Durability

Glass durability refers to the amount of time a user is able to watch content in a single energy depletion. The durability of a glass increases with levels and across glass types.

This graph illustrates the difference in maximum watchable time/full depletion of glasses between each type of glass across levels 1-30. The difference is due to the base durability being higher for glasses on a higher level which leads to a longer watchable time.