Wisp guides
Make the connection part simple.
Clear answers for choosing travel data, preparing your phone and arriving ready to connect.
Choosing a plan
01How much eSIM data do I need for a trip?
Estimate the right travel eSIM allowance for maps, messaging, social media, video and remote work without paying for data you will not use.
Travel connectivity
02Travel eSIM vs data roaming: what is the difference?
Compare a prepaid travel eSIM with mobile-network roaming, including pricing, setup, phone numbers and the situations where each option makes sense.
Before departure
03When should I install and activate a travel eSIM?
Understand the difference between eSIM installation and activation, and prepare your travel data without starting the plan too early.
Device compatibility
04Is my phone eSIM compatible and unlocked?
Learn how to check whether an iPhone or Android phone supports eSIM and whether a network lock could prevent installation.
Destination guidance
05Using a travel eSIM in China: what to know before you go
Prepare mobile data for China, understand international traffic routing and avoid relying on unverified promises about access to particular websites or apps.