Viasimo does not provide a truly unlimited data eSIM plan for China. Instead, its China‑specific offerings are fixed data plans that give a set amount of high‑speed data each day and then slow the connection. The most common package is the China eSIM, Unlimited, 30 days, which supplies 2GB per day at full speed and then drops to a very low throttled speed after the daily quota is exceeded. A similar plan, the Greater China eSIM, Unlimited, 30 days, offers 3GB per day before the speed is reduced. For travelers who prefer a single‑use bundle without daily limits, Viasimo also sells 50 GB plans that last for 30 or 180 days and maintain full speed for the entire validity.
Because the daily limits are hard caps on high‑speed bandwidth, choosing one of these fixed data plans can be more economical unless a user is an extremely heavy data consumer that would exhaust the daily quota quickly.