This statistic shows the duration of smartphone use before bedtime in South Korea as of June 2018, by age group. During the survey period, the average smartphone use of the respondents from 20 to 29 years amounted to about ** minutes before bed.
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Opensurvey. (July 25, 2018). Duration of smartphone use before bedtime in South Korea as of June 2018, by age group (in minutes) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/
Opensurvey. "Duration of smartphone use before bedtime in South Korea as of June 2018, by age group (in minutes)." Chart. July 25, 2018. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/
Opensurvey. (2018). Duration of smartphone use before bedtime in South Korea as of June 2018, by age group (in minutes). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/
Opensurvey. "Duration of Smartphone Use before Bedtime in South Korea as of June 2018, by Age Group (in Minutes)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 25 Jul 2018, /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/
Opensurvey, Duration of smartphone use before bedtime in South Korea as of June 2018, by age group (in minutes) ÌÇÐÄÆƽâ°æ, /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/ (last visited July 24, 2026)
Duration of smartphone use before bedtime in South Korea as of June 2018, by age group (in minutes) [Graph], Opensurvey, July 25, 2018. [Online]. Available: /statistics/895198/south-korea-smartphone-use-duration-before-bedtime-by-age-group/
