Ember's Mug 3 keeps tea hot without opening your phone

Ember's third-generation smart mug adds physical controls and practical upgrades to its temperature-keeping design.

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Oct 17, 2026

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Ember's Mug 3 keeps tea hot without opening your phone

Ember's third-generation smart mug adds physical controls and practical upgrades to its temperature-keeping design.

In brief

Ember's third-generation smart mug adds physical controls and practical upgrades to its temperature-keeping design. Ember released its Mug 3 smart mug with on-device temperature controls and a three-hour charge, priced from one hundred twenty-nine dollars. Originally reported by TechCrunch.

Ember solves the cold tea problem

Ember solves the cold tea problem

Ember introduced its smart mug in two thousand sixteen to keep drinks warm. The company is now releasing its third-generation mug with practical upgrades.

Physical button replaces app control

The Mug 3 adds a button on the bottom to cycle through five preset temperatures from one hundred twenty-five to one hundred forty-five degrees Fahrenheit without opening the app.

Button placement creates usability issue

The bottom-mounted button is difficult to press when the mug holds hot liquid. Users must tilt the mug and press firmly to get it to respond.

App still offers temperature customization

The Ember app lets users pair the mug over Bluetooth and choose presets. Ember recommends one hundred thirty-six degrees for black coffee, one hundred thirty-two for green tea, one hundred forty-two for lemon water.

Mug 3 adds spill prevention and dishwasher safety

Mug 3 adds spill prevention and dishwasher safety

The Mug 3 includes a sliding lid to prevent spills and keeps drinks at desired temperature for up to three hours on a single charge. It is the first Ember mug that is top-rack dishwasher-safe.

Mug 3 pricing and color options

The ten-ounce Mug 3 costs one hundred twenty-nine dollars in black, white, and stainless steel. The fourteen-ounce version costs one hundred forty-nine dollars in eight colors including sage green, lavender, and matcha green.

Ember also launches Tumbler 2

Ember also launches Tumbler 2

Ember introduced the Tumbler 2, a sixteen-ounce tumbler with a slimmer design to fit standard car cup holders.It costs one hundred seventy-nine dollars in black and replaces both the Travel Mug 2 and original Tumbler.

Products available at major retailers

The Mug 3 and Tumbler 2 are available for purchase on Ember's website, Target, and Amazon. The Travel Mug 2 remains available until supplies run out.

At a glance

Ember released its Mug 3 smart mug with on-device temperature controls and a three-hour charge, priced from one hundred twenty-nine dollars.

Read the original on TechCrunch

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