Ring’s foray into smart locks brings a first-of-its-kind feature that solves one of the categories biggest pain points. Amazon.com Inc.’s Ring brand unveiled its first smart lock, with an innovative feature that addresses the dreaded scenario of arriving home to a dead battery. Key points and original sources are listed below.

• Ring’s foray into smart locks brings a first-of-its-kind feature that solves one of the categories biggest pain points.S1

• Amazon.com Inc.’s Ring brand unveiled its first smart lock, with an innovative feature that addresses the dreaded scenario of arriving home to a dead battery.S2

• Amazon announced its first smart lock that eliminates the need for a physical backup key should its rechargeable battery die while you're away from home. While other smart locks lean on hidden USB ports or metal contacts for connecting a 9-volt battery to repl...S3