Oppo is a Chinese consumer electronics manufacturer headquartered in Dongguan, Guangdong. Its major product lines include smartphones, smart devices, audio devices, power banks, and other electronic products. From Wikipedia
The K12s debuts in China and the K13 5G in India, offering 7,000 mAh batteries, 120 Hz AMOLED displays, and aggressive pricing, with early reviews highlighting battery life and charging speed.