While mobile phone is convenient, it’s worth noting that at times device with larger screen size e.g. tablet, laptop or desktop could offer a much better viewing (user) experience, especially for the learning activities we will be interacting here in the learning system.
If you are using mobile phone, you can enable-to-rotate the screen horizontal for a better clarity.
The choice is yours, on any devices, at your preference and convenience.
The absolute advantage of flexibility with technology : we create experiences that deliver.