Yeah, I was thinking about that, and it occurred to me that even the display is probably pretty efficient since it’s not that much bigger than, say, a large iPad pro. It’s just wild to me how little power this thing uses.
The large iPad Pros have the advantage of using OLED displays rather than an LCD. Give the iPad screen an automatic power advantage because all of the light generated by the screen is emitted at the user, unlike an LCD where a substantial chunk of the LCD backlight is absorbed by the LCD layer.