Plenty of people in Medellín start their smart home with an Echo someone brought back from a trip. It connects, answers in Spanish, and plays music. The questions start when you want it to turn on lights, run the AC, or open a blind.

This guide covers what you need to know to use Alexa in Colombia without fighting it, and where it fits in a well-built home. For the full picture, start with our home automation in Medellín guide.

Alexa works in Colombia, with a couple of details

Colombia does not have its own Amazon store, so Echo speakers arrive through overseas purchases or local resellers. The speaker works the same, but two things to check when you set it up.

Language. Alexa speaks Spanish, and you change it in the device settings in the app. Leave it in English and it misunderstands room and lamp names.

Account region. The Amazon account is tied to a country, and that controls which skills show up in the app. Some brands only publish their skill in certain countries. Before you buy a device you want to control by voice, confirm its skill is available for your account.

If you buy the Echo abroad, also check that shipping reaches Medellín and that the adapter is 110 V, which is what we have in homes here.

What you can connect

Alexa does not control anything on its own. It talks to devices in three ways:

• Through each brand's cloud. You install the maker's skill, link the account, and Alexa sees its devices. Most common with Wi-Fi bulbs and plugs.
• Through Matter. Recent Echo models act as a Matter controller, so a Matter device is added directly, with no skill in between. Cleanest option for new gear.
• Through Zigbee. Some Echo models include a Zigbee coordinator and can drive Zigbee sensors and bulbs without a separate hub.

To pick bulbs that get along with Alexa, see smart bulbs. For plugs and outlets, smart plug.

What happens when the internet drops

This is what surprises people most. Every voice command travels to Amazon's servers to be understood. Without internet, Alexa understands nothing, even if the bulb is a meter away.

In Medellín, where internet and power cuts still happen, that matters. If the house depends on voice to turn on the hallway light, an outage leaves it dark.

That is why we build homes the other way around: important automations run locally, inside the house, and voice is one more way to give commands, not the only one. The wall switch still works and sensors still turn lights on even with no internet. More in power outages and smart homes.

Alexa with Home Assistant

The combo we use most is Home Assistant as the brain and Alexa as the microphone. Home Assistant drives devices locally (Zigbee, Matter, Shelly, the AC) and only shows Alexa what you want to control by voice.

Two paths to connect them:

• Home Assistant Cloud, the project's own subscription. A few clicks, no ports to open.
• A custom skill set up by hand. No subscription cost, but more technical work and upkeep.

With either path, if you one day change assistants or stop using Alexa, the house stays the same because the logic lives in Home Assistant. We cover that in detail in Home Assistant in Colombia.

Commands people actually use

After the first week, people stop asking Alexa for the weather and stick to a few daily commands:

• "Alexa, turn everything off" when leaving or going to bed.
• Raising or lowering the AC without hunting for the remote. If your mini-split has no Wi-Fi, see universal AC control.
• Opening or closing blinds, covered in motorized roller shades.
• Light scenes, like "movie mode," that dim the lights and turn on the TV.

Name devices by room and keep the words short: "living light," "bedroom lamp," "study AC." Alexa gets less confused and anyone in the house can guess them.

Privacy

Alexa listens all the time for the wake word, and what you say after goes to Amazon. If that bothers you, Echo speakers have a mute button, and in the app you can review and delete voice history.

In rooms where you do not want a microphone, a button or a sensor does the same job without listening to anyone.

Where to start

One Echo in the living room and two or three Matter devices is a good trial. It lets you see whether voice helps day to day before you fill the house with speakers.

If you want to know what would make sense for the whole home, take the smart home test. It takes a couple of minutes and points you to a starting place.