There was a project on Kickstarter to create Gameband for gamers and with the money collected, finally they have made the band.
This is the first smartwatch for gamers. The specification of the device is:
1.6 inch AMOLED display
Qualcomm Snapdragon wear 2100 processor
512 MB RAM
4GM ROM
320x320 resolution
3-axis accelerometer
Gyro sensor
Light sensor
Wifi
Bluetooth 4.2
400mAh Battery
Micro SD slot
USB Type-C
It supports varieties of games. You can just plugin the device to any PC and play all your favorite games. You can carry all the games where ever you go along with you.