Here Are 55 Top Rated Smart Devices on Amazon, All Under $40

The Refoss smart garage door opener is compatible with most major garage door opener models, offering a convenient solution to control your garage remotely without any hidden or monthly fees. Using the Refoss app on iOS or Android, you can open, close, and check the status of your garage door from anywhere, and it also integrates with Google Assistant and Alexa for voice control. You'll receive notifications to remind you if the door has been left open for too long or overnight, helping you stay alert to its status.

This water leak detector is a reliable tool for preventing costly water damage in your home. Equipped with 4 rear water leakage probes and 2 front drip probes, it immediately alerts you to the presence of water with a loud 100dB alarm, ensuring you can act quickly before a small leak turns into a bigger issue. No complicated setup is needed—just place it wherever leaks might occur, such as under sinks or near water heaters. Its IP66 waterproof rating allows for long-term use in high-humidity areas, and with energy-efficient design, the battery can last up to two years.

This smart plug brings convenience and control to your fingertips, allowing you to manage devices from your smartphone or through voice commands with Alexa or Google Assistant. With a simple setup and compatibility with secured 2.4GHz Wi-Fi, this plug offers custom control for each individual socket via the VeSync app. It's perfect for indoor use, such as automating holiday lights or fountains, with a power rating of 15A/1800W. You can set schedules, timers, and even sync your devices with sunrise and sunset times for hands-off operation.

This smart curtain shutter allows for effortless control of two roller blinds or shutter curtains with independent control modes. You can manage the blinds remotely via the Smart Life or Tuya app, or use voice commands with Amazon Alexa or Google Home for hands-free convenience. For added flexibility, the device is also compatible with RF remote switches (1527 encoding). The simple switch panel features four buttons for easy operation, and you can stop the curtains instantly by pressing the close/open button twice.

The HUSSELL 5-port car charger adapter allows you to charge multiple devices at once while on the road. With a total output of 5.4A, it provides fast and efficient charging for smartphones, tablets, and other USB-powered devices. Its small design fits neatly into your car’s power outlet, and each port delivers the optimal charge for your devices.

This outdoor smart plug provides an easy and flexible way to control outdoor electronics with individual control of its two AC outlets. Each outlet operates independently, allowing you to control multiple devices like holiday lights, pool pumps, or landscape lighting separately, with a maximum load of 15A/1875W per outlet. Designed with weather resistance (IP64 rating) and a waterproof cover, it's built to withstand the elements while offering a Wi-Fi range of up to 300 feet.

The Govee Glide light panels are designed to be used exclusively with the Govee H6061 light panels, allowing you to creatively extend and enhance your existing setup. These panels cannot function independently, but when connected to the H6061, they add unique and dynamic effects, with each edge displaying different light colors to create smooth transitions and gradient effects.

The Vision indoor/outdoor camera gives you sharp 1080p video, so you can keep an eye on your home whether you’re inside or out. It works with your smart assistant, letting you control and monitor the camera with simple voice commands. Night vision makes it so you get clear footage even when it’s dark. Built to handle different weather conditions, this camera is a solid option for keeping your home secure all year round.

These 100ft LED strip lights are the perfect way to transform and add a vibrant touch to larger spaces like bedrooms, kitchens, or living rooms. The extra-long length gives you flexibility in decorating, while the Govee Home app lets you take full control, offering features like timers, music syncing, and 64 unique scene modes to match your mood or activity. Whether you want to light up a party with dynamic, music-synced effects or create a calm, ambient glow for a relaxed evening, these lights deliver.

The QINLIANF charger protector is a multi-functional wall outlet extender designed to accommodate a range of devices. It features four USB ports and five AC outlets, allowing you to charge several gadgets simultaneously, making it ideal for home or office use. Built-in surge protection makes sure that your electronics are safe from power spikes. The small, space-saving design fits neatly into any outlet without blocking other plugs.

The Apple AirTag is a small and easy-to-use tracking device that helps you find lost items like keys, bags, and more. With seamless integration into Apple's Find My network, it gives precise location tracking using your iPhone. The AirTag is water and dust-resistant, making it tough enough for everyday carry, and it has a built-in speaker that plays a sound when nearby, making lost items even easier to locate.

The Amazon Fire TV Stick 4K brings your favorite shows, movies, and apps to life with crisp 4K Ultra HD streaming. It offers access to popular platforms like Netflix, Prime Video, and Hulu, along with live TV options. Equipped with the Alexa Voice Remote, you can search and control your media or other smart devices hands-free.

