Chinese handset manufacturer OPPO has launched its Joy 3 smartphone in India – OPPO Joy 3 will retail at a price of Rs 7,990. According to the in.techradar.com, the OPPO Joy 3 is a dual SIM 3G smartphone. It features a 4.5 inch IPS screen, 1.3GHz Quad-core processor and packs a 2000mAh battery with 180 hours of standby time. …