Samsung Electronics has officially released the Exynos 5400, its first 5G modem that supports two-way satellite communication.
This modem is incorporated into the Exynos versions of the Galaxy S24 and Galaxy S24+ smartphones and is expected to feature in the upcoming Google Pixel 9 series.
Despite its integration, satellite communication capabilities are not enabled in these models.
The Exynos 5400 is notable for its support of NB-IoT NTN and NR NTN networks, enabling two-way satellite communications such as emergency messaging even without cellular network coverage.
It also supports both mmWave and sub-6GHz 5G frequencies, with enhanced 4×4 MIMO on sub-6GHz and 2×2 MIMO on mmWave.
This modem is the fastest in the Exynos series to date, thanks to its support for FR1 and FR2 bands NR dual connectivity (3GPP Release 17), boasting a peak download rate of 14.79Gbps.
It achieves up to 11.2Gbps download speed on the FR1 band alone using 1,024 QAM modulation across five carrier aggregations.
Manufactured using Samsung’s 4nm EUV process, the Exynos 5400 is also touted as the most energy-efficient 5G modem developed so far.
Although included in the Galaxy S24 and S24+, the NTN connection features remain inactive, so these devices do not support satellite communications.
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