01 · Speaker or screen?
A plain speaker like the Echo Dot, Echo Pop, or Nest Mini is the cheapest way in and is great for music, questions, and voice commands. A display like the Echo Show or Nest Hub adds a screen for your calendar, timers, recipes, and video calls — the real 'command center' feel. If this is your first device, a small display earns its keep on a nightstand or kitchen counter.
02 · Match it to your phone
Amazon's Alexa devices and Google's Nest devices don't mix, so pick one side and stay there. If you live in Gmail and Google Calendar on an Android phone, the Nest line feels natural. If you want the widest range of inexpensive smart plugs and add-ons, Alexa has more options. Choosing one ecosystem keeps everything talking to each other.
03 · Nothing permanent
Every pick here just needs a power outlet — no drilling and no landlord conversation. They set up in a few minutes over Wi-Fi, and at move-out you unplug them and drop them back in the box. If you want smart lighting too, start with plug-in bulbs or smart plugs that the same device can control.
04 · Subscriptions and privacy
These work fine straight out of the box, but some newer Alexa features may move behind a paid tier over time, so buy for what a device does today. On privacy, every model has a mic-off switch; the display models add a physical camera shutter, and the Nest Hub skips the camera entirely if you'd rather not have a lens in the bedroom.