The price of the wifi-only edition of Kindle Paperwhite was shaved by 500 yen ($6.25) to 7,980 yen Wednesday, as competition heats up in a sector that has been slow off the mark.
Amazon began taking pre-orders for the gadget on October 24, with the first shipping expected on November 19.
The discount might give an edge to the US giant against a range of rivals, including the "Lideo" e-reader, with the price tag of 8,480 yen, the same as the Paperwhite before its discount.
Lideo, which is made by printing heavyweight Toppan, uses free WiMax high-speed, wireless broadband technology that allows users to connect to its BookLive ebook store with 95,000 titles, compared with Amazon's 50,000 Japanese titles.
Sony and Japanese online store Rakuten also have e-readers, while a horde of electronics makers have produced tablet computers ahead of the year-end shopping season.
Catch the latest from the Consumer Electronics Show on Gadgets 360, at our CES 2026 hub.
Is Space Sticky? New Study Challenges Standard Dark Energy Theory
Sirai OTT Release: When, Where to Watch the Tamil Courtroom Drama Online
Wheel of Fortune India OTT Release: When, Where to Watch Akshay Kumar-Hosted Global Game Show