Google Wallet is a digital payment service that allows users to make online and in-store purchases using smartphones. It stores debit and credit cards, loyalty cards, and gift cards in one app. The service uses NFC technology to enable fast and secure transactions, providing a convenient alternative to physical cards.

Yes, Google Wallet incorporates multiple security features, including encryption to protect card details and not sharing actual card numbers with merchants during transactions. Users can also enable biometric authentication, such as fingerprint or face recognition, for added security.

Google Wallet is accessible in many countries, but its features and availability may differ by location. Check whether it supports transactions in your destination country before traveling. Be aware that currency conversion fees might apply for purchases in foreign currencies. Confirm with your bank and the app for smooth international use.

Google Wallet works with most Android devices running version 5.0 or higher and iPhones with iOS 10.0 or later. The device must support NFC technology for contactless payments. Ensure your device meets these requirements for optimal functionality.

Generally, using Google Wallet for personal transactions is free. However, fees may be incurred for business payments or international currency conversions. Check the app's terms or contact support for detailed fee information.