“Effects of Dozens of Cups of Coffee, Specially Effective for Concentration”… Controversy Over 140,000-Won Wristband

"Awakening Effect Without Drinking Coffee... No Side Effects"
Expert Warns: "Not Scientifically Proven... Use With Caution"

A wristband developed by a Chinese medical technology company, said to produce effects similar to drinking dozens of cups of coffee, is drawing attention.

On November 14, Chinese media outlets such as China Radio International and Fengmian News reported that there is growing interest in an “electronic coffee wristband” that uses microcurrent technology to relieve fatigue, promote recovery, and enhance concentration.

Marketing scene of the wristband. Wepan Limited Company.

This wristband is said to regulate the nervous system in a manner similar to caffeine, even without caffeine intake. By balancing the sympathetic and parasympathetic nervous systems in the human body, it helps reduce fatigue while driving, aids in rapid recovery after intense work or exercise, and improves concentration. The product has been marketed with claims such as “delivering the awakening effect of dozens of cups of coffee without actually drinking coffee” and “no side effects like increased heart rate,” which has sparked controversy.

The manufacturer, Jiaxing Wepan Technology Limited Company, was established in 2022 and focuses on the research, development, and production of electronic medical devices. The wristband was exhibited at the China International Import Expo (CIIE) in Shanghai in both 2023 and this year, attracting significant attention. The price is 679 yuan (approximately 140,000 won).

Marketing scene of the wristband. Wepan Limited Company.

One consumer posted on Chinese social networking services (SNS), “This wristband seems unrelated to coffee. How can they market it as having similar effects? Isn’t this misleading consumers?” In contrast, a man identified as Mr. Xu wrote on SNS, “Since it regulates the balance of the nervous system through microcurrents, it will certainly help those who want to reduce their caffeine intake.”

Fengmian News quoted a customer service representative as saying, “The electronic coffee bracelet is based on anti-motion sickness coffee, but it helps enhance concentration during work, study, or driving. While the effects may vary depending on individual condition, overall feedback has been positive.”

However, Dr. Weitao, a specialist at the Neuromodulation Center of the Third People’s Hospital, cautioned users. He stated, “There is no scientific evidence that a wristband alone can produce the effects of dozens of cups of caffeine,” calling it a marketing strategy. He pointed out that blurring the essential difference between physical nerve stimulation and the chemical arousal of caffeine could confuse consumers.

He added, “While neuromodulation therapy using microcurrent stimulation does exist, the neuromodulatory effects of such products can vary greatly depending on an individual’s health or condition.” He advised caution when using the device, as its effectiveness may differ from person to person. He especially warned that pregnant women, epilepsy patients, and those with severe arrhythmia or heart disease may be at risk if they use the product.