Keep size the same on different mobile devices

hi i have 2 mobile phones on the Note 10 the paragraph text is smaller than on a smaller Hawaii device, i have checked apple.com and also weblfow.com and they manage to keep the font the same size on both , and using inspect webflow just uses rem.

At the moment my paragraph is 1 rem but the text size is so different on the 2 devices


Hope you can help


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