Are prepaid SIM cards really available in so many different types, and don’t you find it difficult to know which one to choose? Some can be bought at convenience stores, while others are available only with online orders, and the prices and speeds are totally different. Recently, I actually compared the popular プリペイドSIM14商品 and put together recommendations based on how you use them.

First of all, if you want to prioritize price above everything else, it’s a good idea to look for a service that offers unlimited data capacity that you can use from the 3,000-yen-per-month range. It uses the Docomo network and is suitable for everyday use. On the other hand, when you suddenly need one, a convenience-store prepaid SIM is convenient. You can purchase it immediately at Lawson or Seven-Eleven and start using it right away—that’s a big advantage.

If you’re concerned about communication speed, a type that uses SoftBank’s direct line is more stable. You can enjoy watching videos comfortably even during the daytime. However, the price tends to be a bit higher. Meanwhile, if you want to keep one long-term for a secondary device, a monthly plan on the Rakuten network is also an option. Some allow you to sign a contract in 1-year units, and if you use around 3GB per month, it can actually be quite affordable.

What might worry you is that convenience-store prepaid SIMs are convenient, but they tend to be overpriced. Depending on whether you prioritize immediacy or cost, the service you choose will change. Also, some require APN settings, while others can be used just by inserting the SIM—so if you’re not good at smartphone operations, be careful. If you’re looking for a large-capacity, inexpensive convenience-store prepaid SIM, comparing multiple services and choosing one that fits your usage is ultimately the best way to save money.