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2. Samsung Galaxy S9 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S9

   The Samsung Galaxy S9 and S9+ are Android -based smartphones unveiled, manufactured, released and marketed by Samsung Electronics as part of the Samsung Galaxy S series. The devices were revealed at the Mobile World Congress in Barcelona on 25 February 2018, as the successors to the Samsung Galaxy S8 and S8+. [6]

3. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...

4. Mobile phone accessories - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_accessories

   Chargers and external batteries. Micro-B USB plug. Mobile phone chargers have gone through a diverse evolution that has included cradles, plug-in cords and obscure connectors. However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C. Apple devices often use proprietary connectors.

5. Samsung Galaxy Note series - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_Note_series

   Samsung announced the original Galaxy Note at IFA Berlin in 2011. While some media outlets questioned the viability of the device due to its 5.3-inch screen (which, at the time, was considered extremely large for a phone), the Note received positive reception for its stylus functionality, the speed of its 1.4 GHz dual-core processor, and the advantages of such a large screen size.

6. Samsung Galaxy S series - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S_series

   The Galaxy S22 Ultra had a huge design change which gave it a more similar look to the Galaxy Note20 Ultra rather than the Galaxy S21 Ultra. The S22 Ultra saw the introduction of the built in S Pen which was not present on the Galaxy S21 Ultra. The S22 Ultra also changed the adaptiveness of the refresh rate from 10–120 Hz to 1–120 Hz.

7. Wireless power transfer - Wikipedia

   en.wikipedia.org/wiki/Wireless_power_transfer

   When the phone is set on the pad, a coil in the pad creates a magnetic field [1] which induces a current in another coil, in the phone, charging its battery. Wireless power transfer ( WPT ), wireless power transmission, wireless energy transmission ( WET ), or electromagnetic power transfer is the transmission of electrical energy without wires ...