For beginner using a phone to learn is absolutely no-go. You will need as much space as you can at affordable price. Best to start with you will need at least laptop with good size screen (doesn’t need to be expensive, just large screen) and the best I could advise you with is either laptop with availability to connect to another screen (2 screens setup) or PC with same setup. When you stop doing your thorough research and be confident with what you do, then you can try your phone only but that’s going to take you at least year if not more.
Now for PC (with Weirdows ten installed) you will need either SSD hard drive or at least 8GB RAM or both. Video in laptops is usually using your RAM so you will want to upgrade your RAM very soon if laptop will be your choice. You can’t really upgrade Surface. When you expand your knowledge, you will be looking at more information than just your charts.
FYI my setup is a bit advanced but better be safe than sorry. Desktop PC with Intel i5, 16GB RAM, 2x SSD (Raid 1 - if one disk fails other one still works) and 2 screens via DisplayPort (1x 4k, 1x 2HD) and of course UPS for everything internet related.