In February 2015, CBRE Inc. published its APAC Consumer Survey for Japan. A survey of 1,000 Tokyo shoppers found that 59% check prices/product details in physical stores, while 89% do so online with a laptop/desktop. However, 83% actually buy at physical stores, while 89% buy using their computers. Numbers buying through smartphones, tablets and mail order catalogues are 20%, 11% and 16% respectively.  

Source : 28 February 2015/CBRE/Tokyo/RET