Smartphones are rated by screen size measured on the diagonal in inches. The bigger the number the larger the phone, but different phones use different ratios of height to width.
ស្មាតហ្វូនត្រូវបានវាយតម្លៃដោយទំហំអេក្រង់បានវាស់លើអង្កត់ទ្រូងនៅអ៊ីញ. ចំនួននេះមានទំហំធំទូរស័ព្ទនេះមានទំហំធំ, but different phones use different ratios of height to width.