Apple’s commitment to enhancing 5G performance in their iPhones continues to pay off, as recent reports suggest that the iPhone 15 Pro’s 5G modem chip delivers up to 24% faster speeds compared to its predecessor.
The revelation comes courtesy of SpeedSmart, a trusted internet speed measurement tool known for its accuracy. SpeedSmart conducted comprehensive tests on the iPhone 15 Pro and Pro Max, focusing on 5G communication speeds across major American carriers, including AT&T, T-Mobile, and Verizon. The results are nothing short of impressive.
On all three carriers, the iPhone 15 Pro exhibited superior 5G communication speeds, with a notable surge in download speeds. Among them, Verizon’s network experienced the most significant improvement, with the iPhone 14 Pro averaging 195.83Mbps download speed and the iPhone 15 Pro clocking an average of 243.06Mbps, marking a remarkable 24% increase in download speed.
T-Mobile witnessed a 22% improvement, with the iPhone 15 Pro delivering the fastest average 5G download speeds at an impressive 300.92Mbps. AT&T, not to be left behind, recorded download speeds 14.6% faster, averaging at 204.34Mbps. However, it’s worth noting that upload speeds remained relatively consistent across all three major carriers.

The driving force behind this remarkable surge in 5G performance is the upgraded modem in the iPhone 15 Pro and Pro Max models. Although Apple has not officially disclosed the specific modem in these devices, SpeedSmart suggests that the Pro models employ Qualcomm’s cutting-edge Snapdragon X70 modem. This modem comes with three key advantages: significantly reduced power consumption, improved 5G carrier aggregation capabilities, and enhanced connectivity, especially when the iPhone is farther away from a cell tower.
With these advancements at play, SpeedSmart’s tests conclusively demonstrate that the iPhone 15 Pro and Pro Max offer up to 24% faster 5G speeds than their predecessors, the iPhone 14 Pro lineup.
Despite rumors swirling about Apple’s development of in-house 5G modems, the company has extended its modem supply agreement with Qualcomm until 2026. This extension suggests that Apple may not introduce its own modem technology until several more generations of iPhones, ensuring that users can continue to enjoy cutting-edge 5G performance in their Apple devices for the foreseeable future.