Samsung has officially introduced the Exynos 5 5400G modem. It is the same modem used by phones Galaxy S24 to Galaxy S24+. It will reportedly be used by several next-gen Pixel devices, namely the Pixel 9, Pixel 9 Pro, Pixel 9 Pro XL, and Pixel 9 Pro Fold, which are slated to launch later this year.
The Exynos 5400 is Samsung's first modem with built-in support for NB-IoT NTN and NR NTN networks. These allow phones and tablets using this modem to have a two-way satellite connection for messaging, even when there is no mobile network nearby. The modem also supports 5G mmWave bands (millimeter waves) and sub-6GHz. It supports the 2×2 MIMO standard within the first mentioned band and the 4×4 MIMO standard within the second.
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It's also the Korean giant's fastest modem, offering download speeds of up to 14,79 Gbps thanks to dual NR support for FR1 and FR2 bandwidths (3GPP Release 17). Using FR1 bandwidth is said to be more efficient and reliable than using FR2.
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Samsung also claims that the Exynos 5400 is the most energy-efficient 5G modem because it is manufactured using its subsidiary Samsung Foundry's 4nm EUV process. Even if phones are equipped with it Galaxy S24 to Galaxy S24 + (more specifically their Exynos variants), Samsung didn't use them their NTN connectivity features as they lack two-way satellite connectivity for emergency SOS and text messages without a mobile network.
