In 2026, the primary difference between a regular Suica and a Welcome Suica is their intended audience and validity. A regular Suica is a rechargeable IC card designed for long-term use; it requires a 500 yen deposit, is valid for 10 years from its last use, and allows you to refund the remaining balance (minus a fee) and the deposit at the end of your trip. In contrast, the Welcome Suica is a "tourist-only" card that requires no deposit. It features a special red cherry blossom design and is valid for only 28 days from the first use. Crucially, any balance left on a Welcome Suica is non-refundable after it expires, making it ideal for short-term travelers who want a souvenir card and wish to avoid the hassle of returning a regular card to a station office.