There are two other possible factors. 1. Qualcomm has invested in Xiaomi. It’s possible that influences the prices they can negotiate. 2. Like Samsung, Xiaom

There are two other possible factors. 1. Qualcomm has invested in Xiaomi. It’s possible that influences the prices they can negotiate. 2. Like Samsung, Xiaomi has their own in-house SoC development program. Just the threat of an alternative gives them more ability to negotiate pricing.