Self-Warming Coffee Mug Just $28.84 on Walmart.com (Over $60 Less Than Ember!)

By Erika | Junior Content Manager

Nov 04, 2026 @ 9:28 AM MST

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Head over to Walmart.com where you can grab the Mainstays Self-Warming 12oz Coffee Mug with Mug Warmer Coaster and Lid for only $28.84!

This is a killer deal compared to spending nearly $90 on the Ember Mug with the same functionality!

Mainstays Self-Warming 12oz Coffee Mug – $28.84

Person holding up black coffee mug above warmer pad

This warming mug keeps your favorite drinks at just the right temperature! It features three heat settings, LED indicator lights, and up to two hours of cordless warming. Plus, the included charging coaster lets you enjoy your favorite hot beverages even longer!

I have this mug as well as an Ember mug. I don’t notice much of a difference in the functionality. It’s definitely worth the savings to get the one from Walmart. – Hip Reader, Kelly

Going out for coffee? Save with these easy hacks!

About the writer:

Erika has a Bachelor’s Degree in Anthropology from Sonoma State University and 10 years of writing experience from various deal sites including Hip2Save.