OnePlus this week launched its latest smartphone OnePlus 6T in India. The smartphone is the second flagship by the company this year. But since its launch Xiaomi has been trolling OnePlus. Xiaomi with the tagline ‘Do the math’ is trolling OnePlus on Twitter, highlighting top features of the Poco F1 in addition to the same processor and memory blend. Poco F1 is also cheaper than OnePlus 6T. Both smartphones are powered by Qualcomm’s high-end Snapdragon 845 processor. OnePlus 6T starts at Rs