Samsung has officially launched the Exynos 5400 5G modem. It is similar to the modem that was used in the Exynos variants of the Galaxy S24, and Galaxy S24+ and will appear in some next-gen Pixel devices – Pixel 9, Pixel 9 Pro, Pixel 9 Pro XL and Pixel 9 Pro Fold will launch later this year.

Exynos 5400 is a 4nm 5G modem with NTN network support and download speeds of up to 14.79Gbps

The Exynos 5400 is Samsung's first modem with built-in support for NB-IoT NTN and NR NTN networks, helping to send text messages even when there is no mobile network nearby thanks to two-way satellite connectivity. In addition, the phone also has emergency SOS. Besides, the modem also supports both 5G mmWave and sub-6GHz networks. It has 4×4 MIMO in sub-6GHz and 2×2 MIMO in mmWave 5G networks.

It's also the fastest Exynos modem ever, achieving download speeds of up to 14.79Gbps thanks to dual NR connectivity support for FR1 and FR2 bandwidth (3GPP Release 17). It is also the first solution that can aggregate five carriers (3x 100 MHz + 2x 40 MHz) for theoretical download speeds of up to 11.2 Gbps with 1,024 QAM on the FR1 band. It is considered more effective and reliable than using the FR2 frequency band.

Samsung claims that the Exynos 5400 is the most energy-efficient 5G modem because it is manufactured using Samsung Foundry's 4nm EUV process. Although the Galaxy S24 and Galaxy S24+ also use this modem, they do not feature NTN connectivity because they lack two-way satellite connectivity to make SOS emergency calls and send text messages without the need for a mobile network.