Qualcomm walked into MWC 2026 with what looks like a modem announcement; looking at the roadmap, it may have quietly previewed the Galaxy S27 Ultra’s biggest under-the-hood connectivity upgrade.

The new Qualcomm X105 modem-RF system is the world’s first 3GPP Release 19-ready platform. Release 19 is not just another incremental 5G Advanced step. It lays the groundwork for early 6G development and testing.

This is the modem that might anchor the Snapdragon 8 Elite Gen 6, or possibly a Gen 6 Pro variant, which makes it the prime candidate for Samsung’s 2027 flagship. It makes Galaxy S27 Ultra the strongest contender for the modem.

Peak download speeds hit 14.8 Gbps, with up to 13.2 Gbps on sub-6 GHz alone. Uplink throughput climbs to 4.2 Gbps, addressing one of the persistent bottlenecks in heavy cloud and creator workflows.

There is the 6nm RF transceiver, which Qualcomm claims has up to 30 percent lower power consumption and a 15 percent smaller board footprint.

The X105 also introduces an integrated fifth-generation AI processor inside the modem itself. The modem can detect and classify traffic types, then optimize them based on the user scenario.

Satellite support is another headline feature.

Qualcomm X105 integrates NR-NTN for video, voice, data, and messaging over satellite. A Galaxy S27 Ultra equipped with this modem could realistically handle satellite video calls in areas with zero terrestrial coverage.

If Qualcomm’s X105 is baked into Snapdragon 8 Elite Gen 6, then the Galaxy S27 Ultra is shaping up to be less about CPU benchmarks and more about intelligent, AI connectivity that redefines what “always connected” actually means.

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