Vivo Y51s smartphone has a 6.53-inch touchscreen display with a resolution of 1080×2340 pixels at a pixel density of 394 pixels per inch (ppi) and an aspect ratio of 19.5:9. Vivo Y51s is powered by a 2GHz octa-core Samsung Exynos 880 processor that features 2 cores clocked at 2GHz and 6 cores clocked at 1.8GHz. It comes with 8GB of RAM. The Vivo Y51s runs Android 10 and is powered by a 4500mAh battery. The Vivo Y51s supports proprietary fast charging. As far as the cameras are concerned, the Vivo Y51s on the rear packs a 48-megapixel primary camera with an f/1.79 aperture; a 2-megapixel camera with an f/2.4 aperture, and a 2-megapixel camera with an f/2.4 aperture. It sports an 8-megapixel camera on the front for selfies with an f/2.05 aperture. The Vivo Y51s runs FunTouchOS 10.5 is based on Android 10 and packs 128GB of inbuilt storage. The Vivo Y51s is a dual-SIM smartphone that accepts Nano-SIM and Nano-SIM cards. The Vivo Y51s measures 162.05 x 76.61 x 8.46mm (height x width x thickness) and weighs 190.00 grams. It was launched in Secret Realm Black, Snow Feather White, and Bihailan Blue colours. Connectivity options on the Vivo Y51s include Wi-Fi, GPS, USB OTG, Micro-USB, 3G, and 4G with active 4G on both SIM cards. Sensors on the phone include fingerprint sensor. The Vivo Y51s supports face unlock.