Much of the connectivity foundation is shared: both phones support 5G, Wi-Fi 6, dual SIM, USB Type-C, fingerprint scanning, and the same suite of motion sensors. The meaningful divergences, however, are worth unpacking. The Samsung Galaxy A56 5G includes NFC — absent on the Realme 15 5G — which enables contactless payments, transit cards, and quick device pairing. For users who rely on mobile payments, this is a daily-use feature that the Realme simply cannot replicate. Samsung also adds 2 eSIM slots alongside its 2 physical SIMs, offering exceptional flexibility for international travelers or anyone managing multiple numbers without carrying extra physical cards.
Cellular throughput splits in an interesting way. The Galaxy A56 5G advertises a significantly higher download speed of 5100 Mbits/s versus the Realme's 3270 Mbits/s, suggesting a more capable cellular modem for pulling data — useful in congested 5G environments. The Realme counters with a higher upload speed of 3270 Mbits/s compared to Samsung's 1280 Mbits/s, a notable advantage for users who frequently upload large files, livestream, or use video conferencing over cellular. The Realme also edges ahead with Bluetooth 5.4 versus Samsung's 5.3, a minor but forward-looking improvement in connection efficiency.
On balance, the Galaxy A56 5G holds the connectivity edge for most users. NFC alone is a concrete, everyday capability the Realme lacks, and the eSIM support plus superior download speeds add further weight to Samsung's side. The Realme's faster upload speed and newer Bluetooth version are real advantages for specific use cases, but they appeal to a narrower audience.