I use a Motorola DynaTAC 8000X. It's a little heavier than some of the newer phones, but it works great.
Recommend you buy a Motorola Razr (unless you need a smart phone). They are pretty cheap now, about $30 or $50 with a contract, are very reliable, long battery life, speakerphone is good, slim profile to put in pocket or purse if you like (no need for a case, unless you prefer), and NO stupid antenna sticking out to catch on your clothes when you pull it out of your pocket. They have an internal antenna, and pick up signal very very well. ... Have other handy features: calculator, world clock, calendar, notepad, alarm clock, yada yada ...
Over 50 million plus Razr's sold worldwide and counting now. They're so popular 'cause they're a good & practical phone. The old Moto Startac was a great phone, but now I think the Razr is even better. My wife and I each have a Razr, and are both happy with them.
I use a Motorola DynaTAC 8000X. It's a little heavier than some of the newer phones, but it works great.