Can an Apple phone support dual SIM cards and dual standby?

Apple mobile phones have only started to support dual-SIM dual standby in 2018. iPhone XS Max is the first model to support dual-SIM dual-standby function.

Use dual-SIM function through two nano-SIM cards. In China, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS Max and iPhone XR support use through two nano-SIM cards. Dual SIM function. Both phone numbers can be used to make and receive calls, as well as send and receive text messages.

GSM model iPhones use a SIM card to identify the phone on the GSM network. The SIM card for the first-generation iPhone, iPhone 3G, and iPhone 3GS was placed in a tray in the slot on the top of the phone.

A SIM card opener or a swastika clip can open the SIM card tray. The SIM card opener is a simple liquid metal slice that comes with the purchase of an iPhone.

Extended information:

By default, the main screen includes the following icons: information, calendar, photos, camera, stocks, Safari browser, map (Amap or Apple Maps), weather, voice memos, notes, clock, calculator, settings, iTunes Store and App Store, iOS4/4.1 adds compass and FaceTime for iPhone 3GS and iPhone 4 respectively.

Users can also add or delete icons on the Dock on the home screen. Each layout of iPhone3G, iPhone 4 and iPhone 4S can accommodate 20 icons (the icons on the Dock are also included). Since iPhone5 has The screen is larger, so it can accommodate 24 icons. Users can turn left and right to turn pages, but the icons on the Dock will not move accordingly.

Users can move and delete third-party applications at any time by long pressing them, and can transfer certain selected applications from iTunes. However, Apple's default programs cannot be deleted. The 3.0 update adds a system-wide search function, Spotlight, located on the left side of the first home screen.