A report from Barclays predicts that this year’s iPhone XR will bring better cellular connectivity with a new LTE 4×4 MIMO antenna.
MIMO stands for “multiple-input, multiple-output,” and can expand the bandwidth of devices when connected via Wi-Fi, 3G, or 4G. Apple’s interest is presumbably focused on 4G LTE, especially as speeds are pushed to the limit during the cellular industry’s transition to 5G.
The iPhone XS and XS Max both feature Gigabit-class LTE 4×4 MIMO (multiple-input, multiple-output) antennas. The current iPhone XR is limited to 2-by-2 MIMO.
A few months ago, PC Magazine reported that the iPhone XS and iPhone XS Max have “significantly better” LTE performance than the iPhone XR based on testing conducted by Cellular Insights and Rohde & Schwarz. The difference was especially noticeable in weak signal conditions, the results indicated.