Redmi K50i 5G sports a 6.6-inch while Nord 2T has a 6.43-inch FHD+ display. But Redmi has an LCD panel while OnePlus offers the better AMOLED screen.
For Nord 2T, you will have to compromise with 90Hz refresh rate while the display of Redmi K50i refreshes at a higher 144Hz.
Redmi K50i is powered by Dimensity 8100 processor whereas OnePlus Nord 2T has an octa-core Dimensity 1300 chipset. The Redmi K50i is wins this bout.
Redmi K50i has 64MP Samsung GW1 sensor with 8MP and 2MP sensors. On the other hand, Nord 2T has a 50MP Sony IMX766 + 8MP + 2MP sensors. In real life both camera performs similarly.
If you are a fan of selfies, then go for the Nord 2T as it packs a 32MP front camera while the Redmi K50i offers a 16MP selfie camera.
Redmi K50i packs a 5080mAh battery with 67W fast charging while the Nord 2T ships with a 4500mAh battery with faster 80W charger.