Upgrade the wrist thingy to a GLCD. You can get a 128 x 160
Don't you think its too big for a wrist even a GLCD 128x64 is Big also the size of a Wrist mountable LCD would be > Wrist watch as much big as it doesnot become a overhead on your wrist.
I think the LCD the one i attached is the most appropriate, rest is your choice 
