The baseband chip of the Apple iPhone 16 series has sparked discussions. TechInsights' teardown revealed that it uses the Qualcomm SDX71M baseband, instead of the expected X70 or X75 models. Netizens have various speculations about the identity of SDX71M, suggesting that it may be a customized product for Apple or a modified version of X70. Compared to the iPhone 15, the iPhone 16 lacks support for the TD-LTE B46 band, but performs better in 5G download speeds, up to 26% faster