The Roku Express is a streaming device that provides access to popular platforms like Netflix, Hulu, and Disney+. With HD quality and a simple setup, it’s a great choice for anyone looking to turn their regular TV into a smart one. The included remote makes navigation easy, and it connects wirelessly to your internet for an effortless streaming experience.

This replacement TV remote works seamlessly with Westinghouse, Roku, and Insignia smart TVs, offering a simple setup—just insert the batteries and you’re good to go. With essential buttons for streaming services, volume control, and navigation, it’s designed for easy, everyday use. There's no need for complicated programming or pairing, making it a great solution when your original remote is lost or damaged.

This Amazon Mission power USB cable is designed for reliable charging and data transfer with a range of devices. Its length provides flexibility, making it easy to connect devices even in hard-to-reach places. The cable’s sturdy build makes you have a consistent connection and performance.

The Blink mini pan-tilt camera delivers clear 1080p HD video and features adjustable pan-and-tilt functions for a full view of your space. You can monitor live video from your phone using the Blink app, which also supports motion detection alerts. The camera includes two-way audio, allowing you to hear and speak to anyone in the room. Its small design makes it easy to place and adjust in many different locations around your home.

This wireless charging pad for Kindle Paperwhite and Signature Edition makes it easy to keep your e-reader charged without dealing with cables. Just place your Kindle on the pad and it will start charging, so you can enjoy a clean and simple setup. The design blends well with your reading space and fits both the Paperwhite and Signature Edition models.

This certified refurbished Blink video doorbell camera provides clear 1080p video and two-way audio, so you can see and talk to visitors from your smartphone. It features motion detection alerts, so you'll know when someone is at your door, even if you’re not at home. The doorbell integrates with your existing doorbell wiring, offering a straightforward setup. Refurbished to meet high standards, it’s a cost-effective option for upgrading your home security.

The Amazon Echo Pop is a smart speaker that brings Alexa’s voice assistance to your home with crisp sound quality. Its design allows it to fit easily into any room, whether you’re placing it on a shelf or a counter. You can use it to play music, set reminders, control smart home devices, and more, all through simple voice commands. With a range of features and a clean look, it’s a great addition to any living space.

These Bluetooth workout headphones offer wireless freedom and a secure fit, making them perfect for active use. With sweat and water resistance, they can handle intense workouts and outdoor activities. The headphones provide clear sound and stable connectivity, making sure you stay motivated with your favorite tunes.

These Bluetooth sleep headphones are designed for comfort and relaxation, featuring a soft, adjustable headband that fits snugly without causing discomfort. They offer wireless connectivity for a tangle-free experience, allowing you to listen to soothing sounds or calming music as you drift off to sleep. The headphones are equipped with a long-lasting battery, providing extended use throughout the night.

This Bluetooth speaker watch is a unique combination of wearable tech and audio convenience. You can listen to your favorite music and take calls right from your wrist with its built-in speaker and easy Bluetooth connection. With its modern look and long-lasting battery, it’s a great way to stay connected and entertained throughout the day.

The Anker SoundCore Bluetooth speaker delivers impressive sound quality with deep bass and clear highs, perfect for enjoying your favorite music. It offers up to 24 hours of playtime on a single charge, making sure you can keep the music going all day. The speaker’s small design makes it easy to take with you wherever you go, while its sturdy build can handle everyday use.

With dimmable settings ranging from 1% to 100% brightness and a warm 2700K glow, these bulbs provide vibrant and natural lighting, perfect for spaces like the bathroom, kitchen, or living room. Not only can you adjust the brightness via the YEELIGHT app, but you can also use voice commands through Alexa, Google Home, SmartThings, and more for hands-free control. Create personalized lighting scenarios for activities like reading, watching TV, or even showering, and set schedules with the timer function to automate your daily routine.

The Kasa smart motion sensor offers a hands-free way to control your lights, making it perfect for high-traffic areas like bedrooms, hallways, and bathrooms. It automatically turns lights on when motion is detected and off after a preset time, so you don’t have to worry about flipping switches. Plus, with daylight detection, the sensor prevents unnecessary light activation during the day. For added security, the Away Mode simulates occupancy by turning lights on and off at different intervals when you're not home. You can control the sensor via voice commands using Alexa or Google Assistant, or through the Kasa app for remote access.

