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The Champion

Ember Mug 2

Ember Mug White Render

The Challenger


Ionmug Stainless Black Render

Ember offers a range of high-tech smart mugs, the Mug 2 is its solution to keep your coffee at the perfect temperature while you're sitting at your desk.

Shop Ember


  • Free companion app
  • Up to 1.5 hours battery life
  • LED indicator
  • 20°F to 145°F temp range
  • Available in a range of colors
  • Scratch-resistant coating
  • Push notifications
  • Charging coaster


  • Hand wash only
  • Can only adjust temp via app
  • No lid

The sleek ionMug is a rechargeable, self-heating mug with durable stainless steel construction and a handy spill-proof lid to help keep the heat.

Shop ionMug


  • Anti-spill lid
  • Stays hot for 3 hours
  • Indicator light
  • Three preset temps
  • Available in three colors
  • Stainless steel construction


  • Hand wash only
  • Can't customize temp
  • No companion app

Vital Statistics:

Category Ember Mug 2 ionMug
Companion App
Auto Shut-Off
Anti-Spill Lid
Indicator Light
Temperature Range 20º-145°F 3 Presets
Push Notifications
Heat Timer 1.5 hours 3 hours
Finish Scratch-Resistant Stainless Steel
Charging Coaster

I'm a serial coffee reheater. I trek to the microwave to zap my coffee back to life enough to know it starts to taste weird after around the third time.

Ember Two Color Lifestyle
Source: Ember

If you're a fellow serial reheater, then I have a savvy solution that will save your microwave a ton of work and keep your Joe tasting right. Self-heating smart mugs will keep your hot drink at a tasty temperature for longer, giving you more time to finish the cup.

There's one I think is worthy of deskspace…

Why the Ember Mug 2 Has a Dedicated Spot On My Desk

Ember's temperature control tech has seen it become one of the leaders at the high end of the smart mug marketplace. The secret behind good coffee is science — the variety of beans, the type of grind, the temperature of the water you add to the coffee — and the temperature at which you drink it. Using the companion app, the Ember Mug 2 lets me choose my preferred temperature, anything between 120°F and 145°F.

Ember Lifestyle
Source: Ember

So Why is Ember Mug 2 a Winner in My Books?

The Ember Mug 2 just edges past the ionMug, thanks to a few things:

  • Smart Functionality
  • Excellent Connectivity
  • More Affordable

While I wish the Ember option came with a lid, you can't beat the ability to "control" your coffee cup via the companion app. As well as setting a precise temperature (compared to only three presets on the ionMug) the Ember app allows me to create customized presets for my favorite drinks, and receive notifications when my beverage's desired temperature is reached.

The Ember app can send you alerts when your coffee is ready.

The Ember Mug 2 has decent battery life (90 minutes for the 10 oz mug and 80 minutes for 14 oz mug), but where it really shines is that you can place it on the bundled charging coaster and enjoy continual, all-day warmth. No more shameful trips to the microwave.

Ember Lifestyle
Source: Ember

This mug features an LED indicator light that gives you a visual cue that your drink has reached the temperature you want. When your coffee has nearly been drunk, you can rest assured the Ember Mug 2 will automatically kill the heat when the mug is empty, or after two hours of inactivity. Thanks to its scratch-resistant coating and its IPX7 rating this can be safely hand washed.

Staff Pick

Ember Mug White Render

Ember Mug 2

4.5 / 5

Attractive | App Control | Programmable | Scratch-Resistant

This smart mug is a savvy solution for anyone who wants to keep their coffee hot at their desk.

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