If you've already connected the various devices and fixtures around your home -- perhaps it's something you've paid more attention to now that many of us are spending more time at home -- you'll know that there are many different ways to approach the problem. You might just need one device to address a particular issue, like a smart plug to put a lamp on a regular schedule. You might also already have an Amazon Alexa- or Google Assistant-powered smart speaker, or even Siri and Apple's HomeKit smart home service, and now you're thinking about how to build on what you already own.

I tend to think of the voice assistants as the starting point for building a do-it-yourself smart home. They offer a convenient way for family members or roommates to interact with the various devices without worrying about who has what access in a given app. Many, but not all of the products on our list of the best smart home products will work with multiple voice assistants.

Read more: 6 coolest smart home devices you didn't know existed

Tyler Lizenby/CNET

Our list focuses narrowly on the best product in each smart home subcategory. If you want to know the best smart thermostat or the best smart lighting kit, regardless of which voice platforms support it, we have you covered. What this list is not is a road map for a single, coherent smart home installation (you won't get far trying to pair an Amazon smart speaker with a Google smart display). For that, please refer to our platform-based lists linked below:

In each subcategory section, I've also added a link to the best list for that particular product type. If you're looking for more options for lighting or locks, you'll find a list of our favorite products if you'd like to see a broader selection. We regularly update this list as we review new products.

Ry Crist/CNET E D I T O R S ’ C H O I C E Amazon's entry-level Echo Dot had the edge over the competing Google Home Mini speaker, but with the arrival of the newer, rebranded Google Nest Mini, we're officially calling the entry-level smart speaker category a tie. Both speakers will run you about $50 on a normal day, and you can find both of them discounted regularly. The two voice assistants are pretty much at parity right now. Amazon usually boasts about more skills and support for more third-party devices, but the numbers for both voice platforms are in the tens of thousands, meaning the difference isn't enough that you'll really miss out on anything significant with Google. Read more: The best smart speakers of 2020 Google Assistant does a better job at mimicking natural conversation flow, but the difference is that it isn't really that noticeable in your day-to-day interaction with each speaker. Most of the time you'll ask a smart speaker for the weather, to set a timer, and maybe have it play a song or two. Both devices are good at all of that. The Amazon Echo Dot was our pick due to one small hardware advantage. It has an audio-out jack. The Google Home Mini doesn't, and neither does the Nest Mini. Now, the Echo Dot also offers a variant with an LED clock embedded around its edge, for $10 more. That's a convenient quality-of-life feature. Google has another card to play, which you can read below. Read our Amazon Echo Dot (third-generation) review.

Tyler Lizenby/CNET E D I T O R S ’ C H O I C E Google's new Nest Mini smart speaker improves on its predecessor, the Google Home Mini, in a few ways. Google improved the audio quality in the Nest Mini, giving its bass output more oomph. It also added a wall mounting notch to the underside it, if that's what you're into. An interesting new presence detection method that uses the speaker and microphone to determine your proximity to the Nest Mini helps it trigger LED indicators that help you make better sense of the otherwise obscured physical volume controls. That's all fine, but the thing that puts the Nest Mini over the edge is the machine learning chip embedded inside the tiny speaker. With that chip, Google says the Nest Mini can learn what commands you give to it most often, and it will then begin to process those commands locally, rather than on Google's servers. Anything that helps to keep control of your smart home inside your home is worthwhile. Letting you still issue certain voice commands even if the internet goes out, and improved response times are great, too. For all of that, the machine learning chip puts the Google Nest Mini at parity with the Amazon Echo Dot and its distinct audio-input jack. Now let's see a speaker that has both. Read our Google Nest Mini review.

Chris Monroe/CNET E D I T O R S ’ C H O I C E Amazon's midtier smart display is the best one in its line. For $130, the Echo Show 8 has great audio quality, a highly visible screen and a convincing nod to privacy with a physical shutter you can slide over its camera. We still like the interface better on the Google Nest Hub and Nest Hub Max. Those Google Assistant displays also have the edge in useful video due to the voice-activated YouTube integration, which Amazon's lineup lacks. Regardless, for those of you who are committed to an Alexa-only ecosystem, the Echo Show 8 is the best smart display. Read our Amazon Echo Show 8 review.

Chris Monroe/CNET We often point to smart plugs as the entry point for anyone interested in trying out a connected home device. They're cheap, they're simple to install and they perform a function that's pretty easy to grasp, toggling power on and off remotely. Read more: The best smart plugs of 2020 You can find a lot of smart plugs out there. TP-Link's Kasa Mini is our favorite. It includes a single outlet that connects to your network via Wi-Fi. The app is well-designed and lets you program the plug to turn on or off on a schedule or even based on your location. It works with Google Assistant and Alexa, and it doesn't cover up the adjacent outlet on a standard two-outlet wall fixture. Read our TP-Link Kasa Smart Plug Mini review.

Chris Monroe/CNET E D I T O R S ’ C H O I C E Like its competitor, the Nest Learning Thermostat chief among them, the Ecobee SmartThermostat is a WIFi-based thermostat that lets you control your home heating and air conditioning system with an app or with your voice. A few features help it stand out. Ecobee set itself apart with its earlier products by including a remote temperature sensor in the box with the thermostat. The thermostat itself can read the ambient temperature of whatever room it's in and adjust accordingly. If you want it to adjust the temp based on the conditions in another room, just switch it over to the remote sensor. This is a useful accessory if your thermostat install point isn't in a central location, or if you want to make sure a nursery or your home office is the focal point for the Ecobee's temperature readings, rather than a far-flung hallway. Read more: The best smart thermostats of 2020 You can buy the same accessory for a Nest thermostat, but Ecobee includes one in the box. Ecobee is also more agnostic about working with voice assistants than its Google-owned competitor. Where Nest will work with Google Assistant and Amazon Alexa (maintained perhaps as a legacy function from before Google purchased Nest), Ecobee supports Alexa, Google Assistant, and Siri. Perhaps most unique, the Ecobee SmartThermostat is itself an Amazon Echo speaker. You won't be impressed by its audio output for playing music, but as a basic extender for Alexa around your home, the Ecobee does an admirable job. Maybe you actually want Alexa in that far-flung hallway. Read our Ecobee SmartThermostat review.

