A new report from Counterpoint Research has found that, of all Apple smartphones, the iPhone XR did the best in the US market in the month of February 2019. Of those who bought this device, 20% of those already using iOS upgraded from the 7, whereas 32% more exchanged models older than this for the XR. Counterpoint also found that the XR was responsible for the greatest conversion from Android to this platform in February.
https://www.notebookcheck.net/The-iPhone-XR-was-Apple-s-top-seller-in-the-US-for-February-2019.418238.0.html