Worldwide and in each country surveyed, the most-used combination of devices is to have a home computer, a smartphone, and no tablet. Having all three of these or only a smartphone are 2nd and 3rd and nearly equal. In Germany and China, using only a smartphone is ranked a distant 3rd. Conversely, in Japan, using all three is a distant 3rd. There is no significant difference by age group. Report [TUP_doc_2024_0125_comb] in TUP Lenses: Devices; PCs; Mobile Phones; Tablets