Vivo X51 5G smartphone was launched on 21st October 2020. The phone comes with a 6.56-inch touchscreen display with a resolution of 1080x2376 pixels. Vivo X51 5G is powered by an octa-core Qualcomm Snapdragon 765G processor. It comes with 8GB of RAM. The Vivo X51 5G runs Android and is powered by a 4315mAh non-removable battery. The Vivo X51 5G supports proprietary fast charging.

As far as the cameras are concerned, the Vivo X51 5G on the rear packs a 48-megapixel primary camera with an f/1.6 aperture; a second 13-megapixel camera with an f/2.46 aperture; a third 8-megapixel camera with an f/2.2 aperture and a fourth 8-megapixel camera with an f/3.4 aperture. The rear camera setup has autofocus. It sports a 32-megapixel camera on the front for selfies, with an f/2.45 aperture.

The Vivo X51 5G runs Funtouch OS 10 Global based on Android and packs 256GB of inbuilt storage. The Vivo X51 5G is a dual-SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM cards. The Vivo X51 5G measures 158.46 x 72.80 x 8.04mm (height x width x thickness) and weighs 181.50 grams. It was launched in Alpha Grey colour. It bears a glass body.

Connectivity options on the Vivo X51 5G include Wi-Fi, GPS, Bluetooth v5.10, NFC, USB Type-C, and 4G. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, gyroscope, proximity sensor, temperature sensor, and fingerprint sensor.