The number of heated tobacco brands and models compatible with leading brands of consumables in South Korea grew strongly in 2020 but plateaued in 2021. Average compatible hardware product pricing has declined in 2021; KT&G’s Lil product has also declined and is competitive with compatible product prices; Iqos has maintained its premium price. Average compatible hardware battery capacity has been increasing during 2021, while most products seem to provide maximum temperatures between 300-350 degrees C. In consumer reviews, price, design and smoke production are most often mentioned, but price, design and ease of cleaning are less important than other features in driving overall product satisfaction.