After Appleās iPhone 12 series models launched in 2020 embraced 5G networks, each product iteration has improved support for 5G networks. According to the latest data released by SpeedSmart, under the 5G network of US operators, the iPhone 15 Pro series models can increase speed by up to 24%.

The agency tested the 5G network speeds of iPhone 15 Pro and iPhone 15 Pro Max in the 5G network environment of three major US carriers: AT&T, T-Mobile and Verizon.
It is reported that the two iPhone 15 Pro models use Qualcommās X70 modem, which mainly brings the following three major improvements:
Significantly reduced power gain
Better 5G carrier aggregation capabilities
Improves iPhone signal connection when away from base stations.
According to US carrier 5G network test results, the iPhone 15 Pro and iPhone 15 Pro Max have 5G speeds that are 24% faster compared to the iPhone 14 Pro series, with Verizon seeing the biggest improvement, followed by T-Mobile and AT&T.
