T-Mobile has announced a record-breaking achievement in 5G speeds, reaching 6.3 Gbps using 6-Carrier Aggregation in collaboration with Nokia and Qualcomm. The test was conducted on T-Mobile’s 5G Standalone (5G SA) production network, utilizing both commercial and test devices, including a Samsung Galaxy S25 and a mobile test device with Qualcomm's newly announced X85 5G Modem-RF.

The first test, conducted with a Samsung Galaxy S25 and Qualcomm’s Snapdragon X80 5G Modem-RF System, achieved 4.3 Gbps in real-world conditions. In the second test, using Qualcomm's X85 modem on a non-commercial test device, speeds reached 6.3 Gbps, demonstrating the next evolution of 5G Advanced.

This achievement combines low-band and mid-band spectrum across T-Mobile’s owned frequencies (2.5GHz, PCS, AWS, and 600MHz), providing a foundation for future 5G advancements. The milestone highlights T-Mobile’s leadership in network innovation and its commitment to delivering faster, more reliable connectivity for customers.

T-Mobile, Nokia, and Qualcomm emphasize that this breakthrough will not only enhance current network performance but also lay the groundwork for the next generation of 5G applications.