Pls help me i wanna know that dose zorin os 15 lite and 16 lite has same system requirements

The only difference is that Zorin 16 Lite won't run on 32bit Computers whereas Zorin OS 15 Lite can. Everything else is the same. From Zorin OS 16 onward Zorin will not support 32bit Computers. However, Zorin 15 Lite is supported till 2023.