There is no next sentence. This is a sentence that Xiaomi fans summed up from the Xiaomi conference. Xiaomi doesn't pay for a pair of mobile phones, which means it's better to buy even numbers for Xiaomi's digital series, such as Xiaomi 2, Xiaomi 4, Xiaomi 6 and Xiaomi 8. Because even-numbered mobile phones are upgraded on odd-numbered mobile phones, their performance is more powerful, so this sentence appears, and there is no next sentence.