What’s the best SIM card for traveling in Southeast Asia? Personally, I highly recommend the Hotlink Four-Country One-Card Plan. I’ve been using it for almost a year now. The four countries are: Singapore, Malaysia, Thailand, and Indonesia. Plan details: · Monthly fee: RM55 (90 RMB) · 400GB high-speed data shared across four countries After downloading the Hotlink App, you can directly apply for an eSIM. Passport is required for KYC. Another feature I find super practical: 180-day number retention plan for RM30 (49 RMB). When you’re back in mainland China, you can still use it to receive verification codes.