Chosen Solution
Watch face cracked when it fell off wrist and hit the floor, face down.
Most Smart watches have replaceable lenses . If you contact the company you may be able to get a replacement . To open the watch just pry around the edges with a guitar pick or plastic card like a credit card. try not to use anything metal to pry with as you may go in to deep and damage the internal circuitry of the watch. Once you have the face removed just push on the glass and it should pop out. If not it may be glued , if so heat from a hair dryer or heat gun will soften the glue and then you should be able to push it out. Hope this helps