What is the difference between SIM and eSIM?
A physical SIM card needs to be inserted into your phone's SIM slot, while an eSIM is an electronic SIM that can be activated by scanning a QR code - no physical card needed. Most modern phones support eSIM.
How do I choose between B4travel and Alt SIM Card?
B4travel (from HK$28) is great for all travelers, offering physical SIM and eSIM with 15+ destinations, 3GB to unlimited data, and 3-30 day plans. Alt SIM Card (from HK$25) offers physical SIM and eSIM with unlimited data, ideal for budget-conscious travelers.
How early should I purchase before my trip?
For B4travel physical SIM cards, we recommend ordering 2-3 days before departure to ensure delivery. eSIMs can be purchased and activated instantly anytime.
What happens when I run out of data?
Depending on your plan, some SIM cards will throttle speeds but maintain connection. You can also purchase additional data packs or choose an unlimited data plan.
Which countries are supported?
B4travel covers 15+ destinations: Japan, Taiwan, Korea, Thailand, Singapore, Malaysia, Vietnam, Indonesia, Australia, New Zealand, USA, Canada, China, Macau, and Europe. Alt SIM Card covers 14+ destinations. Buy from 16+ retail stores in Hong Kong (anlander, 2000FUN & more) or 9+ online platforms (anlander, HKTVmall, YOHO & more), or visit b4travel.shop and altsimcard.shop directly.
How do I activate my eSIM?
Download the eSIM by scanning the QR code provided after purchase. Go to your phone's Settings > Mobile Data > Add eSIM, then scan the QR code. The eSIM will be ready to use when you arrive at your destination. Most modern iPhones (XS and later) and Android phones support eSIM.
What network speeds can I expect?
B4travel uses premium 5G networks in each country. Our speed tests show up to 198Mbps in Malaysia, 196Mbps in Australia, 191Mbps in Taiwan, 184Mbps in Switzerland, and 160Mbps in Japan. Average speeds typically range from 50-100Mbps depending on location and network congestion. See our Speed Test Results page for detailed data across 86+ locations in 9 countries.
Can I top up or add more data to my SIM card?
Yes! B4travel eSIM cards support self-service top-up through our Data Checker tool at kamikagroup.com/datachecker. Simply enter your ICCID, choose a country and plan, and pay via credit card. Your new plan will be activated within 30 seconds. Physical SIM cards also support data top-up.
How do I check my remaining data?
Visit our free Data Checker tool at kamikagroup.com/datachecker. Enter your email for verification, then input your SIM card's ICCID number (printed on the SIM card or found in phone settings). The tool will show your current plan, data used, and remaining balance.
Do I need to unlock my phone?
For eSIM, your phone must be carrier-unlocked and eSIM-compatible. For physical SIM cards, your phone must be unlocked to accept a foreign SIM. Most phones purchased outright (not on contract) are unlocked. Contact your carrier if unsure.
Is there a fair usage policy?
Some plans include a high-speed data allowance (e.g., 5GB, 10GB, 20GB at 5G speeds). After reaching the allowance, speeds may be reduced but you will still have connectivity. Unlimited data plans from Alt SIM Card have no data cap.
Can I use my SIM for calls and SMS?
B4travel and Alt SIM Card plans are data-only SIM cards. They do not include voice calls or SMS. You can use VoIP apps like WhatsApp, Line, FaceTime, or Skype for calls and messaging over your data connection.
Where can I buy B4travel SIM cards in Hong Kong?
B4travel is available at 16+ retail stores across Hong Kong including anlander (Kwai Fong), 2000FUN (Sham Shui Po, Mong Kok), GadgetHero, Teledom, Man Fung, and more. You can also buy online from b4travel.shop, HKTVmall, YOHO, anlander.com, and other platforms. Visit our Stores page for the complete list with addresses and operating hours.
What is the difference between B4travel and B4travel Plus?
B4travel Plus offers multi-network coverage (connecting to 2-3 network operators in each country) for better signal stability and wider coverage. Standard B4travel uses a single premium network. B4travel Plus is recommended for travelers visiting rural areas or needing maximum reliability.
Can I use one SIM card in multiple countries?
Some plans cover multiple countries. For example, B4travel offers Japan+Taiwan combo plans, USA+Canada plans, Europe multi-country plans, and Asia multi-country plans. Check the specific plan details to see which countries are included.
How long does delivery take?
For eSIM, delivery is instant — you'll receive the QR code immediately after purchase. For physical SIM cards ordered from b4travel.shop, same-day delivery is available in Hong Kong. Orders placed before 2pm are typically delivered the same day. Free shipping is available for orders over HK$500.
What if my SIM card doesn't work?
If you experience issues, check that your phone is unlocked and the SIM is properly inserted or eSIM is correctly installed. Ensure data roaming is enabled in your phone settings. If problems persist, contact our 24/7 support team via WhatsApp at +852 6369 6869 or email insider@kamikagroup.com.
Does B4travel offer a money-back guarantee?
B4travel offers a Double Compensation guarantee on select products — if you experience network issues that cannot be resolved, you may be eligible for double the refund. Contact our support team for details and eligibility.