Why is my apple 12 a single card?

Because Apple's 12 version is a dual card, if it is a foreign version, it is a single card. IPhone 12 adopts a brand-new antenna system, which improves the performance of 5G. Optimize the iOS system to take advantage of 5G speed while maintaining power efficiency.

IPhone 12 has an intelligent data mode, which can intelligently switch between 4G and 5G data speeds. Ideally, it can achieve a download speed of 3.5 switching bandwidth. IPhone 12 adopts a brand-new cover treatment named "super porcelain crystal panel" on the front screen glass, which improves the durability and anti-drop performance of the equipment by four times.

Brief introduction of parameters of iPhone 12.

IPhone 12 dual-lens rear camera system, equipped with 120000 pixel super wide-angle and wide-angle lens and 7-element lens; IPhone 12 supports 5G, is equipped with a 14 bionic chip, and supports Beidou navigation; The resolution of IPhone 12 is 2532x 1 170, the contrast is 2 million: 1, and the brightness is 1200 nits. Apple updated the camera system of iPhone 12, and adopted a12 megapixel wide-angle camera with a larger aperture. Using the seven-element lens for the first time can improve the low-light performance by 27%. Super wide-angle and front camera also support night mode.