Unlocked cell phones are compatible with GSM carrier such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint. Nubia Red Magic 3S smartphone was launched in September 2019. The phone comes with a 6.65-inch touchscreen display with a resolution of 1080×2340 pixels and an aspect ratio of 19.5:9. Nubia Red Magic 3S is powered by an octa-core Qualcomm Snapdragon 855 Plus processor. It comes with 8GB of RAM. The Nubia Red Magic 3S runs Android Pie and is powered by a 5000mAh battery. The Nubia Red Magic 3S supports proprietary fast charging. As far as the cameras are concerned, the Nubia Red Magic 3S on the rear packs a 48-megapixel camera with an f/1.79 aperture. The rear camera setup has autofocus. It sports a 16-megapixel camera on the front for selfies, with an f/2.0 aperture. Nubia Red Magic 3S based on Android Pie and packs 128GB of inbuilt storage. The Nubia Red Magic 3S is a dual-SIM smartphone that accepts Nano-SIM and Nano-SIM cards. Connectivity options on the Nubia Red Magic 3S include Wi-Fi 802.11 a/b/g/n/ac, Bluetooth v5.00, USB Type-C, 3G, and 4G (with support for Band 40 used by some LTE networks in India) with active 4G on both SIM cards. Sensors on the phone include accelerometer, ambient light sensor, compass/ magnetometer, gyroscope, proximity sensor, and fingerprint sensor. The Nubia Red Magic 3S measures 171.70 x 78.50 x 9.65mm (height x width x thickness) and weighs 215.00 grams. It was launched in Black and Red colours.