Looking for comparison of Keurig B140 versus Keurig K150 or it is also named B150, check this summary. Keurig B140 comes with 3 Choices of cup size (6 oz., 8 oz. and 10 oz.), in other hand K150 comes with bigger choices of cup size (4 oz., 6 oz., 8 oz., 10 oz. and 12 oz.) and K150 or B150 also has a part that B140 doesn't, that is Direct-water-line plumbing. check out the detail related what are pros and cons through buyer experiences below.

BUY: Keurig B140 | Keurig K150