The global market for glucose sensors when i-SENS entered the market was 6–7 billion USD. Given the size of our operations, achieving just 0.1 percent of the market would suffice for the company to sustain itself. Moreover, 95% of the Korean market was controlled by four major companies. There were no local competitors. I determined that i-SENS could produce a product that was more advanced than what was available from the competition. The other products required larger amounts of blood and had slower measuring times, for example requiring 5 μL of blood and taking 15–30 seconds to measure. We believed that we could create a product that required less than 1 μL, and less than ten seconds. Hence, i-SENS developed the most advanced 0.5 μL and five-second glucose sensor on the Korean market at the time based solely on our own patents.