The connectivity gap between these two phones is considerable. The most headline-level difference is 5G support: the Redmi Note 15 5G has it, the Galaxy A07 4G does not. Beyond future-proofing, this directly impacts peak data speeds — the Redmi's maximum download speed of 2900 Mbits/s dwarfs the A07's 650 Mbits/s, and its upload ceiling of 1600 Mbits/s versus 150 Mbits/s is an even starker difference. For users in 5G-covered areas who frequently stream, download large files, or rely on fast mobile data, this gap is immediately felt. Both share the same Wi-Fi standard support, dual SIM slots, USB Type-C with USB 2.0, and expandable storage, so those bases are evenly covered.
The Redmi also leads on secondary connectivity and sensors. It adds NFC — enabling contactless payments and quick device pairing — which the A07 entirely lacks. Beyond that, the Redmi includes a gyroscope, compass, and infrared sensor, none of which are present on the A07. The gyroscope matters for gaming and augmented reality applications; the compass is relevant for navigation accuracy; and the infrared sensor allows the phone to function as a remote control for TVs and other home appliances. The A07's only noteworthy advantage here is its slightly newer Bluetooth 5.3 versus the Redmi's 5.1, which offers marginal improvements in connection stability and efficiency.
The Redmi Note 15 5G holds a decisive advantage in this group. Faster cellular speeds, NFC, and a richer sensor suite collectively represent a substantially more capable and versatile device — and the A07's minor Bluetooth version lead does little to close that gap.