via official site (
http://www.nintendo.com/switch/features/)
System battery life
Battery life can last for more than six hours, but will vary depending on the software and usage conditions. For example, The Legend of Zelda™: Breath of the Wild can be played for roughly 3 hours on a single charge.
Internal memory
32GB of internal memory, a portion of which is reserved for use by the system. Users can easily expand storage space using microSDXC cards.
Screen
6.2-inch, multi-touch capacitive touch screen; can display a
resolution of 1280 x 720.