eSIM vs Roaming on Arrival: Compare the Full Trip Cost

How do I compare the price fairly?

For a daily roaming pass, check which activity triggers a charge and multiply by chargeable days. For usage-based roaming, review the applicable rates. Compare that with the selected eSIM’s current checkout total, allowance and validity; do not compare unequal durations or a daily high-speed limit with an unrestricted total.

Will I still pay my home carrier?

Possibly. Keeping the primary line active for calls or messages can have separate charges. Select the intended mobile-data line and review automatic switching and roaming controls on both lines. Buying an eSIM does not disable the original SIM’s tariff.

Which option is easier for my device?

A travel eSIM requires an unlocked compatible device and supplied installation instructions. A carrier pass may use your existing SIM but have different coverage and terms. check your exact device and compare the exact products rather than assuming one option always wins.

See each step on iPhone and Android

Use the walkthrough to see how buying in the Graba SIM app, installing on Wi-Fi and choosing your data line look on your own type of phone. Screens are illustrations: menu names vary by phone, software version and region.

Protect your home SIM from roaming charges

Switch roaming off on your usual line before you leave home, not after landing, so your phone cannot use your home provider’s roaming data when it first connects abroad. Then switch the travel eSIM on when you arrive.

• Before you fly, iPhone: Settings → Mobile Service (or Cellular) → your usual line → turn Data Roaming off. Keep mobile data on that line until you land.
• Before you fly, Android: Settings → Network & internet → SIMs → your usual SIM → turn Roaming off. On Samsung, start in Settings → Connections → SIM manager.
• When you land: open the travel eSIM line, make sure it is on and turn its Data Roaming (or Roaming) on. Then choose the travel eSIM for mobile data and turn off automatic data switching.

These settings control mobile data only. Your home provider may still charge for calls, texts or other services, so check its terms. Read the roaming settings guide.

Choose your next step

Brazil eSIM plans, Japan eSIM plans, USA eSIM plans or choose another destination.

Reviewed 16 October 2026 using current product information and the sources linked above. This is planning guidance, not a claim of independent network testing. Check the selected plan’s current price, coverage and activation terms before purchase.