Research group Acuity Market Intelligence has revealed that the biometric smartphone market has seen rapid growth in recent months, with an estimated 600 million biometric smartphones in use today, representing 28% of the global installed base of smartphones.In its new 'Biometric Smartphone Update', Acuity notes that the price of biometric smartphones had dropped dramatically as the market has expanded.”New entrants, many focused on emerging markets, have introduced low-end options that are driving the transition from traditional handsets. Since Fujitsu introduced the US Arrows X F-02E in February 2013, followed by the groundbreaking Apple iPhone 5S in September 2013, the quarterly average price of biometric smartphones has dropped from more than $800 to just $263. This includes 28 models introduced since May 2014 selling for $150 or less.”The group notes that more than 200 biometric smartphone models have been introduced since Q1 2013. This includes smartphones incorporating fingerprint, iris, and eye vein biometrics form market leaders such as Apple, Samsung, Huwei, Xiaomi, Lenovo, TCL, Oppo, BBK/VIVO, and ZTE.