The constant partner of almost every motorist – a DVR – is represented by a variety of models that differ in functionality and design. In turn, the price for an affordable and advanced model can vary several times. Is the overpayment worth it? Let’s try to find answers in this material.
The quality of video recording directly depends on the lens, processor, matrix and resolution used. High-end DVRs tend to use higher-level components that provide a more detailed and high-quality “picture”. Each of these components must match each other, because. a conditionally bad matrix can neutralize the advantages of a high-quality lens.
The most common is Full HD resolution . In expensive models, you can often find SuperHD, QHD and 4K formats, which offer the user the highest frame detail. Such formats, as well as several simultaneously connected cameras, impose high requirements on the processor and memory subsystem. In this regard, advanced models support more capacious memory cards, and their “stuffing” is able to process heavy videos without any quality loss.
It is worth recalling that a high-resolution video can be achieved not with the help of a high-quality matrix, but programmatically, which some manufacturers use indecently. Those. by simply stretching the image to the required size, which in turn affects the final detail.
Functional sensors are another element of expensive models. For example, a motion sensor . With this sensor, video is recorded when there is any movement near the car. If there is no activity after a set period of time, the dash cam will go into sleep mode to conserve battery power. And selective recording, which captures only certain frames, instead of continuous, saves space on the drive. Models with a built-in motion sensor are characterized by a capacious battery, and this is not surprising, because. they can work in a muffled car.
G-sensor, which protects data recorded in an emergency, is available in the vast majority of models. But in advanced devices, the user has more options for adjusting its sensitivity. This allows you to more accurately calibrate it, thereby reducing the risk of false positives and overflow of the memory card.
Also, advanced models use more complex software. In addition to the standard settings, the user has additional options available in the form of adjusting sharpness, exposure, etc.
3 in 1 devices
Advanced 3 in 1 models are hybrid devices that combine the functions of a DVR, a radar detector and a GPS module. Accordingly, their price is the sum of the approximate cost of similar modules sold separately. In addition, hybrid devices save space on the car’s dashboard.
The radar detector notifies about stationary and portable radars, capturing the radiation emanating from them. The GPS module can mark location and speed data, and can also be used as navigation. Also, GPS can be used to locate cameras if the appropriate database is available.
The most budget models can capture a frame in the dark, but the detail of the frame can negate all the efforts made. Models with night shooting mode allow you to get a “readable” picture without a strong loss in quality, but they are also more expensive.
The night shooting mode is implemented using a high-quality matrix, various software methods, as well as fast lenses and infrared LEDs. This implementation allows you to capture events in the most unfavorable circumstances for shooting, for example, in bad weather and poor street lighting.
The presence of a capacious battery is of great help when it is necessary to disconnect the device for shooting outside the car or, for example, to record events in a parking lot at night. In this case, the DVR turns on when motion is detected and records a video without connecting to the network and without the participation of the car owner.
The presence of this device in the registrar can greatly affect the price of the device, compared with models that have only standard power from the cigarette lighter.
Type of mount and number of cameras
According to the type of mounting, DVRs can be divided into two main categories: those that are attached to the rear-view mirror, and those that can be placed in any convenient place. Fastening can be implemented in the form:
3M adhesive tape – the device can be placed on almost any surface, be it glass or plastic. It is stable, but it will be problematic to remove the registrar – there are remains of glue left, i.e. Essentially, it’s a one-time mount.
suction cups – easy installation on glass, as well as dismantling. The disadvantage is the reliability of fastening. If the temperature drops or frequent driving on poor road surfaces, the suction cup may spontaneously peel off.
These two types of mounts can be used in both expensive and cheap models. An attribute of more advanced models is a magnetic mount. The base of the registrar is attached with 3M adhesive tape or suction cups, and the registrar is directly attached to it using magnets. This mechanism allows, if necessary, to quickly disconnect the registrar without fiddling with the mount.
The cost of the device is also affected by the number of cameras in the kit. These can be cameras in one housing – one that captures what is happening in front of the car’s hood, and the other inside the cabin, or separate cameras that are installed in several places, for example, on the rear bumper to control when parking.
Among expensive DVRs, you can find devices that have additional features that are useful in most cases only on paper. For example, touch screen. In conditions of an essentially tiny display, touch control is inconvenient, plus it is more prone to mechanical damage. The presence of HDMI is also not a big plus, because. only a memory card is used in the proceedings.
The cheapness of the DVR is primarily achieved by the low quality of the optics. Even the simplest models can record a traffic incident, but they are hardly suitable for viewing detailed details. Models with 3K and 4K resolution will be redundant for most users – Full HD is the “golden” mean, but keep in mind that the resolution can be achieved by software. When choosing a model , it is worth studying the reviews and examples of shooting a particular model. As for additional functions, most of them perform very specific tasks that will be very useful. The main thing when choosing a DVR is to take into account the specifics of your car use in advance and not overpay for functions that you will not use.