Here is a smartphone pen with Bluetooth designed to help you stay connected. The SERVO K07 has a 0.96″ display and 300mAh battery. It comes with a camera, FM radio, audio recorder, dual SIM cards, and smartphone contact sync. You can even use the device as a flashlight.
The SERVO K07 comes as an unlocked device. It supports TF cards up to 32GB. The battery lasts up to 7 hours. You can also use this device simply as a pen.[where to get it]