eSIM for Apple and Samsung Watch
FAQS
Can I get an eSIM for my Apple or Samsung Galaxy smartwatch?
Yes. From 1st of July 2026, Cmobile supports eSIM for Apple watch or Samsung Galaxy watch. To get an eSIM for your watch, you need to be on a C Blue (Telstra network) 5G enabled plan priced at $30 and above. To add an eSIM for your watch, contact Cmobile support via email at [email protected] or call us on 1300 545 000. We will then give you a 6 digit code to activate your watch plan.
What mobile plans are eligible for companion eSIM?
To get an eSIM for your Apple or Samsung Galaxy watch, you need to be connected to a C Blue (Telstra) 5G enabled mobile phone plan. Currently the lowest priced C Blue 5G enabled plan is the $30 per month plan with 29GB of data. 4G only plans, and mobile broadband data plans are not eligible for companion eSIM.
C Red plans do not support eSIM or companion eSIM. You must have a C Blue 5G plan phone plan.
If you downgrade from a 5G enabled C blue plan to a 4G only plan, your companion eSIM will not work.
How much does the companion eSIM cost and what is included?
The companion eSIM for your Apple watch or Samsung Galaxy watch costs $10 per month, plus your normal C Blue plan charge. For example, if you are currently on the C Blue $30 per month plan and you enable the companion SIM, the monthly cost will be $30 + $10 = $40 per month.
The companion eSIM includes 1GB of data per month (typical eSIM watch use is 100MB). Data does not roll over each month. If 1GB data is used, service will pause until the next billing cycle. Unlimited standard domestic calls. No SMS available. Domestic use in Australia only, no international roaming for the companion eSIM is available.
What are the eligible devices and watches for companion eSIM?
Eligible Devices and Ecosystem Requirements
📱 Supported Smartphones
To use the companion plan, the smartphone must support eSIM functionality.
Brand Compatible Models Apple iPhone 6 series and later (including SE) Samsung Galaxy S8 series and later, Note 5+, Z Fold & Z Flip series, A5 (2017), J2 Pro Google ❌ Not supported for smartwatch pairing ⌚ Supported Smartwatches
A GPS + Cellular model is required (these include the necessary eSIM capability).
Brand Compatible Models Apple Apple Watch Series 4 and later (including Ultra) Samsung Galaxy Watch Active2, Watch 3, and Watch 4 Ultra or later Google ❌ Not supported for smartwatch pairing ⚠️ GPS-only models are not supported.
✅ Key Requirements
Before activating the companion plan, ensure the following:
1. Device Compatibility (Same Brand Ecosystem)
- The smartphone and smartwatch must be from the same manufacturer
(e.g. Apple Watch with iPhone, Samsung Watch with Samsung phone)
2. Software Currency
- Both devices must be running the latest OS/software versions to ensure proper syncing and feature support
3. Supported Device Types Only
- The plan supports smartphones and smartwatches only
- Tablets and other wearable devices are not supported
- The smartphone and smartwatch must be from the same manufacturer
How do I purchase an eSIM for my Apple or Samsung watch?
To purchase an eSIM for your Apple or Samsung watch please contact Cmobile support by email at [email protected] or call us on 1300 545 000. We will then provide you a six digit code to activate the eSIM on your watch via your phone watch app.
How do I activate my eSIM for my Apple watch?
Go to the Apple watch app on your phone
- Contact Cmobile Support to get your 6 digit code / account number
- Ensure your phone is connected to mobile data, not WiFi data (turn WiFi off)
- From Apple Watch App > Mobile > Setup Mobile Plan
- Click on Connect
- Enter your Mobile Number and your 6 digit code / account number – click Continue
- You will receive an SMS One Time PIN code
- Enter the One Time PIN code in the app and click Verify
- You will then see the Subscription Details – click Accept & add device to complete
- You will then be connected on your smart watch
How do I activate my eSIM for Samsung watch?
Go to the Samsung watch app on your phone
- Contact Cmobile Support to get your 6 digit code / account number
- Ensure your phone is connected to mobile data, not WiFi data (turn WiFi off)
- From Samsung Galaxy Wearable App > Watch Settings > Mobile Plans > Click Next
- Click on Connect
- Enter your Mobile Number and your 6 digit code / account number – click Continue
- You will receive an SMS One Time PIN code
- Enter the One Time PIN code in the app and click Verify
- You will then see the Subscription Details – click Accept & add device to complete
- You will then be connected on your smart watch
What is the eSIM pricing and CIS terms?
The cost of the eSIM for smartwatch is $10 per month, plus your standard mobile plan. For example, if your monthly plan is $30 per month, your watch eSIM will be an additional $10 per month ($30 + $10 = $40). As long as your watch eSIM is connected you will be charged the $10 per month fee.
The companion eSIM includes 1GB of data per month (typical eSIM watch use is 100MB). Data does not roll over each month. If 1GB data is used, service will pause until the next billing cycle. Unlimited standard domestic calls. No SMS available. Domestic use in Australia only, no international roaming for the companion eSIM is available.