How to back up WhatsApp before an international trip
How to back up WhatsApp on iPhone and Android before you fly, what the backup leaves out, and how to get the account back if the phone is stolen abroad.
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WhatsApp not working on your travel eSIM?
Which settings fix WhatsApp on a travel eSIM, why photos stop loading and calls drop, and why a data-only plan cannot receive the verification code.
How much data does WhatsApp use?
A WhatsApp voice call costs about 0.5 MB a minute and a video call 5 to 15 MB. Texting rounds to nothing. Auto-downloaded media is what empties a plan.
Can I use WhatsApp with a travel eSIM?
Yes, and your number does not change. WhatsApp is tied to the number you registered, not to the SIM supplying data. What to set up before you fly.