Sheikah Slate

The Sheikah Slate is an item in.

Location and Uses
The Sheikah Slate is a multipurpose tool bearing the Eye Symbol of the Sheikah. Link obtains it shortly after being awakened by a disembodied voice in the Shrine of Resurrection. Though Link has no recollection of seeing it before, he finds it familiar.

The Sheikah Slate can be used to access a map of Hyrule. The map displays Link's current location, the current temperature, and locations of certain objectives. It can also act as a key to grant access to any of the many Shrines of Trials and Sheikah Towers located across Hyrule.

Scope
Link can use the Sheikah Slate as a Scope when the right analog stick is clicked down. In addition to providing a closer view, the Scope ability provides a first-person view from which Link can set Beacons and also determine an enemy's health by positioning the reticle over said enemy.

Rune Abilities
The Slate is able to receive Runes, a form of information that bestows the device a number of different abilities. These Runes can be obtained and installed onto the Slate at a number of Shrines of Trials found throughout Hyrule.