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Without going into pricing details, what's the longevity of an e-ink device at 60fps?

As far as I understand it, e-ink has essentially a "finite" albeit a very large number of refreshes available, when moving the "nodules" to display different images.

Has the issue been solved? E.g. will users be able to get at least 5-7 years of heavy usage out of this device? Or will this become e-waste after 2-3 years?

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It’s not eink, it’s a reflective lcd whose design tradeoffs were tweaked for what this manufacturer wanted.

While technically it is an lcd, reflective lcds are extremely readable in sunlight and use very little power to maintain the image on screen. An epaper/eink display uses zero power to maintain the display and uses electrostatic manipulation to refresh the screen.

As it's not eink but LCD there shouldn't be refresh limits.

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