India, May 14 -- Given that we are all reeling under the threat of the Covid-19 pandemic and are constantly scared of contracting the virus, it has become all the more important to keep a tab on our health. Keeping an eye on vitals such as blood oxygen levels, blood pressure, blood sugar, heart health, among others, both for ourselves and our loved ones can be helpful. And there are medical gadgets available in the market for these purposes....