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2. Qi (standard) - Wikipedia

   en.wikipedia.org/wiki/Qi_(standard)

   The standard allows compatible devices, such as smartphones, to charge their batteries when placed on a Qi charging pad, which can be effective over distances up to 4 cm (1.6 in). [2] The Qi standard is developed by the Wireless Power Consortium. [1] As a universal, open standard Qi-enabled devices are able to connect to Qi chargers from any ...

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. Samsung Galaxy S21 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S21

   The Samsung Galaxy S21 is a series of high-end Android-based smartphones designed, developed, marketed, and manufactured by Samsung Electronics as part of its Galaxy S series. They collectively serve as the successor to the Samsung Galaxy S20 series. The first three smartphones were unveiled at Samsung's Galaxy Unpacked event on 14 January 2021 ...

5. Samsung Galaxy S23 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S23

   The Samsung Galaxy S23 phones were released with Android 13 with Samsung's One UI 5.1 software. Samsung Knox is included for enhanced device security, and a separate version exists for enterprise use. Samsung has promised 4 years of major Android OS updates and 1 additional year of security updates for a total of 5 years worth of updates. [20]

6. Samsung Galaxy S7 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S7

   Samsung claims the Galaxy S7 to be able to fully charge using wired and wireless fast charging within 90 and 140 minutes respectively, while 100 and 160 minutes respectively on the S7 edge. [ 26 ] Fast charging is disabled while the device is in operation.

7. Samsung Galaxy S8 - Wikipedia

   en.wikipedia.org/wiki/Samsung_Galaxy_S8

   The S8 supports AirFuel Inductive (formerly PMA) [65] and Qi wireless charging standards. [23] Due to the recalls of the Samsung Galaxy Note 7, Samsung said in a press conference it is committed to stricter quality control and safety testing procedures on all of the company's future products. [66]