The split setup: one number, one global data eSIM
Keep your number and voice on one SIM for calls and SMS two-factor codes. Use a second global data eSIM for mobile data in countries covered by that plan.
Why split voice and data
A number is useful to keep stable because accounts and two-factor codes depend on it. The data line can be selected for its global coverage, price and usage limits.
What you need
You need an unlocked, eSIM-capable phone that supports using both lines together. Check the device list and installation instructions published by the provider you choose.
Choosing the data line
Compare the 30 day plans, check the Coverage Index, and read the fair-use guide. Provider pages preserve the current prices, limitations and primary sources.
Set-up outline
- Keep your existing number line enabled for calls and SMS.
- Install the global data eSIM using the provider's instructions.
- Select the global eSIM for mobile data.
- Check whether data switching or roaming must be enabled for that provider.
Voice providers are outside this comparison. Your phone's exact menus and dual-SIM behavior depend on its manufacturer and operating system.