There are 6 different Amazon Echo devices - here's which one is right for you

The Echo is the first mainstream — and arguably most successful — smart speaker you can buy. The device launched in 2014, and has since helped Amazon dominate the smart-speaker game — as of September 2017, analysts estimated that Amazon owned 76% of the smart-home market.

Three years after launch, the Echo was due for an upgrade. So in September, Amazon revamped the original Echo, introducing a second-generation version with new finishes and a reduced price tag of $100.

The new Echo has dual speakers, so it's a good option for playing music. With the new device, Amazon introduced multi-room audio, so you can play music from several Echo devices at once across rooms. The new Echo also has a powerful built-in Alexa, so it can also make calls, check the weather and traffic, request an Uber, or turn down the heat.

The original Echo does it all, and it's likely the best option for most people.

With more and more smart-home products coming online, it can be overwhelming to try to control them all. Enter the Amazon Echo Plus, which acts as a smart-home hub.

The Echo Plus, as its name denotes, is taller than the standard Echo, and costs $50 more at $150. But it can do many of the same things, like play music, send messages, and give you a daily news briefing.

What sets the Plus apart is its ability to control other "smart" devices. You can say, "Alexa, discover my devices," and it will find anything else online, like smart light bulbs or locks, and set them up for you. Plus, you'll be able to give the device a single voice command to control multiple actions from multiple devices at once.

Other Echo devices control your smart home, too, but the Echo Plus lets you integrate everything into one place with no need to download any of the "skills" you'd need to operate those features on the standard Echo.

The Echo Look is an Alexa-enabled camera that can take full-length photos or videos of you, help you build a "personal lookbook," and give a second opinion on your outfit.

By saying, "Alexa, take a picture" or "Alexa, take a video," the device uses its depth-sensing camera and LED lighting to capture your look and create a lookbook of all your outfits. Amazon even built in "computer vision-based background blur" to make your outfit photos look more high-quality.

The device's app also has a feature called Style Check, which uses machine learning and a team of "fashion specialists" to help you compare two looks and decide which one is better.

The Echo Look can do many of the things a standard Echo can do, too. It can check your calendar, set timers, play music, control your smart home, and more.

The device was Amazon's first specialized device, and it's pretty clear that the Look isn't for everyone. It costs $200 — $100 more than the standard Echo — and it's available by invitation only. You can request an invitation to buy it on Amazon's website.

The $230 Echo Show is the most high-end Amazon device on the market, mainly because it can do it all.

It has powerful speakers like the Echo and Echo Plus, a full-service Alexa built in, smart-home controls, and music streaming.

But the Echo Show also has a seven-inch screen, which means you can watch videos and make video calls using the the device. You can also access a lot of popular Echo features in video form, like video flash briefings, on-screen music lyrics while you're streaming music, and visual weather forecasts and to-do lists.

You can also use the Echo Show to display your photos or see feeds from your security cameras or baby monitors.

There's one major limitation of the Echo Show, unfortunately: Due to the standoff between Amazon and Google, you can't watch YouTube videos on the device.

The Echo Spot is one of Amazon's newest devices, and arguably the best-looking one. The Spot — which costs $130 — is about the size of a softball, comes in black or white, and features a round screen.

The Spot is a good option for your bedside table, desk, or kitchen counter, much like the Dot, but it has a screen like the Show. On the surface, it actually seems like a fancy, tech-enabled alarm clock.

The Spot can do a bit more than tell the time, though. The device has Alexa built in, can play videos — which looks pretty unusual on a round screen — and it can make video calls to other Echo devices with screens, or anyone with the Alexa smartphone app.

Much like the Show, the Spot can also handle video news flash briefings, set a visual timer, or show you the forecast. You'll also be able to watch live video feeds on the Spot and control your smart home.

The Spot is also limited, however, in what videos it can play, and has a much smaller screen than the Show.

The $130 Amazon Tap is something of a cousin to the Echo family. It has Alexa built in, but it's more of a portable speaker than a stationary smart-home device.

The Tap is wireless, which means you can take it with you anywhere and stream music using Bluetooth. It comes with a charging dock, but Amazon says it provides about nine hours of music playback, and Alexa will let you know when the battery is running low.

Alexa on the Tap can also do many of the same tasks as an Echo — like read news headlines or order food — but you have to be connected to WiFi in order for Alexa to work. Tapping the top of the device will enable Alexa, or you can enable hands-free mode and use it like a standard Echo device.

The Tap is a good option for anyone looking for a portable speaker, or anyone who prioritizes music streaming over built-in "smarts."