I read the title and immediately thought that this is an outrageous price for something that my phone can do for a few dollars a month (cheap data plans in Indi

I read the title and immediately thought that this is an outrageous price for something that my phone can do for a few dollars a month (cheap data plans in India), and then I saw the form factor, and the amazing battery life. The question is: can it display the equations that Mobile Wikipedia + my phone have trouble doing?