Free size-comparison site Pective scales product images for your LCD screen to full size, allowing you to make a side-by-side comparison of your current clunker to that hot new phone you’ve been eyeing. You’ll first be prompted for your diagonal screen size, then you simply browse and click to pull up full-size pictures. You can vote an image larger or smaller if it looks a little off, and add your own product images. There are a few handy reference points already there—nickels, compact discs, and the like—but the site would seriously benefit from a search function (which is supposedly in the works). Pective is a free web site that requires no sign-up; for geekier, you-type-the-dimensions comparison, try Sizeasy.