The phone comes with a 6.53-inch touchscreen display with a resolution of 1080x2340 pixels at a pixel density of 395 pixels per inch (ppi) and an aspect ratio of 19.5:9. Poco M3 is powered by an octa-core Qualcomm Snapdragon 662 processor. It comes with 4GB of RAM. The Poco M3 runs Android 10 and is powered by a 6000mAh non-removable battery. The Poco M3 supports proprietary fast charging.As far as the cameras are concerned, the Poco M3 on the rear packs a 48-megapixel primary camera with an f/1.79 aperture and a pixel size of 0.8-micron; a second 2-megapixel camera with an f/2.4 aperture and a pixel size of 1.75-micron and a third 2-megapixel camera with an f/2.4 aperture and a pixel size of 1.75-micron. The rear camera setup has autofocus. It sports a 8-megapixel camera on the front for selfies, with an f/2.05 aperture and a pixel size of 1.12-micron.The Poco M3 runs MIUI 12 for Poco based on Android 10 and packs 64GB of inbuilt storage that can be expanded via microSD card (up to 512GB) with a dedicated slot. The Poco M3 is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Poco M3 measures 162.30 x 77.30 x 9.60mm (height x width x thickness) and weighs 198.00 grams. It was launched in Poco Yellow, Cool Blue, and Power Black colours.Connectivity options on the Poco M3 include Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth v5.00, Infrared, USB Type-C, FM radio, 3G, and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, proximity sensor, and fingerprint sensor. The Poco M3 supports face unlock.