There are all kind of dash cams in the market , it ‘is easy to select and buy a high quality dash cam if you choose carefully. Here are some ways to buy a dash cam:

1. The video quality of the dash cam 

The clarity of the HD dash cam is important .The car recorder loses its value, because the picture from the dash cam isn't clear .Currently, the resolution of the HD dash cam is above 720P. In general, the resolution of HD dash cam will be able to see the license plate at 1080P.

2. The night vision of the dash cam 

Acrooding to the ability of night vision, we can evaluate which the brand of dash cam is good . The key to the night vision of dash cam is the ability to analyze the lens and the processing power of the processor. The price of a car is less than 500 yuan, and the night vision quality isn't very high.we should pay attention to some picture of the dash cam which will is taken out by 700 yuan and only it is saled about two hundred and three hundred yuan.

3. The function of the dash cam 

A reliable dash cam should be equipped with the functions of gravity sensing, recording and closing, circular recording and so on. Some dash cam brands have added a lot of flashy functions to attract consumer,such as bluetooth, GPS positioning, flow speed and other additional functions.

4. The wide angle of the dash cam 

In theory, bigger is better. However, the larger the wide angle of the driving recorder, the more serious the deformation. With a wide angle of over 90 degrees, the picture begins to deform.It is not ture that maximum wide Angle reach 180 °that the seller consider. If so, the picture can be very distorted. So experts recommend to choose between 140 °and  170 °.

5. The sales evaluation of the dasm cam 

If you prepare to buy a dash cam online , the best way is shopping around of their sales recorder and rate.It is the most simple and effective method to judge the quality of dash cam .

6. The missing second signal of dash cam 

Some consumers buy low-priced driving recorders and reflect the problem of missing seconds and interfering with navigation signals. It is general phenomenon that the price of dash cam below 300 yuan have sone problem of missing seconds and interfering with navigation signals ,so we should pay more attention to it when we purchase.

It is not difficult to find that the dash cam is used in more and more cars. In the case of traffic accidents or accident disputes,the dash cam provide evidence for traffic accidents to prevent the racketeer and unclear responsibility identification.However, the market of the dash cam is in the early stage of development, so it lacks norms. Therefore, when we buy dash cam, we don’t blindly listen to the merchants’ propaganda and also compare mostly.