Here is an unusual wearable gadget. Seems like a digital watch, the wearable item is actually an ordinary calculator from Sir Clive Sinclair. Plainly speaking, it is just a wrist calculator. So, the use of the wrist calculator is restricted to computation only. Being a calculator, it does possess 8 digits and a red LED. Its size is 47×45x18 mm. The calculator uses 6x mercury cells and an integrated circuit (Mostek MK50321N). Its price is something around $20. Designed in 1977, the wrist calculator is not a cool gadget in a real sense. Anyway, it is a great work by Sinclair as it was quite an improvement for its time.
Via: Boingboing Gadgets
