How big is Flow? Plume Team September 23, 2017 06:55 Updated Follow Flow dimensions: 125 x 40 x 35 mm (Flow with strap) 56 x 56 x 33 mm (Dock) Related articles What happens to my data? When will Flow pre-orders be shipping? Is Flow available in my country? What pollutants does Flow measure? Is Flow Waterproof? Comments 0 comments Article is closed for comments.