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Why don't they build Xenon flashes in smartphones?

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One way to answer your question is to say that it makes an incorrect assumption. Some smartphones do have Xenon flashes. For instance, I used to have a Sony Ericsson C905, which had a Xenon flash. And my current phone is a Samsung Galaxy S4 Zoom, which also has a Xenon flash. read more

Well, let's begin by agreeing that Xenon flashes have some distinct advantages over LED flashes that make Xenon the only sensible choice for serious photography. read more

1.LED flash also helps during video recording, something Xenon can't. 2. Also Xenon flash is too bright for things like taking photos of nearby people and objects. It may over expose them. 3.Xenon flash is quite powerful and makes dust visible.DSLRs have dust reduction tech, phones don't. 4.Xenon flash is very power hungry and drains battery faster. read more

Xenon flashes are much brightter than LEDs, but a major reason for xenon’s lack of popularity in smartphones is that the hardware is simply bigger - too big, usually, to fit into an ultra-slim phone. The other is that unlike LEDs, xenon flashes can't double as video lights. Companies are working to find a cure for the LED blues. read more

Xenon flashes are present in some modern smartphones—most notably the Nokia 808 Pureview—but have been ignored by most manufacturers. Xenon flashes are much brightter than LEDs, but a major reason for xenon’s lack of popularity in smartphones is that the hardware is simply bigger - too big, usually, to fit into an ultra-slim phone. read more

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