Frequently Asked Questions
Find answers about activation, compatibility, hotspot support, refunds, and travel data setup before your trip.
What is LemonSIM?
LemonSIM is a global travel connectivity provider offering eSIMs and physical SIM cards for international travelers. Our plans help you stay connected with reliable mobile data in destinations like Japan, the USA, Europe, and many more without expensive roaming charges.
What is an eSIM?
An eSIM is a digital SIM that lets you activate a mobile data plan without inserting a physical SIM card. Simply scan a QR code or install the eSIM directly on your compatible device.
What's the difference between an eSIM and a physical SIM card?
An eSIM is downloaded digitally and activated instantly, while a physical SIM card must be inserted into your phone. Both provide reliable mobile data, but eSIMs offer a faster and more convenient setup for compatible devices.
Which countries does LemonSIM support?
LemonSIM currently offers travel connectivity solutions for Japan, the USA, Europe, and will continue expanding to more destinations worldwide.
How do I activate my eSIM?
After your purchase, you'll receive a QR code via email. Scan the QR code using your compatible device, install the eSIM, and activate it when you're ready to travel.
When should I install my eSIM?
You can install your eSIM before your trip. We recommend activating it shortly before arriving at your destination to ensure your plan starts when you need it.
How long does activation take?
Most eSIMs can be activated within 2–5 minutes after installation.
Can I activate my eSIM before arriving?
Yes. Installation can be completed anytime, while activation can begin when you arrive at your destination.
Which devices support eSIM?
Most recent iPhone, Samsung Galaxy, Google Pixel, and many other flagship smartphones support eSIM technology.
How can I check if my phone supports eSIM?
Visit our Device Compatibility page or check your phone's settings. You can also search your device model on our compatibility checker.
Can I use Dual SIM?
Yes. Most eSIM-compatible devices support Dual SIM functionality, allowing you to keep your home SIM active while using LemonSIM for mobile data.
Which networks does LemonSIM use?
LemonSIM partners with trusted local carriers in each destination to provide fast and stable 4G/5G connectivity.
Will my eSIM automatically connect to the best network?
Yes. In most destinations, your device will automatically connect to the strongest available partner network.
Does LemonSIM support hotspot?
Yes. Most LemonSIM plans support personal hotspot (tethering), unless otherwise stated on the product page.
Will I keep my WhatsApp number?
Yes. Using a LemonSIM eSIM or SIM card will not affect your existing WhatsApp account as long as you keep your original number.
Can I cancel my order?
Orders that have not been activated may be eligible for cancellation. Please contact our support team for assistance.
Do you offer refunds?
If your eSIM has not been activated or meets our refund policy requirements, we'll be happy to review your request.
Can I recharge my eSIM?
Recharge availability depends on your selected plan. Please check the product details or visit our Top-Up page for supported plans.
How will I receive my eSIM?
Your eSIM QR code and installation instructions will be sent instantly to your email after payment is completed.
What should I do if my eSIM isn't working?
Please ensure your device supports eSIM, Data Roaming is enabled, and the correct eSIM profile is selected. If you still experience issues, contact our support team for assistance.
How can I contact LemonSIM?
You can reach our customer support team via email, live chat, or the Contact Us page. We're here to help with setup, troubleshooting, and travel connectivity questions.
Is customer support available 24/7?
Yes. Our support team is available 24/7 to help you before, during, and after your trip.