Can I use 2 esim on the same apple ID

First, you should NOT be sharing an Apple Account with someone else. That said, each phone can use multiple eSim's.

Read this --> Make sure that each family member has a unique Apple Account - Apple Support

Here is a link from a very respected member of this forum about how to unshare an Apple Account --> How to “unshare” an Apple ID - Apple Community

Once you are "unshared," you can then set up Family Sharing to share content with each other --> How to set up Family Sharing on your iPhone, iPad, or Mac - Apple Support

namtamle wrote:

Can we share apple ID when we both use iphone 16 with esim

Yes, but that is not the best way of using your account. Each person should have their own account because later dividing an account can be complicated.* You omit to say what exactly you plan on doing with this configuration. This might be a scenario where having two people are using a single iPhone, but you may find that to be unsatisfactory. Dual eSIMS mostly come in handy where one person may need two lines, such as when having a business line and a home line. If you are two people using a single iPhone then there wouldn't be any point in having two accounts since the iPhone could only be signed into one account at a time and it isn't easy signing in and out frequently.

• If you do want to split an account, this support article describes how to create a new, non-child Apple ID = create an Apple Account. --> How to create a new Apple Account - Apple Support

Apple has no formal entire account merging or transferring process. The things below will help you in doing ongoing or one-time transfer of as much as possible from one account to the other. In February, 2025 Apple started allowing purchases to be migrated to a different account. This is not available in all countries. If you do wish to migrate purchases, Apple has several lengthy and detailed articles about doing this, including limitations:

- Purchases can be migrated from a secondary to a primary Apple Account to consolidate them. (This feature isn’t available to users in India.) —> Migrate purchases from one Apple Account to another Apple Account - Apple Support

- Learn about what purchases and associated content can be migrated between two accounts. —> About migrating Apple Account purchases between accounts - Apple Support

If you cannot migrate your purchases, look into using Family Sharing to continue to be able to use items purchased with one Apple account with other Apple accounts, and for some data sharing features.

- Family Sharing - How Family Sharing works - Apple Support

- Set up Family Sharing - How to set up Family Sharing on your iPhone, iPad, or Mac - Apple Support

You can use various iCloud sharing features for some ongoing data sharing.

Share folders with iCloud Drive --> Share files and folders in iCloud Drive on iCloud.com - Apple Support

Read How to use Shared Albums in Photos on your iPhone, iPad, or Apple Vision Pro - Apple Support about how to share photos.

Sharing music playlists —> How to share an Apple Music playlist on your iPhone - Apple Support

While Apple’s purchase migration documents say you cannot transfer iCloud data, you can probably still do that as a separate process. The next section may sound tricky but it lets you merge some things on a device where you have already signed in with an old account but want to use a new account and incorporate data that is already on the device from the old account. Incidentally, the data will then propagate to other devices using iCloud with that new account. (I haven't tried this with a computer but it may also work with a computer account signed into an old account.)

If you have signed into the first Apple account on a mobile device (but maybe also on a computer?) then fortunately when you sign out of that account it asks you if you wish to retain the data from the old account on your device (toggle the ones you want to on). If you keep data on the device then when you sign in with the other account it will merge this data with the account signing into the device. You can later delete individual items from the old account that you do not want. Similar information can be found in this post: I have 2 apple IDs i want to merge them h… - Apple Community , and a step-by-step in this User Tip: How to “unshare” an Apple ID - Apple Community . Note that only content physically present on the device such as contacts, photos and videos will be retained. Meta data such as a game play scores that are tied to a specific account or are only on a vendor's Apple Account-specific database remotely will not be retained. Also turn off storage optimization before doing this. With Optimize Storage, smaller, space-saving photos and videos are kept on your device while all of your original, full-resolution versions are stored in iCloud. Make sure photo optimization is turned off so the full quality versions from the old account are actually on the device before merging the content into your new account. Manage your photo and video storage - Apple Support You can turn optimization back on again once you are fully using your new account on the device.

It used to be that apps would remain on a device and would work for a while, you would not be able to update them or redownload them unless you bought them again with the new account or download them with the new account using Family Sharing. If you use purchase migration feature this may help with this now.

Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac --> Sign out of iCloud on your devices - Apple Support

If this involves a device changing ownership, the person should also change the ID set in Find My. Turn off Find My on your devices and items - Apple Support

If another Apple account is signed in you may need to enter the password for that account to sign out of that account first.

Click on this link to learn how to 'Sign in with your Apple ID' --> Sign in to your Apple Account on the web or in your device settings - Apple Support

You should not be sharing an Apple ID with anyone for any reason whatsoever.

Each of you should have your own Apple ID. They are free, there is absolutely no reason to share one.

Limnos wrote:

If two people share an iPhone then there is no point is setting up a second Apple Account. Sure, you can but you couldn't use more than one and swapping between them would be hugely problematic.

Nowhere does the original question suggest they are sharing an iPhone, just wanting to share an Apple account. I assumed they each have their own iPhone 16. As otherwise it's a stranger question to make, as you have no other real usable option as you point out.

It's not unheard of for people to try to share an iPhone, but it's not very common, and its almost never a good experience and will cause issues, as all messages and calls will get mixed up. Along with all other data.

Sharing an iPhone and an Apple ID is hardly ever a good idea.

I am not debating about good ideas or not. I simply am trying to work with what the OP said. Some statements can be interpreted in multiple ways: "when we both use iphone". "iphone" as in a single iPhone; or did they mean "iPhones" as in your interpretation??

If two people share an iPhone then there is no point is setting up a second Apple Account. Sure, you can but you couldn't use more than one and swapping between them would be hugely problematic.

We'll need to wait until the OP comes back to clarify.