Yes, you can usually take your old SIM card and put it in your new iPhone to keep your phone number and cellular service, but you'll need a SIM eject tool or paperclip to move it, ensure the new phone supports your SIM size (like nano-SIM), and check with your carrier if you're on a restrictive plan or need a new SIM for 5G. For iPhones 14 (US models) and newer, you might use an eSIM instead of a physical SIM.
When you insert your SIM card into another phone, you transfer that information to the new device. Your phone number does not change when you transfer phones using your SIM card because your number is linked to the SIM card and the mobile network rather than the specific phone.
Remove and Deactivate Your eSIM
Before inserting the physical SIM, you'll need to remove and delete your eSIM and its profile on your iPhone. Go to Settings > Cellular, then tap the eSIM you want to remove.
After you've removed your SIM card from the tray, notice the notch in one corner of the new SIM card. Place the new SIM card into the tray – it will only fit one way because of the notch. Then insert the tray into the device completely and in the same orientation that you removed it. The tray also only fits one way.
Transferring or copying personal user data from one phone to another should not require a SIM active. It can actually make for a more seamless transfer if a SIM is not present - if you want a new phone to have your existing user data installed first.
To transfer data to a new iPhone, use Quick Start by placing devices together for an automatic setup, or choose iCloud Backup during the new phone's setup, logging in with your Apple ID to restore from a recent backup, with apps and data downloading in the background. For a wired method, connect both iPhones to a computer and use Finder (Mac) or iTunes (PC) to transfer a backup. Ensure both phones are charged and connected to Wi-Fi.
If all your data is stored in your SIM card, removing the SIM card from your device will mean that you cannot access the information that was originally stored in your SIM card.
If you have an activated SIM card from your desired carrier and it is the correct size for the unlocked phone you purchased, then yes, you will most likely be able to put your SIM card into the device and it should function normally. You will continue to use the same phone number you did previously.
The shorter answer is: no. Taking out your SIM card will not delete all of your data. Everything important is already saved to your phone (or iCloud, in the case of an iPhone).
Before you switch SIM cards
Make sure that Wireless Account Lock is turned off. Make sure the SIM cards for both devices are the same size.
Your photos, videos, contacts, apps, ringtones… everything else that isn't your phone number, will still be on your phone after you remove the SIM card.
How to check if an Android phone is unlocked
Switching your SIM card doesn't affect your photos at all or anything else on the phone or your cloud. Just take the old out put new in and restart your phone.
A SIM contains a unique serial number, integrated circuit card identification (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and four passwords: a ...
And what it does not carry: Photos, apps, messages, or downloads. Your full contact list (unless you've manually saved it to the SIM) Account settings or cloud data.
Three-finger gestures on iPhone primarily activate accessibility features like VoiceOver (for screen reading and navigation) and Zoom (magnification), allowing scrolling, zooming, and text manipulation (copy/paste/undo) with specific taps and drags, though some text actions work without VoiceOver enabled for quick editing. Common gestures include three-finger double-tap to toggle VoiceOver speech, triple-tap for the screen curtain, and pinching/spreading with three fingers for copy/paste actions, notes this YouTube video.
Call barring allows you to block certain types of incoming or outgoing calls. Dialing *#33# displays your device's current call barring status. If you're receiving excessive spam calls, enabling call barring can help prevent unwanted calls, including those from potential hackers.
Yes, you should put your physical SIM card into your new iPhone before starting the data transfer for a smoother setup, as it gives your new phone immediate network access and carries over your phone number, though it can technically be done after. It's a good early step in the "pre-transfer checklist" to have your SIM in the new device before you begin the Quick Start or restore process from your old phone.
The fastest way to set up a new iPhone is using Quick Start by placing it near your old iPhone, which automatically transfers settings and data wirelessly, or by choosing the quicker "Download from iCloud" option during setup, allowing background downloads for immediate use. Ensure both devices are updated and connected to power and Wi-Fi for the best experience, keeping them close until migration finishes.
To transfer everything to your new phone, charge both devices, connect to Wi-Fi, and use the on-screen setup prompts to copy data wirelessly or with a USB cable from your old phone (Android to Android) by signing into your Google Account and restoring a backup or directly transferring apps, contacts, photos, and settings, with app-specific data like WhatsApp often needing separate in-app backups.