The smartest phone I would ever own would only have GPRS or EDGE dial-up service.
Nothing fancier. I usually place calls and texts. Unless I’m patching my cel phone to my computers, I only *need* GPRS/EDGE.
A Motorola RAZR would suit me well, if I could find either an unlocked model, or one locked to VoiceStream Wireless...I don’t remember Big Magenta ever selling the RAZR...back then, they were the laughingstock of the wireless industry...
Works for me and the battery will last for a week most of the time.
http://www.amazon.com/Nokia-X2-Prepaid-Phone-T-Mobile/dp/B004O0U4X0