Arlo E D I T O R S ’ C H O I C E The Arlo Pro 3 is our new favorite smart home camera, taking over the crown from its predecessor, the Arlo Pro 2. It's not cheap to get started with Arlo cameras. The most affordable starting package for Arlo Pro 3 costs $500 and includes two Pro 3 cameras and the required wireless base station. If you can get past that initial investment, you'll be able to take advantage of the most versatile video camera set up on the market. Every additional Arlo Pro 3 will cost $199. That's expensive, but it also about the same as a single Nest Cam Outdoor, another well-regarded outdoor Wi-Fi security camera. If you already own an Arlo Pro base station from an earlier kit, the Arlo Pro 3 will work with that as well. We have always liked Arlo's cameras for their battery-powered, weatherproof design that makes that suited for use indoors or outdoors. You can power them with a cable, or with the included, rechargeable battery for up to six months. An easy-to-install magnetic base also gives you almost infinite flexibility in terms of how you want to position each camera. They can also stand by themselves without a base on any horizontal surface. In short, you can put these cameras anywhere, or move them between locations with incredible ease. What's new with the Arlo Pro 3 is a higher resolution video feed than its predecessor (2K versus 1080p), and a siren built into the camera, as opposed to the base station. Now you have an outdoor deterrent for any would-be intruders. For the sake of your neighbors, please use it with restraint. Want just an affordable indoor cam? The Alexa-supporting $30 Wyze Cam Pan is our current favorite. No other camera comes close to the Wyze in terms of features for the dollar. But for an indoor/outdoor, whole-home installation, the Arlo Pro 3 gets the nod. Read our Arlo Pro 3 review.

Chris Monroe/CNET E D I T O R S ’ C H O I C E Cameras are one thing, but if you're really concerned about security across your entire home, your best bet is the SimpliSafe 3.0 kit. It starts at $229 for the base station, a keypad, a motion sensor, and an open/close sensor. That's a start, but one of the things we like most about SimpliSafe is the ability to customize your set up from a selection of eight different sensors, from smoke to glass-break. Unlike many whole-home security systems, SimpliSafe requires no contract to lock you into its service plan. You can opt into a $15-a-month professional monitoring package, but it's not required, and you can cancel at any time. Read more: The best home security systems of 2020 Competing systems from Ring, Nest, ADT and Vivint all offer similar-seeming combinations of hardware and a la carte service, but they all offer either too few features if you don't opt-in to a service package, or start at significantly higher price points than SimpliSafe without making up the difference in better hardware. The one system we like that comes close is Abode, which has a higher starting price, but deeper integration with other smart home devices. Look into Abode if you don't mind paying a little more upfront and you want it to work with other products. As a standalone product, SimpliSafe is our top pick. Read our SimpliSafe review.

Tyler Lizenby/CNET E D I T O R S ’ C H O I C E The hardwired Nest Hello video doorbell connects to your Wi-Fi network so you can see who's at the door in real time. It can also capture and store three hours worth of video clips for free. But the most compelling thing about it is the owner-controlled facial recognition feature. Read more: The best video doorbells of 2020 Facial recognition has its controversies, but the way Google uses it in the Nest Hello doorbell seems like the right way to do it, at least until the next data privacy scandal. Unlike many commercial systems which pull from existing databases to make a match, Nest Hello helps you build your own personal facial recognition database based on the people that come to your door. Once you tag the most common visitors, the app will eventually recognize them, and alert you when they show up at your door. The Nest Hello's normal listing price is $230, which is on the high end of the scale. Read our Nest Hello review.

Chris Monroe/CNET E D I T O R S ’ C H O I C E Smart locks make people nervous because they insert another point of failure between you and your physical security. With a smart lock, a malicious hacker, or even a plain old technical failure or connectivity issue could all of a sudden compromise the entry point of your home. There might be some truth to that. A keyless design with no physical failsafe could indeed lock you out but the August Wi-Fi Smart Lock isn't one of those locks. Read more: The best smart locks of 2020 The August Wi-Fi Smart Lock is a breeze to install. It fits over the internal thumb latch of most existing deadbolt designs, and you can set it up in 10 minutes. Because it doesn't replace the lock mechanism itself, you can still use your original, physical key. It's good looking too, and 45% smaller than older August models. The lock itself connects to your phone via Bluetooth or Wi-Fi, and from the August app, you can assign and revoke timed virtual keys to anyone you like, from your in-laws to your dog sitter, at no extra cost. Many other locks will charge extra for virtual keys. Because this model has Wi-Fi built in, you won't need to purchase the August Connect accessory to enable remote access. Simply setup your lock with Wi-Fi in the app, and you can not only control the lock from anywhere, but you can also connect it to Alexa, Google Assistant, or Siri (be sure to make each of them require a PIN to accompany the unlock command) for added convenience. Another accessory included with the Wi-Fi Smart Lock model is the tiny open-close sensor. This lets the lock tell you if it's locked or unlocked and lets you know if the door itself is open or closed. It's the most complete product available on the market for now. Read our August Wi-Fi Smart Lock review.