Here is the QKFone WF820, a watch phone. In such a tiny body, the WF820 sportswith a 1.4-inch 260k color LCD touchscreen, FM tuner, Bluetooth connectivity and support for MP3 ringtone and playback. The phone supports quad-band GSM and GPRS networks.
As you can see in the pictures, the WF820 comes with the number keys. It measures 58x42x18mm and weighs 80g.