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The Samsung Galaxy S21 is a series of ... The phones also can charge other Qi-compatible devices from the S21's battery power, which is branded as "Wireless ...
Wireless charging Yes (native; fast charge supported [c 35]) Battery 3,000 mAh non-replaceable 3,500 mAh non-replaceable Charging speed 15 Watts via Qualcomm Quick Charge 2.0 Common sensors Accelerometer, Gyroscope, Digital compass, Barometer, Front-facing proximity sensor, Brightness sensor, Heart rate sensor, SpO2: Additional sensors
Qi (/ tʃ iː / CHEE) is an open standard for inductive charging developed by the Wireless Power Consortium.It allows compatible devices, such as smartphones, to receive power when placed on a Qi charger, which can be effective over distances up to 4 cm (1.6 in). [1]
Samsung announced the Samsung Galaxy S21 series, consisting of the Samsung Galaxy S21, Samsung Galaxy S21+ and Samsung Galaxy S21 Ultra, on 14 January 2021. They are the first S Series Lineup to feature 5G models only during launch. On 4 January 2022, the Samsung Galaxy S21 FE was released, a mid-range variant of the S21 containing similar ...
The technology of wireless power transmission can eliminate the use of the wires and batteries, thereby increasing the mobility, convenience, and safety of an electronic device for all users. [2] Wireless power transfer is useful to power electrical devices where interconnecting wires are inconvenient, hazardous, or are not possible.
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