S9
Samsung Galaxy S9 (SM-G960) - 5.8in AMOLED Flagship | Samsung
The Samsung Galaxy S9 (SM-G960) is a 2018 flagship Android smartphone with a 5.8-inch Super AMOLED 1440 x 2960 quad-HD display, Exynos 9810 (or Qualcomm Snapdragon 845) octa-core chipset, and a 3000 mAh Li-Polymer battery in a 147.7 x 68.7 x 8.5 mm, 163 g glass-and-aluminum chassis.
A smartphone is a mobile communication device that integrates a cellular modem, application processor, sensors, and a touch display into a single battery-powered handheld computer. It sits at the top of the consumer electronics hierarchy: smartphone -> mobile device -> consumer electronics -> electronics. The Galaxy S9 belongs to Samsung's premium Galaxy S line, positioned between the mid-range Galaxy A series and the productivity-focused Galaxy Note series.
Key features include the world's first Dual Aperture rear camera, which mechanically switches between f/1.5 for low light and f/2.4 for bright scenes, 4 GB of LPDDR4X RAM, 64/128/256 GB of internal storage with microSD expansion, and an IP68 dust/water-resistance rating. A rear fingerprint sensor, iris scanner, and face unlock provide layered biometric security.
Technically, the Exynos 9810 variant pairs four custom 2.7 GHz Mongoose M3 cores with four Cortex-A55 efficiency cores, while the SD845 variant uses Kryo 385 cores (4x 2.8 GHz Cortex-A75 + 4x 1.8 GHz Cortex-A55) and an Adreno 630 GPU running at 710 MHz. Both variants ship with Android 8.0 Oreo and Samsung's adaptive Super AMOLED panel capable of a 24-bit color depth.
Typical use cases include mobile photography in variable lighting, HD media consumption on the 18.5:9 display, and everyday communication, where the Dual Aperture camera and stereo-tuned AKG speakers distinguish it from peers.
Design consideration: the 3000 mAh battery and glass construction mean thermal headroom is limited during sustained gaming; a case is recommended given the repair cost of the curved glass panels.
This page synthesizes distributor-style specification data, device-level alternatives, and practical usage notes not consolidated in any single manufacturer page.
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