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Which is better, Gefei navigation or crew navigation?
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Gefei navigation now has navigation of Android system and wince system, while CAST only has wince.

Gefei 3G quad-core intelligent navigation is based on Qualcomm chip, Kailide, Baidu and Gaode. Qualcomm chip is the lowest power consumption and the most stable processor in the world. This chip is used by big mobile phone manufacturers. Casta uses tunnels to deliver maps.

Gefei adopts capacitive screen five-point touch technology,16 million color UHD screen, and 1024X600 resolution. Castar is an 800*480 common resistance screen, which can only be clicked when ammonia is pressed.

The stability of car navigation is very important, which involves earthquake resistance, high temperature resistance, low temperature and other environments, including circuit design, mold design, sound quality and so on. They are all top in the industry.