E-Ink Watch

Joy likes reading on the Kindle, because the “E-Ink” display is easy on the eyes. Now the same technology is going into watches.

Some E-Ink watches can cover twelve time zones and switch between them every few seconds. Others show a calendar page along with the time. has a bunch of these. They start at around $110, and we’ll guess they are destined to get down to $10 some day.

Just as E-Ink pages on the Kindle don’t use the battery until you turn a page, E-Ink watches don’t use any battery until the numbers change. Color E-Ink displays will arrive later this year.

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