The headline differentiator here is cellular capability. The Realme 14x supports 5G, while the Redmi Note 14 4G is limited to 4G — a distinction baked right into the latter's name. This directly explains the vast gap in peak download speeds: 3300 Mbps on the Realme versus 650 Mbps on the Redmi. For users in areas with 5G coverage, that translates to faster streaming, quicker downloads, and more headroom as networks continue to expand. For those in 4G-only regions, however, this advantage is entirely moot.
The Redmi Note 14 4G counters with two sensor advantages: a gyroscope and an infrared sensor, neither of which the Realme 14x carries. The gyroscope enables more accurate motion-based features — relevant for augmented reality apps, immersive gaming, and precise screen rotation. The infrared sensor allows the phone to function as a universal remote control for TVs and home appliances, a niche but genuinely useful convenience the Realme cannot replicate. Everything else — Wi-Fi 5, Bluetooth 5.3, NFC, USB-C, dual SIM, expandable storage, GPS, and fingerprint scanner — is identical across both devices.
Declaring a winner depends entirely on the user's context. The Realme 14x 5G holds the bigger structural advantage for future-proofing and network performance where 5G is available. The Redmi edges ahead for users who prioritize sensor versatility. For most buyers, 5G support will be the deciding factor in this category.