Background refresh takes up memory, which is easy to cause the phone to heat up.

IPhone8Plus is a mobile phone product released by Apple at the Apple New Product Launch Conference held at Steve Jobs Theater in ApplePark in the early morning of September 17 (Beijing time). IPhone8Plus has four special editions of gold, silver, dark gray and red, which are divided into three editions: 64GB, 128GB and 256GB. The screen is 5.5 inches, and the glass surface design is used instead. IPhone8Plus adopts retina HD display,12 megapixel wide-angle and telephoto dual-lens camera, supports wireless charging, and has Apple's A1/processor and touch ID. IPhone8Plus is equipped with12 megapixel dual camera, with a large aperture of F 1.8, and adopts a brand-new lens module. Video shooting supports 4K60 frames. The flash has added "slow synchronization technology" and the front camera has 7 million pixels. IPhone8Plus rear dual camera focuses on machine learning portrait background blur shooting, supports 4K video shooting with 60-frame code stream, supports wireless charging, and graphics sensor adds support for ar technology.