First Design

One of the design options are shown below:

 The design above is a much more advanced version of the already existing calorie counting wristband. Below is a list of advantages and disadvantages regarding this product:



Advantages:

• A sim card can be inserted into the wristband
• It possesses an ios system and can therefore be connected to iTunes and contacts can be imported easily.
• The display can be charged in the place called USB (it has two sections) 
• All info can be accessed on the wristband itself
• These is a clasp to close it which is easy to use
• Music can both be played using speakers and headphones
• A go pro can be attached
• It is a good and light size for a wristband

Disadvantages:

• It is not a flexible material
• It is not waterproof and not safe to use while swimming
• the camera is hard to use as the attachment means that the arm needs to be held in an uncomfortable position
• The screen is very small and therefore, may require a stylus 
• The size may not fit all (S, M, L option)