Oppo Reno 5K smartphone was launched on 25th February 2021. The phone comes with a 6.43-inch touchscreen display with a resolution of 1080x2400 pixels at a pixel density of 410 pixels per inch (ppi) and an aspect ratio of 20:9. Oppo Reno 5K is powered by an octa-core Qualcomm Snapdragon 750G processor. It comes with 8GB of RAM. The Oppo Reno 5K runs Android 11 and is powered by a 4300mAh battery. The Oppo Reno 5K supports proprietary fast charging.

As far as the cameras are concerned, the Oppo Reno 5K on the rear packs a 64-megapixel primary camera with an f/1.7 aperture; a second 8-megapixel camera with an f/2.2 aperture; a third 2-megapixel camera with an f/2.4 aperture and a fourth 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It sports a 32-megapixel camera on the front for selfies.

The Oppo Reno 5K runs ColorOS 11.1 is based on Android 11 and packs 128GB of inbuilt storage. The Oppo Reno 5K is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Oppo Reno 5K measures 159.10 x 73.40 x 7.90mm (height x width x thickness) and weighs 172.00 grams. It was launched in Green Breeze, Midnight Black, and Starry Dream colours.

Connectivity options on the Oppo Reno 5K include Wi-Fi 802.11 a/b/g/n/ac, GPS, Bluetooth v5.10, 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 in-display fingerprint sensor. The Oppo Reno 5K supports face unlock.