Yes, the Xiaomi Redmi Note 8 does have an IR Blaster.
The IR blaster helps the user to operate electronic devices with the use of the phone with easiness.
Check more about IR Blaster-
Check Full Device Specifications Xiaomi Redmi Note 8
Xiaomi Redmi Note 8 comes with a Dedicated Sim Slot.
The device comes with Triple Sim Slot.This lets the user to have Two Nano Sims and a microSD card at the same time.
In the meantime, do not forget to find all the detailed specifications and other latest updates related to Xiaomi Redmi Note 8 here.