Redmi K30S smartphone was launched on 27th October 2020. The phone comes with a 6.67-inch touchscreen display with a resolution of 1080x2400 pixels and an aspect ratio of 20:9. Redmi K30S is powered by an octa-core Qualcomm Snapdragon 865 processor. It comes with 8GB of RAM. The Redmi K30S runs Android 10 and is powered by a 5000mAh non-removable battery. The Redmi K30S supports proprietary fast charging.

As far as the cameras are concerned, the Redmi K30S on the rear packs a 64-megapixel primary camera with an f/1.89 aperture and a pixel size of 1.6-micron; a second 13-megapixel camera with an f/2.4 aperture and a third 5-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports a 20-megapixel camera on the front for selfies, with an f/2.2 aperture.

The Redmi K30S runs MIUI 12 based on Android 10 and packs 128GB of inbuilt storage. The Redmi K30S is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Redmi K30S measures 165.10 x 76.40 x 9.33mm (height x width x thickness) and weighs 216.00 grams. It was launched in Interstellar Black and Moonlight Silver colours.

Connectivity options on the Redmi K30S include Wi-Fi 802.11 a/b/g/n/ac/Yes, GPS, Bluetooth v5.10, NFC, Infrared, USB Type-C, 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, gyroscope, proximity sensor, and fingerprint sensor. The Redmi K30S supports face unlock.