In December 2025, several new smartphones are set to launch in India, including the OnePlus 15R, Vivo X300 series, Realme P4x 5G, OPPO Find X9 Velvet Edition and Redmi 15C. These devices along with others are expected to offer bigger batteries, faster charging, upgraded cameras and powerful Snapdragon or MediaTek chips. Find their expected prices, specs and key features.