My favorite device.

My favorite device is iPad. I just love big large screen. My Laptop also has big large screen but my laptop is not convenient to carry, because it is big and heavy. iPad is smaller than laptop so it is more convenient to carry. In addtion, ipad's screen is bigger than iPhone. Usually I usually watch movies or YouTube videos on the way to school. If I watch them  on my with iPhone.... I don't want to imagine. Maybe I can't watch movies for more than 30 minutes. As you know watching movies on small screen can makes your eyes hurt.
Except that, Ipad has many merits. I can use it instead of cellphone. It is very important for me. Because my cellphone is so old that battery is quickly abrasive. I don't know when my phone dies (turn off/ out of battery/ shut down) . That's why I use iPad for suffering the internet. Than  So I can save battery of my phone. I used iPad very usefully when I traveled. I find Ipad useful when travelling. I can look up information, such as hostel, train, bus...  I found some information for traveling. like hostel, train, bus. I could use internet every Starbucks. So I looked for street to go to hostel and captured the map. Also I send many times in the train and bus during the traveling. At that time When there's no wi-fi so ,I can read some offline books before which I downloaded . And I took a picture with iPad when my cellphone died. Last but not least, I can use Ipad to take photos when my phone is out of battery
And now I study with iPad. Most my class have many materials. I download the class materials on the iPad before the class. It is very useful and save papers. Also I can study anywhere if I have iPad. Actually I don't study except I'm in class. But maybe someone want to study anywhere. That's why I love iPad.

What is your favourite device?