The internal storage capacity of the Vivo S15 is 128GB or 256GB, and it operates on Android 12 with OriginOS Ocean. The phone sports a 6.62-inch touchscreen display with a 120 Hz refresh rate, 1080×2400 pixels (FHD+) resolution, and a 20:9 aspect ratio. The Vivo S15 is powered by the Qualcomm Snapdragon 870 central processing unit. There are 8GB and 12GB of RAM. The Vivo S15 runs Android 12 and is backed by a 4500 mAh battery. The Vivo S15 is compatible with exclusive quick charging.