As of 2026, you can store your passport digitally on your smartphone, but it cannot yet fully replace your physical passport for international border crossings. In the United States, Apple Wallet and Google Wallet now support "Digital IDs" and "Digital Passports" for select states, which are TSA-approved for domestic security screenings at many major airports. This allows you to tap your phone instead of showing a physical ID to get through the checkpoint. Some countries, like India with the "ePassport" and the EU with "Digital Travel Credentials" (DTCs), are moving toward a standard where your digital data is cryptographically verified via your phone's NFC chip. However, immigration officers globally still require the physical booklet with its secure ink and holographic features to provide a "Landing Permission" stamp or for visual verification. The 2026 "pro-tip" is to keep a high-quality scan of your passport in a secure digital vault (like iCloud or a password manager) as a backup for hotel check-ins or in case of loss, but always carry the physical book in your hand when headed to the airport.