Which cell phone should I buy for my grandmother?

I am guessing that your grandmother is like mine and anything more than one button is to fancy for her to work. Here are some simple cell phones for seniors you might like.
The jitterbug has an easy to read keypad that makes dialing easy, bright color screen displays numbers with clarity. The patented design delivers clear sound and reduces background noise and has no confusing menus. Access all options with simple 'YES' or 'NO' questions, bluetooth and caller ID enabled. With a friendly 30 day return policy and no contracts or prepaid hassles.
 Another good choice is the Pantech Breeze with an intuitive cell phone design. Every aspect makes it easier to use, including a sleek streamlined design, an extra large color display, simplified user interface, and lighted EZ One-Touch Quick Call Keys. Whether you take photos or videos, surf the web, download ringtones, play games or simply make calls this phone is a breeze to use!
The ClarityLife C900 Amplified Mobile Phone is twice as loud as an ordinary cell phone and offers large buttons for easy dialing. The simple slider design, with a full keypad of large half-inch sized buttons that slides out when you need to dial a number. When fully closed it measures only 4 and a half inches in length. With a thickness of only one inch, the C900 will fit comfortably in your pocket or purse. The C900 weighs 5.4 ounces, which is about the same as a bar of household soap.