A smaller iPhone may be in your future.
Only American Express cardholders can make mobile payments for now.
The Korean giant moves quickly to allay fears that its recently launched mobile payment service was hacked.
Android Pay looks to avoid Google Wallet’s earlier fatal flaws.
Apple Pay is one of the most secure mobile payment systems out there, experts say, but the banks that oversee the transitions aren't up to par.
Qualcomm's ultrasonic fingerprint scanners could secure Google's new Android Pay platform.