iPhone 18 Pro Trails iPhone 17 Pro by 3.7 Seconds on Reconnection as C2 Wins Weak-Signal Test
Updated
Updated · zeera wireless · Sep 16
iPhone 18 Pro Trails iPhone 17 Pro by 3.7 Seconds on Reconnection as C2 Wins Weak-Signal Test
3 articles · Updated · zeera wireless · Sep 16
Summary
10 reconnection trials showed the iPhone 18 Pro averaging 5.2 seconds to regain service after signal loss, versus 1.5 seconds for the Qualcomm-equipped iPhone 17 Pro.
14 strong-5G speed tests also favored the iPhone 17 Pro, with the iPhone 18 Pro nearly 20 Mbps slower on downloads, about 30 Mbps slower on uploads and 1.4 ms higher on latency.
An underground-garage test flipped the result: the iPhone 18 Pro posted faster download and upload speeds and 1.2 ms lower latency under weaker reception.
Elevator calls connected on both phones with similar intermittent audio, leaving no clear call-quality winner in this comparison.
The mixed results suggest Apple’s C2 modem is not a clear upgrade for signal alone, and performance may vary by carrier, network load and location.