Trợ giúp
How comparison works
Choose your dates and destinations, then estimate daily usage. Confirmed remaining allowance follows the applicable deduction rules; results compare additional trip costs.
What if my plan is not listed?
Compare standalone options or enter your confirmed roaming balance, destinations and expiry. Enter each shared allowance only once.
Prices and validity
Prices come from official listings; conversions use reference rates. Validity may start at purchase, installation or first connection, so check the plan details.
Comparison scope
The calculator compares listed single and multi-pack options, including repeat purchases only when officially supported. It uses itinerary coverage, validity and included allowances to search for lower-cost feasible options with up to 16 packs within a bounded calculation; it does not guarantee every market combination.