The Asus Zenfone Pegasus 3S is a dual SIM smartphone that accepts Nano-SIM and Nano SIM. Connectivity options include Bluetooth, USB OTG, 3G and 4G. Sensors on the phone include Proximity sensor, Accelerometer and Ambient light sensor.Asus is one of the world's largest computer hardware companies. Its products include desktops, PC peripherals, laptops, smartphones, tablets and hybrid devices. The company has made Android phones powered by Intel.