Vivo Y15s (2021) mobile was launched on 9th November 2021. The phone comes with a 6.51-inch touchscreen display with a resolution of 720x1600 pixels. Vivo Y15s (2021) is powered by an octa-core MediaTek Helio P35 (MT6765) processor. It comes with 3GB of RAM. The Vivo Y15s (2021) runs Android 11 (Go Edition) and is powered by a 5000mAh battery.

As far as the cameras are concerned, the Vivo Y15s (2021) on the rear packs a dual camera setup featuring a 13-megapixel primary camera with an f/2.2 aperture, and a 2-megapixel camera with an f/2.4 aperture. The rear camera setup has autofocus. It has a single front camera setup for selfies, featuring an 8-megapixel sensor with an f/2.0 aperture.

The Vivo Y15s (2021) runs Funtouch OS 11.1 is based on Android 11 (Go Edition) and packs 32GB of inbuilt storage that can be expanded via microSD card. The Vivo Y15s (2021) is a dual-SIM (GSM and GSM) mobile that accepts Nano-SIM and Nano-SIM cards. The Vivo Y15s (2021) measures 163.96 x 75.20 x 8.28mm (height x width x thickness) and weighs 179.00 grams. It was launched in Mystic Blue and Wave Green colours.

Connectivity options on the Vivo Y15s (2021) include Wi-Fi, GPS, Bluetooth v5.00, USB OTG, Micro-USB, 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 Vivo Y15s (2021) supports face unlock.