Choonsung Shin, a Korean technology researcher who has examined problematic smartphone usage in both Korea and the U.S., says cultural differences could affect
smartphone addiction rates, but he notes that factors such as a person's age, gender and occupation are also likely to play a role.
Korean researchers have developed several self -
rating questionnaires for assessing
smartphone addiction, but no single one of them is regarded as official.
The leaked image also shows the Galaxy Alpha's other features: a 1860 mAh one battery, Bluetooth 4.0 connectivity, USB 3.0, 4G LTE radio connectivity, Wi - Fi, GPS, a 2.1 megapixel front camera (for your selfie
addiction), 12 megapixel rear camera, a super-fast autofocus, a heart
rate sensor, and a fingerprint monitor now standard in high - end Samsung
smartphones.