* ''You’ll need to spend $30 on extra electrode strips'' "<ref>Hands-on with Quell Wearable Pain Relief Device: http://www.medgadget.com/2015/08/hands-on-with-quell-wearable-pain-relief-device.html, (Retrieved Dec 15, 2015)</ref>
MedGadget's conclusion is that "''We unfortunately failed to find significant pain relief after using this $250 device for a few weeks, but much more testing is needed before we can come to a definite conclusion.''"<ref>Hands-on with Quell Wearable Pain Relief Device: http://www.medgadget.com/2015/08/hands-on-with-quell-wearable-pain-relief-device.html, (Retrieved Dec 15, 2015)</ref>. However, MedGadget does not provide any specific data to support their claims about the disadvantages.