You won't be making movies with RX100 III, but it can shoot video that's perfectly fine for online posting. A clip of a piano player in the park shot at 1080p and 60 frames per second showed smooth movement, as you can see in people walking by in the background.
Lovely photos with plenty of detail; high-quality OLED viewfinder; clean low-light photos; solid, all-metal chassis; extremely compact
Sluggish autofocus; occasional autoexposre glitches; jerky HD video at 24fps; pricey