What is an Upgrade Item in Genshin Impact?
Upgrade items are a special kind of Best item upgrader that can ensure that Pokemon evolve. They can be obtained by spinning Pokestop discs, or as rewards for events related to evolution.
They can be put into armor, weapons trinkets, weapons, or gathering tools to add stats or effects. Some upgrades have a cosmetic effect.
Upgrade components
Upgrade components can be added to trinkets, armors, and Best item upgrade weapons in order to add a bonus effect or a special feature while the equipment is being used. They can be purchased from vendors, looted, earned as rewards, or even dropped. Upgrade components must be higher than the item upgrade they are added to. Most require that the Best item upgrader be equipped with an item upgrade slot. Upgrade components can be swapped with other upgrade components, except for inscriptions or glyphs, which can be added or removed freely.
The most commonly used upgrade components are gems, infusions and enrichments.