We took feedback from some elder people in the neighbourhood about our designs and the following were the conclusions :
1. Keychain model would be the best to handle and portable, they can wear it like they can keep it in their shirt and pant pockets. or in their purse.
2. With wristwatch they won't feel comfortable to wear them, especially elderly women suggested they won't wear it in functions or events, so, therefore, keychain watches would be better.
3. They preferred to have battery cells rather than chargeable devices
4. Also, it would be helpful if those keychains are made of string materials so that they don't get damaged easily.
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