Fingerprint-detection is a popular method of secure-authentication in cellphones, led by Apple, Samsung, Huawei and others. We forecast smartphones with fingerprint sensors to grow with a healthy +14% CAGR in 2018-2023 driven by fast penetration to lower pricepoints. Backside placement will grow to be most used positioning option. Our innovative report forecasts worldwide sales of fingerprint phones by sensor-placement location, such as behind-glass, from 2004 through 2023. The report can be used by operators, handset vendors, component suppliers and others to determine or prioritize the size and growth rate of the global fingerprint phone market.