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watchOS is the operating system of the Apple Watch, developed by Apple.It is based on iOS, the operating system used by the iPhone, and has many similar features. [4] It was released on April 24, 2015, along with the Apple Watch, the only device that runs watchOS. watchOS exposes an API called WatchKit for developer use.
The Apple Watch Series 6 is the final Apple Watch model available with Space Gray and Gold (introduced with the iPhone 8 in 2017) aluminum case color options. It is the first time adding the Product Red and Blue aluminum case color options.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Apple_Watch_Series_3&oldid=1229402331"
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]
Apple TV Software 3: October 2009 Derived from Mac OS X 10.4 Tiger; Apple TV Software Apple TV Software 4: September 1, 2010 Derived from iOS 4 and iOS 5; Apple TV Software 5: March 7, 2012 Derived from iOS 5 and iOS 6; Apple TV Software 6: September 20, 2013 Derived from iOS 7; Apple TV Software 7 [note 1] September 17, 2014 Derived from iOS 8 ...
Apple released two chargers using the MagSafe standard in 2020: the MagSafe Charger, which is a single charging pad for iPhone, and the MagSafe Duo Charger, which is a charging mat with both MagSafe and an Apple Watch charger. [2] Apple has also licensed the MagSafe standard to third parties to develop chargers and cases.
While the state of charge is usually expressed using percentage points (0 % = empty; 100 % = full), depth of discharge is either expressed using units of Ah (e.g. for a 50 Ah battery, 0 Ah is full and 50 Ah is empty) or percentage points (100 % is empty and 0 % is full). The capacity of a battery may also be higher than its nominal rating.
Example charging graph. On the left: per-cell quantities. On the right: example values for a 40 Ah, 6-cell (12 V) battery. Note: schematic illustration; not based on actual measurements. IUoU is a DIN-designation [1] (DIN 41773) for a lead-acid battery charging procedure that is also known as 3-stage charging, 3-phase charging, or 3-step charging.