Fingerprint scanners
Samsung Galaxy S6: Fingerprint sensor (PayPal certified)
iPhone 6: Touch ID: Touch ID fingerprint sensor (Visa, MasterCard, AMEX certified)
The fingerprint scanner in iPhone 6 provides a good alternative to secure your phone and reduce the time it takes to tap in that unlock code. Now you can use it with third party apps, make purchases in iTunes and it is also integrated into the NFC-based Apple Pay mobile payment system.
The S6 also offers a reliable fingerprint scanner. Like Apple, it will make it easier to make PayPal transactions and additionally can use the biometric data to log into certain websites.