bit grainy. , especially if the only source of light is the vehicle’s headlights. Yet you have a clear idea of ​​what is happening in front of the vehicle. Although the video can be viewed on the D4’s screen, it can also be viewed via Wifi using the RoadCam smartphone app, available for iOS and Android.

There’s also a RoadCam desktop app for PC but not for Mac, although RoadCam also works on iPad if you want a bigger screen. RoadCam will also display GPS locations on a map as the video plays, and it can also stream the D4’s video live to a nearby smartphone or tablet (screenshot right) if it’s within range. WiFi signal range of the D4 (approximately 10 to 20 feet). It does not stream video over the Internet.


The Kingslim D4 performed well without any issues in a variety of conditions, including hot summer weather and cold Oregon fall mornings. Video quality in daylight is very good and on par with most dash cams in this price range (under $150), while video taken at night is acceptable while grainy, again on par with most offers at this price.

But the standout feature of the Kingslim D4 is that spacious IPS touchscreen, which allowed me to show my intended users how to easily operate the camera without a smartphone, which they don’t use. Fortunately, they have had no more incidents and the camera continues to work automatically, dutifully recording their movements and providing peace of mind should anything happen. It’s really all you can ask of a dash cam, and the Kingslim D4 offers the added benefit of a simple user experience that most people can quickly grasp without the need for a smartphone. Plus, the large screen is great for immediately reviewing recorded clips if something goes wrong. It’s a very good value and a solid performer.

Highly recommended.

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