One Useful Thing: camelcamelcamel 🐪🐫🐪

Free Amazon price drop alerts.

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Awkwardly named but super useful, sends you email alerts when Amazon drops the price of any item you’re watching. It’s free and no registration is required.

I’ve set up a price watch for the ecobee3 smart thermostat. You can see in the price history below that it was twenty dollars cheaper ($119) last spring than the current listed price of $139.

Since I’m in no hurry, I’ve set the alert to arrive when and if the price ever matches its springtime low. There are also presets to select email alerts for price drops of -3% , -5%, -7% and -10%. on a particular product.

Registering is free and lets you import your entire Amazon Wishlist, which is incredibly handy if you save a lot of items to your Wishlist like I do.

Camelcamelcamel has also tons of other free Amazon price watching features that are fun to browse, like Top Price Drops and Popular Deals, and tools like browser add-ons for Google Chrome and Mozilla Firefox.

Previously from One Useful Thing: Animated Knots

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Keith Monaghan writes the One Useful Thing newsletter and is a researcher who works with creative teams on projects for companies like Nike, The CW Network and Upworthy. He can be reached at or follow him on Twitter @keithmonaghan