A step-by-step guide for after you click to order a SIM, eSIM, or WiFi from HD Telecom: order confirmation, payment, submitting documents, receiving your item, and setting it up so you can start using data right away.
Sep 4, 2026
If you're staying in Japan for 2 to 6 months, should you get a tourist SIM, a monthly data SIM, an eSIM, or a voice SIM? Compare costs, required documents, and how to choose based on your situation.
300GB/month works out to 10GB/day—only worth the money if you hotspot your laptop, stream HD videos, or make daily video calls to Vietnam. This article helps you measure your real data needs in just 5 minutes.
Sep 3, 2026
Japanese law doesn't require a phone number to open an account, but almost every bank asks for a contact number in Japan. Here's how to handle it in practice.
A list of 12 procedures and services in Japan that require a Japanese phone number (090/080/070), along with how to distinguish between data SIMs, voice SIMs, and 050 numbers.
Step-by-step guide for newcomers to Japan: choosing a data SIM, eSIM, pocket WiFi, or a voice-call SIM, what documents you need, how much it costs, and what order to follow.
Compare data SIM and voice SIM in Japan: whether you get a phone number, receiving SMS OTP, price, registration documents, and how to choose the right type for international students and working professionals.
Comparing data SIMs, voice call SIMs, eSIMs, and pocket WiFi for international students in Japan: which type to choose, what documents you need, and how much it costs per month.
Comparing physical SIMs and eSIMs in Japan: installation method, time to receive, compatible devices, device switching, lost devices, cost, and which one to choose in each case.
