Ember Tumbler

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Designed to be used wherever life takes you, the Ember Tumbler does more than simply keep your coffee hot. Our largest mug yet, the 16 oz Tumbler allows you to set an exact drinking temperature and keeps it there for up to 3 hours, so your coffee is never too hot, or too cold. It features our most advanced chip ever for improved Bluetooth® reliability and a simplified pairing process. All Tumblers come with two lids, letting you choose between the leakproof Handle Lid or spillproof Sliding Lid. 

Made with a durable stainless steel construction, Ember Tumbler is easy to clean and is safe to submerge up to 1 meter in water. Both lids are dishwasher safe.

    Smart LED

    Indicates when beverage has reached its perfect temperature and more.

    Built-In Battery

    3 hours* or all day when placed on charging coaster.

    Auto Sleep

    Intelligently senses when to turn on and off.

    Temperature Range

    120°F - 145°F (50°C - 62.5 °C). Select your temperature with the Ember app.

    Product Details


    Tumbler specifications
    Charging Coaster is 3.86 inches (98 mm) wide

    Ember Tumbler, 16 oz (473mL) has a weight of 17.2 oz (487g) and measures 3.3 inches (85.3 mm) in width and 6.5 inches (165 mm) in height, excluding any lids.

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    Frequently Asked Questions


    The difference between the Ember Tumbler and a typical vacuum-insulated tumbler is that the Ember Tumbler can keep your favorite hot beverage at your exact drinking temperature down to the degree. With Ember's patented technology, multiple precision sensors are able to ensure accurate temperature and liquid levels. Without the need for double walled insulation, you can feel the warmth of your drink through the Tumbler for that extra cozy sensation.

    Simply pour in your favorite hot beverage and let the Ember Tumbler do the rest! The LED light will indicate when your Ember is trying to reach the perfect temperature and when it’s ready for you to enjoy. You can also connect the Ember to your smartphone via Bluetooth, by downloading the Ember app. The Ember app will allow you to adjust your preferred temperature, add preset temperatures, and notify you when your beverage has hit your perfect drinking temperature.

    Do not microwave the Ember Tumbler! The Ember Tumbler is an electronic device, which should never go in a microwave. As with all electronics and metals, it may result in a fire when heated up in the microwave. Doing so will result in permanent damage to your Ember Tumbler.

    No! Every Ember Tumbler is preset to 135°F for you to enjoy right out of the box.

    Using the mug independently will limit you from customizing specific feature from the Ember mobile app such as adding a custom LED color or setting a specific preferred temperature between 120°F - 145°F.

    The Ember Tumbler was designed to last for up to 3 hours when poured in hot at a set temperature of 135°F.

    The battery life of your hot mug depends on a number of factors including but not limited to: external temperature, liquid temperature at pour, speed of liquid consumption, and your set temperature.

    Due to iOS and Android bluetooth updates, not all phones may be compatible with the Ember App. We're continually adding more devices and improving our compatibility. See our full list of compatible devices.

    *Newer devices not listed may still be compatible, but have not yet been tested by our team.