The latest tests on iPhone 7 revealed two different LTE modems from Intel and Qualcomm with varying speed of up to 30%! A report from Cellular Insights suggests that the LTE modems from Qualcomm perform better than Intel’s.
Here’s how you can check which LTE modem your iPhone 7 has
Go to Settings -> General -> About
Tap on the Regulatory setting and the model number is the one circled. If the number is A1660 or A1661, it is the Qualcomm LTE modem. If it is A1778 or A1784, then it is the Intel LTE modem.
Which LTE modem do you have?