Nikon D5300 is btter than canon EOS 800D
Because the option in the canon EOS 800D are similar to the options in the nikon D5300 and the price tag also less copare to canon
Both have Wi-Fi n HDMI connection and same quality of video resolution of 1080 pixel of hd video . n 24.4p for picture resolution and commen sensor and both hvae rechargble battery .
Both have same display but resolution is little more in canon and supporting to Windows 10/8/8.1 , 7 / mac osx 10.9/10.10/10.11
And many small changes are there . but . improtent needs are present in nikon
But its not much difference between canon EOS 800D and nikon D5300
Buying canon at hight price we can buy nikon with samll price . with in 50 k
So I prefers nikon D5300 . than canon EOS800D