Product name: Xiaomi Watch S1

Materials: Sapphire glass + stainless steel case

Strap material: Calfskin leather/Fluororubber

Product colou: rBlack (black leather strap + black fluororubber strap); Silver (brown leather strap + grey fluororubber strap)

Product dimensions: 46.5mmx46.5mmx11mm (not including strap and local protrusions)

Display: 1.43″ AMOLED display

Display resolution: 466×466

Adjustable length strap: 165.1mm-225.1mm (leather); 149.8mm-233.8mm (fluororubber)

Battery capacity: 470mAh

Battery type: Lithium-ion polymer battery

Operating temperature: -10℃-45℃

Water resistance rating: 5 ATM

Sensors: Heart rate sensor (with blood oxygen sensor), accelerometer, gyroscope, geomagnetic sensor, atmospheric sensor, ambient light sensor

Charging port: Wireless charging

Microphone: Supported

Speakers: Supported

Note: Both the varaiants come with an additional brown leather strap.