Is the Ember Mug 3 worth it over a regular insulated mug?

If you sip slowly at a desk and want coffee held at an exact temperature, yes. A plain insulated mug keeps coffee warm for a while but cannot hold a set temperature, and it costs far less.

How long does the battery last?

About 80 minutes on the 14 oz mug without the lid, and over three hours with the included sliding lid. Expect shorter runs at 145°F.

Do I need the Ember app?

No. You can set the temperature on the mug itself. The app is optional and adds finer control and presets.

Is it dishwasher safe?

Yes, on the top rack. The charging coaster and cable should stay out of the dishwasher.

Is it worth upgrading from the Ember Mug 2?

Most owners say no. The changes are modest, and the Mug 2 still holds temperature well.

What comes in the box?

The 14 oz mug, a sliding lid, a charging coaster, a charging cable and a quick start guide, backed by a one-year limited warranty.

Where is the Ember Mug 3 (14 oz) cheapest?

At Amazon, for $99.99, as of our latest check.

What do buyers say about the Ember Mug 3 (14 oz)?

Rated 4.6 out of 5 from 157 ratings. Buyers like: Keeps coffee hot so you can enjoy it longer; 14 oz size is a sweet spot for regular mugs without constant refills; Looks modern and understated on a desk. Common complaints: Battery drains quickly and is not sufficient at top heat levels; Mug is heavy, especially before coffee is added.

Where can I buy the Ember Mug 3 (14 oz)?

5 stores we checked sell it, including eBay, Amazon, Ember®, Best Buy, Target.

Ember Mug 3 (14 oz) Price History: Lowest $99.99 at Amazon

What reviewers say

4.6 / 5157 ratings

Rated 4.6 out of 5 from 157 ratings, the Mug 3 is liked for keeping coffee hot through long meetings and for its clean look on a desk. Complaints center on battery life at high heat, the mug's weight and awkward controls, and a lid that drips.

What people mention

Battery lifeCriticisedOwners say the battery drains quickly and is not enough at the highest heat settings, though the lid extends it past three hours.
WeightCriticisedThe mug feels heavy in the hand, especially before it is filled.
ControlsMixedSetting temperature on the mug is convenient, but the bottom power button is stiff and the on-mug controls are finicky.
LidCriticisedThe sliding lid helps battery life, but its gasket is not airtight and drips when drinking.
CleaningPraisedTop-rack dishwasher safe and easy to clean.
Charging coasterCriticisedThe coaster is finicky to connect and light enough that the cable can pull it off the table.

From Ember®

Keeps your drink precisely at your preferred temperature
Set temperature directly on the mug or fine-tune in the optional Ember app
Top-rack dishwasher safe
Included sliding lid keeps drinks warm for over 3 hours on a charge
LEDs show temperature setting and battery level while charging
Charging coaster for all-day warmth while docked

Sizes: 14 oz
Materials: Stainless steel, ceramic-coated interior
Sizing: 14 oz is described as the everyday coffee size; one reviewer notes it holds exactly 14 oz with no leeway for add-ons like milk
Care: Top-rack dishwasher safe; let it dry completely before charging; keep the charging coaster and cable out of the dishwasher
Guarantee: 1-year limited warranty on the mug for manufacturing defects; lifetime warranty on the charging coaster
Returns: Unused mugs can be returned within 30 days of delivery; a restocking fee applies
Shipping: Free shipping; orders generally leave the warehouse within 2 business days
In the box: Mug, Sliding Lid, Charging Coaster, Charging Cable

About the Ember Mug 3 (14 oz)

Meet Ember Mug 3: set your temperature on the mug or in the optional app, enjoy over 3 hours with the included sliding lid, and clean it in the dishwasher.

What buyers say

Buyers like

Keeps coffee hot so you can enjoy it longer
14 oz size is a sweet spot for regular mugs without constant refills
Looks modern and understated on a desk
Dishwasher safe and easy to clean
Great gift, especially for people in long remote meetings
Improved app and charger with unlimited warranty

Buyers complain about

Battery drains quickly and is not sufficient at top heat levels
Mug is heavy, especially before coffee is added
Power button on the bottom is stiff and awkward to use with a full mug
Lid gasket is not airtight and drips when drinking
Charging coaster is finicky to connect and too lightweight, so the cable can pull it off the table
Upgrade from Mug 2 not seen as worth it; on-mug controls finicky