For portability in a pocket, it is hard to beat some of the smallest mobile phones. Fitting in the palm of your hand, these tiny phones lack many of the features of larger phones but are extremely portable and easy to use. Relying on microSD cards for memory, these phones include a digital camera, media player, and Bluetooth technology. Some packages include 3.5 mm earphones as well. The batteries are charged through a microUSB port. Available on eBay, these mini phones are great for parties, beach outings, and other events where you would not want to risk losing a more expensive smartphone. Some even come on chains for wearing on your wrist or as a necklace. The average small phone measures 75 mm by 34 mm by 12 mm or less, which is slightly larger than a key fob. So, if you want phone functionality that can easily slip into a clutch bag or jeans pocket, then pick up one of these diminutive mobile phone devices for your next night out.