FAQ
Frequently Asked Questions
Everything you need to know about using PreferSIM for your travels. Can't find your answer here? Contact our support team — we're happy to help.
Getting Started
How does eSIM activation work?
Activating your PreferSIM eSIM is quick and fully digital — no physical SIM card required. After purchasing, you'll receive a QR code by email. Here's how to activate it:
- Go to your phone's Settings > Cellular (or Mobile Data) and select Add eSIM or Add Data Plan.
- Choose Use QR Code and scan the QR code from your PreferSIM confirmation email.
- Follow the on-screen prompts to complete installation.
- When you arrive at your destination, your plan activates automatically.
The whole process takes under 5 minutes. We recommend activating your eSIM before you travel so you're connected the moment you land.
Which devices are compatible with eSIM?
Most modern smartphones support eSIM, including:
- iPhone: iPhone XS and later (XS, XR, 11, 12, 13, 14, 15, 16 series)
- Samsung Galaxy: S20 and later, Z Fold/Flip series, Note 20 and later
- Google Pixel: Pixel 3 and later
- Other Android: Many recent flagship and mid-range devices from OnePlus, Motorola, Huawei, and others
To confirm compatibility, go to Settings > General > About on iPhone, or check your device manufacturer's website. Note: some carrier-locked devices may not support third-party eSIMs.
Coverage & Data
What coverage do I get?
PreferSIM connects you to local partner networks in each destination, giving you strong coverage in cities, towns, and most popular travel areas. We offer plans across 70+ countries and regions including Asia Pacific, Europe, the Middle East, Africa, the Americas, and Central Asia. Coverage quality varies by location — remote or rural areas may have limited signal, just as they would with any local carrier.
Is my data unlimited or limited?
PreferSIM plans offer truly unlimited data with no speed throttling and no hidden data caps. You get full-speed data for the entire duration of your plan. What you see on the plan is exactly what you get — no fine print, no slowdowns after a certain amount of usage.
How long does my data last?
Each plan has a set duration (for example, 7 days, 15 days, or 30 days). Your data period begins when your eSIM first connects to a network at your destination — not when you purchase or install it. Once the duration expires, data access ends. You can purchase a new plan if you need more time.
What happens if I run out of data or my plan expires?
If your plan duration ends, your PreferSIM data will stop working. Your primary SIM card will continue to function normally. To stay connected, simply purchase a new PreferSIM plan from our store. We recommend choosing a plan that covers your full trip length to avoid interruptions.
Can I share my eSIM data with other devices (hotspot/tethering)?
Hotspot and tethering availability depends on your device settings and the specific plan. Many PreferSIM plans support mobile hotspot use, allowing you to share your connection with a laptop, tablet, or travel companion's device. Check your specific plan details at checkout for hotspot support information.
Do I need a VPN with PreferSIM?
No, a VPN is not required to use PreferSIM. Your connection is provided through trusted local network partners. However, if you prefer to use a VPN for privacy reasons while traveling (especially on public Wi-Fi), PreferSIM is fully compatible with VPN apps on your device.
Managing Your eSIM
Can I use my regular phone number while using PreferSIM?
Yes! Your primary SIM card remains active alongside your PreferSIM eSIM. You can still make and receive calls and texts on your regular number. PreferSIM only handles your data connection, so you get the best of both worlds.
Can I reuse my eSIM on a future trip?
Each PreferSIM plan is valid for a single activation and the specified duration. Once a plan expires, you'll need to purchase a new one for your next trip. However, if you delete your eSIM profile from your device, you may not be able to reinstall it — so keep it installed until your trip is fully complete.
Refunds & Support
How do I get a refund?
We want you to be completely satisfied with PreferSIM. If you haven't activated your eSIM yet, you're eligible for a full refund. Once an eSIM has been activated and connected to a network, we're unable to offer refunds as the service has been delivered. Please review our full Refund Policy for details, or contact our support team if you have questions about your specific situation.
How do I contact support?
Our support team is ready to help with plan selection, activation assistance, and any issues during your travels. You can reach us through our Contact page. We aim to respond to all inquiries within a few hours. For the fastest help, please include your order number and a description of the issue.
