As Engadget reports, the technology could be used in the future at hospitals - where nurses could tell if a patient needs more pain medication after surgery.
Click through below to see some great wearable technology ideas!
New software will be able to look at you and determine your level of pain
Hisao Tanaka, president and chief executive officer of Toshiba Corp., wears the company's wearable display device as he speaks during a news conference in Tokyo, Japan, on Thursday, May 22, 2014. Toshiba targets 450 billion yen ($4.4 billion) of operation profit for the fiscal 2016. Photographer: Tomohiro Ohsumi/Bloomberg via Getty Images
People recording with GoPro on stick in the Color Run by Desigual. Green color powder. Barcelona Catalonia May 18th 2014. Wearable technology.
Woman wearing Fitbit and holding weights
Sunglasses made to fit Google Glass are displayed on a computer screen in Tiskilwa, Illinois, U.S., on Tuesday, April 15, 2014. Beginning at 9 a.m. ET today, Google began a one-day sale for its wearable computing device, Glass, for $1,500 plus tax. The sale is an expansion of the Google Glass Explorer program, started in 2012. Photographer: Daniel Acker/Bloomberg via Getty Images
An Indian model showcases the new Samsung 'Galaxy S5' smartphone during a fashion show held as part of a consumer event in Bangalore on April 10, 2014. The phone along with its wearable 'Gear 2' will be available on sale across India from April 11, works on a firstime, True OctaCore Proccesor. AFP PHOTO/Manjunath KIRAN (Photo credit should read Manjunath Kiran/AFP/Getty Images)