2 MP, f/2.4, depth
Charges from 1% to 50% in 29 min advertised
No, Realme 11 does not offer any kind of IP rating and it is not waterproofed.
Realme announced 1 major Android updates. So last update will be Android 14.
Realme announced 2 years of security updates for Realme 11, so it will receive patches approximately until 2025.