Czechia and Slovakia are two of the countries people most often shortlist together when moving to the EU. Below is an honest side-by-side on the things that shape daily life, with the stronger country marked on each row. On these measures Czechia comes out ahead on 7, Slovakia on 2.
Rent is the clearest split: a one-bed runs about EUR 750 a month in Czechia against EUR 600 in Slovakia, so Slovakia saves you roughly EUR 150 every month.
Typical net pay is EUR 1,400 a month in Czechia and EUR 1,200 in Slovakia, putting Czechia EUR 200 ahead before anything else is counted.