The Xiaomi Mi 5s keeps the same 5.15" 1080p screen with 600 nits of brightness of its predecessor, the Mi 5, but adds a Snapdragon 821 chipset, and a bunch of new tech, both for the company, and overall. The top 4 GB + 128 GB version of the Xiaomi Mi 5s employs a pressure-sensitive display, leveraging the Synaptics touch drivers to tell between a lighter push or a harder press of the display's cover glass. Next in line for the Mi 5s is Qualcomm's Sense ID ultrasonic fingerprint sensing tech which recognizes fingertips in a fraction of a second while being less prone to damage. The camera on the back of the 5s is a 12 MP affair with the new Sony IMX378 sensor, while the front-facing shooter doles out 4 MP selfies. As for the rest of the specs, there is a USB-C port on the bottom of the phones, as well as Quick Charge 3.0 technology for rapidly topping up the phones.
The Xiaomi Mi 5s is most commonly compared with these phones: