Choose an eSIM for a 7, 15 or 30-day trip
Your trip length sets the requirement. The duration sold by the supplier can be longer, and its clock may begin before you arrive.
By Simvito · Reviewed and updated
Seven days: check the whole week
Enter seven days on the destination page. A total-data plan valid for 30 days can cover a seven-day trip; that does not mean you receive a fresh allowance every week. The allowance is shared over its validity.
Use the actual purchasable tier when comparing a daily plan. If only a 10-day tier meets your needs, compare the entire 10-day price with the total-data price. Check the busiest day as well as the week’s total.
Fifteen days: add travel and onward stops
Count the days when you need mobile data, including arrival and departure. A plan valid for seven days cannot cover a 15-day requirement simply because it has enough gigabytes.
For an illustrative budget of 1 GB per day, 15 days suggests 15 GB total or a daily allowance of 1 GB. This is an assumption for comparison, not a prediction of your usage. Adjust for video, work and hotspot sharing.
Thirty days: quota and validity are separate
A 30-day 10 GB total plan offers 10 GB for the whole purchased period, not 10 GB every day. Divide your intended usage across the month, or compare a larger total allowance and daily plans.
Check what happens after the allowance, and whether top-ups add data, time or neither. Do not assume adding data extends the original validity. Use the rule on the actual selected plan.
Choose the start event before installing
Read whether validity begins on purchase, installation or first connection. Then check how days are counted. For a midnight arrival, a calendar-day clock can differ from a rolling 24-hour clock; the selected plan’s rule is the one that matters.
On Japan, Singapore and other country pages, the examples use current purchasable tiers. Change the trip length and conditions above the table, then confirm the full price and validity in checkout.