How do I control the drinking temperature?

You can set and customize your preferred drinking temperature between 120°F and 145°F using the Ember app. The tumbler uses a smart LED to indicate when the beverage reaches the selected temperature.

What are the battery life and charging options?

The tumbler has a built-in battery that keeps your drink warm for up to 3 hours on a single charge. It can last all day when placed on the included charging coaster, which is compact and compatible with previous Ember chargers.

What lids come with the product and what are their features?

Two lids are included: a leakproof handle lid designed for easy carrying, and a spillproof sliding lid designed for convenient sipping. Both lids are dishwasher safe for easy cleaning.

Is the tumbler safe to clean in water or dishwasher?

The stainless steel tumbler can be safely submerged in water up to 1 meter deep. However, the tumbler itself is not dishwasher safe; only the two lids can be cleaned in a dishwasher.

Does the tumbler have any smart features to conserve battery?

Yes, the tumbler has an auto sleep function that intelligently senses when to turn on or off, helping to conserve battery life when not in use.

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Ember 16 Oz. Smart Tumbler In Slate Black - CM21XL17AM

Name: Ember 16 Oz. Smart Tumbler In Slate Black - CM21XL17AM
Brand: Ember
SKU: CM21XL17AM
Price: 109.95 USD
Availability: InStock

Model # CM21XL17AM

Abt # CM21XL17AM

UPC # 810011402508

Key Features

16 Oz Capacity
Stainless Steel Material
Built-In Battery
Auto Sleep
Smart LED
Bluetooth Compatible
Slate Black Finish

Quick Specs

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$109.95

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which ends 08/31/2026

Comp. Value: $179.95

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$109.95

Comp. Value: $179.95

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Product Details

Ember CM21XL17AM 16 Oz. Smart Tumbler In Slate Black

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.

Features

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.
Two Is Better Than One
With two included lids, you can choose the lid that works for you. A leak proof handle lid for easy carrying, or the sipping lid for easy drinking. The choice is yours.
More Compact For More Counterspace
The redesigned Charging Coaster for the Ember Tumbler is smaller and thinner than previous Charging Coasters for a reduced footprint.
Already have a Charging Coaster? The Tumbler can work with all previous generation Charging Coasters and all Ember Mugs work with the Tumbler's new Charging Coaster.
Precision In the Palm Of Your Hands
Ember is a connected device. Use the Ember app to set your temperature, customize presets for your favorite drinks, receive notifications when your desired temperature is reached, personalize your mug and more.