The 59 best Amazon Prime Day deals under $50 from Anker, Ring, Lego, Roku and others

This is technically the third Prime-related sale of the year, after March’s spring sale and the official Prime Day in July. Amazon calls this one Prime Big Deal Days, but to you, me and most everyone else, it’s the October Prime Day sale. But it ends tonight. This guide covers tech and gadgets that go for under $50 after the discount, but only ones we recommend. These are the batteries, mice, earbuds, speakers, wall chargers and other accessories that the Engadget team has tested for our guides and…