Beyond SOS: Samsung’s Exynos 5410 Brings 5G Video Calls to the Middle of Nowhere

Samsung has recently unveiled its latest 5G data modem, the Exynos Modem 5410. Manufactured using a 4nm process, the chip has already entered mass production and is widely expected to become a standard component of next year’s flagship Galaxy S26 series. Its most striking feature is a comprehensive upgrade to satellite communication capabilities, including the ability to conduct video calls directly via satellite.

At present, satellite connectivity on smartphones is largely confined to text-based emergency SOS messages. The Exynos 5410, however, clearly aims to go much further. According to Samsung, the modem supports all three core satellite communication technologies:

NB-IoT NTN (Non-Terrestrial Network for IoT): A foundational implementation designed for location sharing and basic text transmission in remote areas, similar to existing emergency SOS services.
LTE DTC (Direct-to-Cell): An expanded capability that allows smartphones to place voice calls directly through satellite links.
NR-NTN (5G Non-Terrestrial Network): Enables standard smartphones to connect to 5G satellite networks, delivering sufficient bandwidth to support video calls and large file transfers.

This means that, in the future, carrying a Galaxy S26 into the wilderness will allow more than just sending coordinates for rescue—you may even be able to stream live video to friends via satellite bandwidth. In terms of raw performance, the Exynos 5410 delivers remarkable data throughput. By supporting 5G NR dual connectivity and simultaneously leveraging FR1 (Sub-6GHz) and FR2 (millimeter-wave) bands, it achieves peak download speeds of up to 14.79 Gbps. Even when operating solely on the FR1 band, bandwidth aggregation of up to 380 MHz enables transfer rates as high as 11.2 Gbps.

To address emerging security threats, the chip integrates ROM-based hybrid post-quantum cryptography (PQC) and incorporates a dedicated secure element to encrypt sensitive data such as IMEI numbers, protecting against future quantum-based attacks on conventional encryption schemes. Notably, Samsung’s recently disclosed Exynos 2600 processor design does not integrate a 5G modem. As a result, the Galaxy S26 is expected to adopt a discrete configuration, using the Exynos 5410 as a standalone modem to connect to cellular networks.

This approach was common in early 5G smartphones, such as the iPhone 12 and devices powered by the Snapdragon 865. Its advantages lie in greater modem performance and operational independence, while its drawbacks include increased motherboard space requirements, higher power consumption, and more challenging thermal management compared with integrated system-on-chip (SoC) designs. The arrival of the Exynos 5410 nevertheless signals a broader shift in mobile satellite communication—from narrowband, text-only transmission toward a broadband era capable of carrying images and video. While Apple and other competitors continue to emphasize emergency-use scenarios, Samsung is seeking to redefine satellite connectivity as a routine means of communication.

For enthusiasts, however, the greatest concern remains the discrete design itself. Historically, power efficiency has been a persistent weakness of Exynos platforms. If the Galaxy S26 does indeed adopt a discrete modem architecture, whether the Exynos 5410 can deliver high-speed satellite connectivity while keeping power consumption firmly in check will be a decisive test—one that may ultimately determine whether the Galaxy S26 can reclaim its former glory.

Rate this post

Related Posts:

Found this helpful?

Leave a Reply Cancel reply