Will my home phone number receive calls while I use the eSIM?
Yes - if your home SIM stays installed and active, calls and SMS to your home number arrive normally. The eSIM only handles data; voice service stays on your home line. Just remember that incoming calls and texts to your home number while abroad may trigger roaming charges from your home carrier.
Can I use the eSIM for my smartwatch?
Some smartwatches (Apple Watch Cellular, Samsung Galaxy Watch LTE) support eSIM, but they typically require a plan from your home carrier rather than a travel eSIM. eSIMno plans are designed for phones and tablets - check device compatibility before purchase if you intend to use a wearable.
Can I use the eSIM on more than one device?
Each eSIM profile is tied to a single device once activated. If you need data on multiple devices (e.g., phone and tablet), you can either purchase separate eSIMs for each device or use the Personal Hotspot feature on your phone to share data with other devices.
Can I install my eSIM before traveling?
Yes - setting it up before your trip is the easiest approach. Your confirmation email contains the QR code, a one-tap install link and the manual SM-DP+ / activation codes (the same options are also available via sign in > Profile > My eSIMs > Install). While on Wi-Fi at home, install it with the one-tap link on your phone, or - to use the QR - show it on another screen or a printout and scan it with the phone you are setting up (not another phone). Installing does not start your plan: the validity countdown only begins when the eSIM connects to a mobile network inside your plan's coverage area. Keep the eSIM line and its Data Roaming off until you are ready to start - if your plan covers the country you are in right now, turning the line on connects and starts the countdown immediately, even if you do not browse anything. Please note: once installed, an eSIM is considered used and is no longer eligible for a refund.
Is the eSIM connection secure?
eSIM connections are as secure as standard cellular connections - encrypted by the carrier network. For added security on public networks (cafes, airports), use a VPN. The eSIM profile itself is digitally signed and can't be cloned like a physical SIM.
How can I purchase the Hong-kong-unlimited eSIM?
You can purchase your eSIM directly from the eSIMno website - select a Hong-kong-unlimited plan and complete the payment. Within minutes you'll receive an order confirmation email that contains everything you need to install: a QR code, a one-tap install link, the SM-DP+ address and activation code, plus an "Install eSIM" button. You can install straight from that email, or sign in anytime and go to Profile > My eSIMs > Install to get the same options.
How do I top up my Hong-kong-unlimited eSIM?
To top up your Hong-kong-unlimited eSIM data, log in to the 'My eSIMs' section in the eSIMno Center on our website or mobile app. Select the eSIM you want to top up and follow the on-screen instructions to add more data without losing your current connection.
Will the eSIM work on my iPad?
Yes, if your iPad model supports eSIM. iPad Pro (3rd generation and later), iPad Air (3rd generation and later), iPad mini (5th generation and later), and standard iPad (7th generation and later with cellular) all support eSIM. Installation works the same way as on iPhone.
What payment methods does eSIMno accept?
eSIMno accepts major credit and debit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, and Google Pay. All transactions are processed through secure encrypted gateways, and we don't store full card details on our servers.
What happens if I pause my trip and return home?
Your eSIM keeps its validity period running whether you're using it or not - pausing your trip doesn't pause the timer. If you return home, the eSIM stays dormant on your device until you travel again or it expires. You can disable it in cellular settings to avoid accidental usage.
What should I do if I see a 'No network' message after activating my eSIM?
If you see a 'No network' message after activation, try these steps in order: (1) Toggle airplane mode on for 10 seconds, then off. (2) Confirm data roaming is enabled for the eSIM line. (3) Manually select a network in cellular settings. (4) Restart your phone. If the issue continues, contact eSIMno support via WhatsApp or email.
How do I set up the eSIM on my device?
The fastest way is straight from your order confirmation email, which now contains - for each eSIM - the QR code, a one-tap install link, and the SM-DP+ / activation codes. On the phone you'll use, tap the one-tap install link; or, to use the QR, show it on another screen or a printout and scan it with that same phone (not another phone); or enter the codes manually. The email also has an "Install eSIM" button that opens your eSIM's detail page and launches the install pop-up (sign in if prompted), and you can reach the same pop-up anytime via Profile > My eSIMs > find your plan (shown as "Ready to install") > Install. After installing, turn Data Roaming ON for your eSIMno line (iPhone: Settings > Cellular; Android: Settings > Connections/Network) - without it the eSIM installs but shows no internet. Full guide in Help & Support.
Hong Kong Unlimited / China Telecom HK 
