Anyone who has ever owned a smartwatch can tell you that they are great as long as they are charged nightly (or at least every other night). A watch from a Chinese firm Mobvoi dubbed the TicWatch Pro claims to be able to provide up to 30 days of battery life via a 415mAh battery.

It can achieve that long battery life due to the fact that

Source: Hot Hardware – Mobvoi TicWatch Pro Dual-Screen Wear OS Smartwatch Impresses With Crazy Long Battery Life