Hengxuan 2500 is better. The 2500 series chip is positioned as the middle and high-end, and the quality is also good, which can be used for TWS headset products. Hengxuan chip has the characteristics of low sleep current and working current, which is helpful to improve the product battery life.
The sound quality of the two brands is good, supporting SBC and AAC audio formats; Qualcomm's chips also optionally support its proprietary codec-AptX, a low-latency subclass that enhances the user experience in gaming headsets.