Users can become over reliant on the product which could result in a delay in medical intervention if an issue was to occur
Improperly wearing the device can result in skewed information, thus resulting in potential false positives or missing crucial information
Sending health data to ones phone from the device and via a mailing list can result in potential data privacy risks
Wear and tear on the elastic tube over time can result in a loss of elasticity that can provide inacurrate readings and general discomfort
Environmental exposure to things like sweat, oils and water can result in damage to components and thus effect overall performance
Compatibility issues as phones get more advanced, leading to issues with connectivity via the devices
Electronic components will add onto the ongoing issue of electronic waste and improper disposal of these products can result in environmental harm
Hazardous materials in the device, such as lithium batteries, can harm an individual if not treated properly
Product is only fully usable for people that have cellphones or an internet connection