Ionic 3 - real device tablet's design is not same to mobile device's design

Hello, Let me start by saying that the budget for this project is 15 euros, most of you will very likely fix this bug very easily. Also, I need the solution to be delivered to me today. Long story short: I have an Android application. In emulators and in "ionic serve" the app design for the tablets is perfect, but once you use a real device tablet to check the design out, it is nowhere the same as it is displayed, for example, in "ionic serve". I need the design to be exactly the same as it is in real device mobiles as it looks perfect in them. Best regards, Paul