EF500 Series is a 5" enterprise smartphone that possesses customizable design to meet the demands of customers in verticals such as payment, logistics, security etc. Customers can also choose either Android 5.1 or Windows 10. EF500 Series meets IP67 ratings and 1.5 m MIL STD-810G drop specification and, for the users that require operation under extreme environmental conditions for the prolonged period of time, EF500 Series can be upgraded to high-performance package increasing the drop spec to 2.5 m MIL STD-810G and enlarging battery capacity to 6,000 mAh. Through two different looks, EF500 Series meets customer demands and widens the choice of designs.