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Best Buy has joined the battle against Amazon's Prime Big Deals Day, the fall version of Prime Day. There will actually be two sales leading up to Best Buy's main Techtober sale, so I've rounded up all the info below to help you keep things straight.

All of Best Buy's October sales

Best Buy's fall sale is actually three separate sales from Sept. 27 through Oct. 12. Here are the dates of each sale and what you can expect from each: • Sept. 27 to Sept. 28: A 48-hour flash sale.

Sept. 27 to Sept. 28

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