Apple Watch can work on its own, but it needs eSIM to be activated first. eSIM is a built in digital SIM that lets the watch connect to a cellular network. Once it is set up, making calls, sending messages, and streaming music is possible even when iPhone is not nearby. [1] This article covers the steps to activate eSIM on Apple Watch.

What You Need Before Activating eSIM on Apple Watch

Before starting the activation process, make sure you have the following ready:

• An iPhone running the latest version of iOS

• An Apple Watch with GPS + Cellular (Series 3 or later, SE, or Ultra)

• A carrier plan that supports Apple Watch eSIM activation

• Both devices connected to the same Wi-Fi network

Also, make sure your Apple Watch is already paired with your iPhone before moving to the next step. [2]

How to Activate eSIM on Apple Watch?

Pair Your Apple Watch with iPhone

If your Apple Watch is not paired yet, you need to do this first.

1. Open the Apple Watch app on your iPhone.

2. Tap Start Pairing and hold your watch in front of the iPhone camera when prompted.

3. Choose to set up as a new watch or restore from a backup.

4. Follow the onscreen instructions to complete pairing.

Once pairing is done, your Apple Watch is ready for cellular setup.

Set Up Cellular Service

1. Open the Apple Watch app on your iPhone.

2. Go to the My Watch tab and tap Cellular.

3. Tap Set Up Cellular.

4. Follow your carrier's onscreen instructions. This may include signing in to your carrier account and confirming your plan details.

The activation may take a few minutes while your carrier provisions the eSIM.

Verify Cellular Connection

After setup is complete, check if the connection is active:

1. On Apple Watch running watchOS 10 or later, press the side button to open Control Center.

2. On older watchOS versions, swipe up from the watch face.

3. Look for the cellular icon. A green icon means your watch is connected to the cellular network. [3]

Common Apple Watch eSIM Activation Problems and Fixes

If you run into issues during eSIM activation, here are some common problems and how to fix them:

eSIM is not being recognized by Apple Watch

Restart both your iPhone and Apple Watch. Power them off at the same time, then turn them back on. This usually forces the devices to reconnect and recognize the eSIM profile.

Activation failed or taking too long

Make sure both devices are connected to a stable Wi-Fi network. If the status stays on "Activating" for more than ten minutes, turn airplane mode on and off to reset the network connection.

"Unable to add plan" error

Contact your carrier and confirm that your plan supports Apple Watch eSIM activation. Some prepaid or corporate accounts do not allow wearable add-ons without a specific feature enabled by the account administrator.

No cellular signal icon after activation

Turn off Bluetooth on your iPhone temporarily. Sometimes the watch stays connected to iPhone through Bluetooth instead of switching to cellular. Disabling Bluetooth forces the watch to use its own eSIM connection.

Carrier settings update required

On your iPhone, go to Settings > General > About. If a carrier settings update is available, a prompt will appear. Installing this update makes sure your iPhone has the latest configuration for Apple Watch eSIM activation.

Which Apple Watch Models Support eSIM?

Before activating eSIM on Apple Watch, it is important to verify if the model actually supports cellular functionality. Not all Apple Watch variants come with eSIM capability. Apple uses the term "GPS + Cellular" to indicate models with embedded SIM (eSIM) support.

Here is a detailed breakdown:

Table1: Apple Watch Models That Support eSIM

GPS only models do not include an eSIM chip. They cannot connect to cellular networks independently and will not show a "Set Up Cellular" option during pairing.

The Advantages of eSIM on Apple Watch

Using eSIM technology on Apple Watch offers several advantages over traditional SIM cards:

• No Physical SIM Card: There is no need to insert or remove a physical SIM card when switching carriers or changing plans. This removes the limitation of handling small SIM cards on a wrist worn device.

• Multiple Profiles on One Device: eSIM allows managing multiple profiles on the device, so it is possible to have different phone numbers and mobile plans without the need for additional SIM cards. [4]

• Improved Device Design: Apple Watch devices with eSIM technology can be designed with more space for other features, improving performance and battery life.

• International Travel: With eSIM, Apple Watch can stay connected while traveling abroad, as long as the carrier supports international roaming on the active plan.

Roamless eSIM Support

Roamless eSIM is a suitable option for international travel. When used with Apple Watch models that support eSIM, it provides affordable and stable mobile connectivity across many countries. With a travel eSIM like Roamless, there is no need to purchase a physical SIM card when traveling abroad, which helps reduce both time and cost.

You can open the Roamless app and enter a valid promo code at checkout. To get the latest offers and extra data on your first purchase, visit our eSIM promo code page.

Apple Watch eSIM compatible models cover a range of options for different needs and budgets. These devices connect to cellular networks independently, and when paired with Roamless eSIM, they offer a reliable and cost effective mobile connection during international trips.

For more information you can visit our eSIM Compatible Smartwatches and Best eSIM for Smartwatch Users Traveling Abroad pages.

Frequently Asked Questions

Can I Use an eSIM with an Apple Watch?

Yes, but only on GPS + Cellular models. GPS only models do not have eSIM hardware. Apple Watch Series 3 and later, all SE generations, and all Ultra models support eSIM in their cellular versions.

Can I Use the Same eSIM on My iPhone and My Apple Watch?

No. Apple Watch uses its own separate eSIM profile. However, through your carrier's number sharing feature, the watch shares the same phone number as your iPhone. Both devices are connected to the same carrier, but each has its own eSIM. Most carriers charge a monthly fee for this add on service.

Which Carriers Support Apple Watch eSIM?

Carrier support varies by country and region. Major carriers like AT&T, Verizon, T-Mobile, and EE support Apple Watch eSIM activation. To check if your carrier is supported, visit apple.com/watch/cellular for the full list.

Can I Share My iPhone's Data with My Apple Watch?

Apple Watch automatically uses the iPhone's data connection when both devices are nearby through Bluetooth or Wi-Fi. When the iPhone is not in range, the watch switches to its own cellular connection if eSIM is activated.

Can I Use My Apple Watch eSIM as a Mobile Hotspot?

No. Apple Watch does not support mobile hotspot functionality. Even with an active eSIM and cellular connection, the watch cannot share its data with other devices.

Sources:

[1] Apple Support, "Set up cellular on Apple Watch." https://support.apple.com/en-us/119601

[2] Apple Support, "Set up your Apple Watch." https://support.apple.com/en-us/109015

[3] Apple Support, "Set up and use cellular service on Apple Watch." https://support.apple.com/guide/watch/set-up-and-use-cellular-service-apd9a168c68b/watchos

[4] Apple Support, "Use Dual SIM with Apple Watch GPS + Cellular models." https://support.apple.com/en-us/102359