Table 3.

Shows the comparative advantage and disadvantages of our device and commercially available low-cost smart band devices.

Types of devices	Advantages	Disadvantages
Smart band devices (Watch based vital sign monitoring, Everlast TR10, BodiMetrics device, Patch monitors, etc.)	1.Continuous intermediate-term monitoring is possible 2.Minimally obtrusive for an external device 3.Well tolerated 4.Can be able to monitor blood pressure, heart rate, skin temperature, oxygen saturation, etc. 5.Helps to monitor physical activity, portion sizes of the food they consume, allowing them to be more active and eat healthier at all times. 6.Can track activity, nutrition, and calories burned 7.Fashionable 8.Most of them are inexpensive. 9.Designed in a compact way (watch form).	1.Limited Battery Life. 2.Not accurate enough to be used to monitor vital signs. 3.Most of them are not validated to be used for the patients. 4.Most of them are designed for luxury than for real monitoring purposes. 5.Not habituated/recommended in hospitals. 6.Depending on the duration of monitoring, likely to miss a significant fraction of (Paroxysmal atrial fibrillation)PAF. 7.3 Extended monitoring may require ≥ 1 patch. 8.Difficult to maintain locally during failure. 9.Not contain any notification alarming system during abnormality.
Our device (Lvital device)	1.Inexpensive 2.Able to continuously monitor three vital signs (blood pressure, heart rate, and body temperature). 3.Shows good promising accuracy upon a testing sample from volunteers. 4.Designed for focusing on monitoring of pregnant women's vital parameters, not for fashion and luxury purposes. 5.It would not be disseminated commercially before validation. 6.Has integrated a GSM technology. 7.It only needs 5v voltage sources.	1.Large size as compared to smart bands. 2.The GSM system needs a mobile network to operate. 3.Even if the sunrom blood pressure sensor can monitor the blood pressure without a cuff, it is very sensitive and needs the correct positioning of the subject.