Ember Programmable Temperature Controlled Smart Mug, 10-Ounce

Last updated: July 6, 2023

Ember Programmable Temperature Controlled Smart Mug, 10-Ounce

Our Review Process

Don't Waste Your Money is focused on helping you make the best purchasing decision. Our team of experts spends hundreds of hours analyzing, testing, and researching products so you don't have to. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in the category.
Show Contents

We looked at the top Temperature Controlled Mugs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Temperature Controlled Mug you should buy.

Overall Take

This compact, temperature-controlled mug can maintain a full eight ounces at 135 degrees for an hour and half after being removed from its charging coaster. If left on its base, you can expect indefinite temperature control.

In our analysis of 22 expert reviews, the Ember Programmable Temperature Controlled Smart Mug, 10-Ounce placed 3rd when we looked at the top 7 products in the category. For the full ranking, see below.

From The Manufacturer

LONGER LASTING BATTERY: Extended battery life on your temperature control mug keeps your drink perfectly hot for up to 80 minutes on a full charge or all day on the newly redesigned charging coaster. Choose the exact temperature you prefer (between 120°F – 145°F). APP CONTROLLED: Ember smart mug allows you to control with your smartphone. Pair with the Ember app to set your temperature, customize presets, receive notifications and more. USE WITHOUT APP: Ember Mug is functional without connection to the app and will remember last used temperature. Out of the box, the Ember Mug is set to 135°F. AUTO SLEEP: Ember heated mug intelligently senses when to turn on and off. The mug enters sleep mode when empty or after 2 hours of inactivity. Ember wakes up when it senses movement or liquid. HAND WASH ONLY: An updated scratch-resistant ceramic coating is safe to hand wash. Ember Mug 2 is IPX7 rated and fully submersible up to 1 meter deep. EXTENDED BATTERY LIFE: Pour in hot liquid to extend and maximize battery life. INCLUDED WITH MUG: Charging coaster, adapter, and quick start guide. NEED HELP: Go to Ember’s brand site and click SUPPORT for FAQs and to speak with Customer Support.

Expert Reviews

What experts liked

Ember is a sleek, app-controlled mug that will keep your beverage at a set temperature anywhere from 120 to 145 degrees and it’s mostly accurate based on my testing.
No need to microwave coffee anymore to keep it warm. Works for 1.5 hours on a single charge. Wireless charging. LED light indicates when cup is ready. Adjustable temperature. Other temperature control mugs only have one preset temp—this model lets you adjust the temp between 120 and 145 degrees.
Using your phone, you can set your preferred temperature, customize presets, and even receive notifications. The LED display on the base of the mug lets you know when it’s heating up, cooling down, or just right, and the included charger doubles as a coaster. We’re in love, basically.
Warms beverages to preferred temperature. Modern minimalist design. Customizable LED light. 90-minute battery life. Easy-to-use app.
Keeps precise temperatures. Easy to use. App adds customisation options.
Can go into sleep mode to save on battery life and can be woken up by filling them or with a little movement. In addition to the built-in features, the mugs have a mobile app you can use to control the temperature of your drink, monitor your caffeine intake and customize your display.
My coffee stays perfectly hot for about 2 full hours — which is honestly how long it takes me to drink it. It you’re snagging a gift for a new mom in your life this Mother’s Day, this is it. It saves her time, eases anxiety, and allows her to feel independent while otherwise feeling totally out of control.
Two sizes and colors to choose from. High quality materials. Maintains temperatures between 120°-145° Fahrenheit. Battery lasts around 80 minutes. Charging coaster keeps drink hot all day. Connects via Bluetooth, app easy to use.
- iMore
The Ember mug is available in 10 fl oz or 14 fl oz. Easily hand wash in the sink as it can be submerged up to three feet deep in water. The battery is built-in to the stainless steel cup. Mugs come with a charging coaster.

What experts didn't like

The only downside is there’s no USB charger.
Pricey. Battery is not replaceable. Mug must be hand-washed. 145 degrees is still not hot enough for some folks. We know, some like it hot. But temperature control mugs are designed to keep your beverage warm, not piping hot. 10 ounce cup is too small for some folks. Good news: there is also a 14 ounce version. Bad news: it is more expensive.
Pricey for a mug. Interior coating is extremely delicate. Hand wash only.
Expensive. Hand wash only.
Battery life may vary. Expensive. Bottom of mug cannot be wet when on charging coaster.
- iMore
Mug cannot be washed in the dishwasher; hand wash only. The battery takes longer to charge than some other cups.


Many of us love a hot cup of coffee or tea, but it often cools too quickly, or it’s too hot to drink straight away. There are a number of options available for keeping a mug of coffee or tea at the perfect drinking temperature, including passive heat-retaining mugs and active temperature-controlling mugs.

Heat-retaining mugs are different from temperature-controlling mugs, but often achieve the same goal. The primary difference in effectiveness is how frequently you plan to top off your mug over the course of the day.

If you plan to slowly work on a cup of coffee or tea steadily over the course of a day, you might prefer a temperature-controlling mug, which uses a battery to keep its liquid contents at a steady temperature. This way, you can enjoy your drink at the temperature you like it at, at least as long as the battery holds out.

If you are more likely to drink multiple cups of coffee over the course of the day, you may be just fine with a heat-retaining mug. Each time you refill the mug you will be adding hot liquid again, which will bring the overall temperature up and restore the phase-change material’s store of thermal energy.

More to explore