For example, players can use the Purah Pad's chest sensor to determine if there is another chest nearby.

Source: https://gamerant.com/zelda-breath-of-the-wild-chest-behind-shrine-tears-kingdom/

The main draw of Hateno Village in is the Hateno Ancient Tech Lab, where Purah can upgrade Link's Sheikah Slate.

Source: https://gamerant.com/zelda-tears-kingdom-totk-hateno-village-botw-flaw-side-quest-cece-mayoral-election/

The Purah Pad is developed by an eccentric Sheikah scientist named Robbie, who offers Link various enhancements to the device.

Source: https://gamerant.com/zelda-tears-of-the-kingdom-filling-out-compendium-quest-guide/

When players go to the shelter for the first time before speaking to Purah and activating the nearby tower, the passage won't be open.

Source: https://gamerant.com/zelda-tears-of-the-kingdom-get-more-health-containers-hearts-stamina-how-increase-lights-of-blessing-vessel/

You can earn up to three of them and, along the way, earn some other great upgrades to your Purah Pad as well.

Source: https://kotaku.com/tears-of-the-kingdom-totk-fast-travel-medallions-where-1850581311