How long does the Ember Tumbler 2 keep coffee hot?

Ember rates the battery for roughly 2 to 3 hours at a set temperature, depending on the temperature chosen. The mug holds heat longer than that even after the battery runs out.

Is the Ember Tumbler 2 dishwasher safe?

No. Ember says the Tumbler 2 and its lid should be hand washed. The battery and electronics are built into the base.

How is it different from the original Ember Tumbler?

The Tumbler 2 has a longer-lasting battery and a refined design. Capacity stays at 16 oz, and it still uses the Ember app for temperature control.

Does it work without the app?

Yes, but with limits. You can use the mug's own controls, but setting an exact temperature and checking battery level require the Ember app over Bluetooth.

What comes in the box?

The Tumbler 2, its lid and a charging coaster. You need your own USB power adapter for the coaster.

Is the Ember Tumbler 2 worth it?

It is worth it if you want coffee held at an exact temperature through a long commute and you value the handle. A plain insulated mug keeps drinks warm for less and needs no charging.