Live prototype via Figma at the end of this post.
Track and motivate users to wash their hands properly.
In the current COVID-19 epidemic, in addition to wearing a mask, it is also essential to wash your hands. However, we may not have washed our hands as well as we thought.
According to the research conducted by the University of New South Wales and published in 2015 by the American Journal of Infection Control (AJIC), people touch their face 23 times an hour on average, of which 10 touches are to the eyes, nose or mouth – the main pathways that can lead to bacterial or viral infection. This connection between our hands and our faces makes hand washing the most basic step in personal hygiene.
Our hands can harbour a nasty colony of illness-inducing bugs including E.coli, salmonella, clostridium difficile, campylobacter, the superbug MRSA (which is resistant to certain antibiotics), as well as cold and flu viruses and norovirus, the winter vomiting bug.
According to a 2013 study by Michigan State University, researchers observed 3,500 people after using a public loo, up to a quarter of us only briefly wet our hands. The image below will use fluorescent agent to demonstrate the importance of frequent hand washing.
I let my friends wash their hands and ensure it's longer than 30 seconds. I used cotton swabs, took samples from a few dead spots, and put them into the petri dish. The pictures above represent bacteria and fungus remaining on of my friends' hands before and after. We can see that his hands were not clean, although he met the required time.
Using the correct steps and maintaining adequate hand-washing time is hugely important.
The range of people affected by Covid-19 is so broad that making a device or service that fits all populations and is easy to deploy is challenging.
So I decided to focus on one part of them first, students and workers in their 20s and 30s. This group is the most active in public social activities and is most likely not to comply with healthy habits.
As one of them, I will better understand their needs and find more suitable solutions.
Since smartwatches are different from mobile phones, battery life and readability are the top priorities. Due to the characteristics of OLED screens, highlighting information with bright colors on a black background is the best solution.
I chose vibrant, clean blue for the primary color. This refreshing color is derived from impurity-free water. Hope to convey a fresh feeling to users - washing their hands can help keep their bodies away from unnecessary infections and illness.
The basic and secondary colors refer to the design specifications of the watchOS, in order to maintain the unity of the design, thereby highlighting the functionality.
SF Compact is highly readable on small screens. This family of fonts increases the app's efficiency and conveys information more quickly and accurately.
[1] photo source: https://unsplash.com; [2] https://www.dailymail.co.uk/health/article-3269827/How-clean-hands-answer-revealed-unique-experiment-shock-change-wash.html; [3] illustration source: https://storyset.com; Some of the illustration in descriptions source: https://thenounproject.com, https://storyset.com.