Whether you want to create a mood for a movie night or set a calming vibe for "me-time," this bulb delivers a rich array of hues to suit any occasion. At 800 lumens, it's bright enough to light up an entire room but can also be dimmed down to just 1% for a more subtle glow. Voice control compatibility with Alexa, Siri, and Google makes it easy to adjust the lighting from anywhere, and the ability to schedule lighting patterns helps you transition seamlessly from morning to night.

The Nest temperature sensor is a handy accessory for anyone with a compatible Nest thermostat, helping to ensure that every room in your home is as comfortable as you want it to be. By placing sensors in specific areas, like a bedroom or living room, you can let the thermostat know the temperature in that exact space, so it can adjust heating or cooling accordingly. It’s especially useful for homes where temperature preferences vary from room to room. The sensor is wireless, powered by a long-lasting battery (up to 2 years), and easy to set up—just place it on a shelf or mount it on the wall.

The Kasa smart plug offers a practical way to control your home electronics remotely. It works with both Alexa and Google Home Assistant, allowing you to turn devices on or off with simple voice commands. Through the Kasa app, you can manage appliances from anywhere, whether you're at home or away, and set timers or schedules for devices like lamps, fans, or Christmas lights.

These LED strip lights are compatible with Alexa and Google Home, allowing you to adjust brightness, colors, and even switch between lighting scenes using voice commands. The app provides additional control, enabling you to create personalized modes and set the perfect ambiance for any occasion. Thanks to a built-in mic, the lights can sync to music, making them ideal for parties or relaxing with your favorite playlist.

This mini bluetooth speaker is compact yet delivers impressive sound quality with clear audio and surprisingly strong bass, thanks to a high-performance driver and passive subwoofer. Despite its small size, it provides room-filling sound, making it ideal for streaming music from services like Pandora or Spotify via your smartphone or other Bluetooth devices. Weighing just 6.2 ounces and equipped with a metal hook and protective carrying case, this portable speaker is perfect for on-the-go listening

The TREATLIFE smart light bulbs offer a convenient and customizable way to enhance your home's lighting. With remote control via the Treatlife app, you can easily manage your lights from anywhere, set schedules, and automate them to simulate presence when you’re away. Compatible with Amazon Alexa and Google Home, the bulbs allow for effortless voice commands like adjusting brightness or turning lights on and off, perfect for when your hands are full. Offering 16 million colors and tunable whites (2700K-6500K), you can set the perfect mood for any occasion, from festive holiday decor to cozy evenings.

This smart light switch by Treatlife makes managing your home lighting simple and convenient. While it requires a neutral wire, no hub is needed, and it connects to 2.4GHz Wi-Fi for smooth operation. Once set up, you can control your lights via voice commands through Alexa, Google Assistant, or SmartThings, making it easy to adjust lighting without lifting a finger. The Smart Life app allows you to manage lights remotely, set schedules, check real-time light status, and group lights for added convenience.

The Wyze Smart Scale X offers a comprehensive way to track your health, measuring not just weight but also body fat percentage, BMI, muscle mass, and more. It syncs this data wirelessly to the Wyze app, allowing you to monitor your progress over time. With special modes for weighing pets, luggage, or even multiple people at once, this scale is versatile enough for various needs. The scale’s ITO-coated tempered glass provides highly accurate readings, which are displayed on its sleek digital LED screen.

This Kasa smart dimmer switch makes it easy to control your home’s lighting from anywhere, providing convenience and customization. Once installed, you can turn lights on or off remotely via the app, or use voice commands through Alexa or Google Assistant, which is perfect when your hands are full. With features like “Gentle Off,” you can dim the lights gradually for a softer transition, ideal for bedtime routines. You can also set up advanced schedules and timers to automate your lights, or use Away Mode to give the appearance that someone is home, enhancing security.

This Govee Hygrometer Thermometer is an easy-to-use device that helps you monitor temperature and humidity levels in your home with precision. Simply pair it with the Govee Home app via Bluetooth, and you'll receive instant notifications when changes occur, even up to 196 feet away. Equipped with a Swiss-made sensor, it offers highly accurate readings with a temperature accuracy of ±0.54°F and humidity accuracy of ±3%RH, refreshing every 2 seconds for real-time updates.

This smart ceiling fan switch is a convenient 2-in-1 smart switch that allows you to control both your ceiling fan and light from anywhere via a smartphone app or with voice commands through Alexa and Google Assistant. It offers 4 fan speed settings and smooth dimming for lights, giving you full control over your room's comfort. Designed for single-pole use, this switch requires a neutral wire and is compatible with 2.4G Wi-Fi (not 5G), but no hub is needed for setup.

With its large 400ml water tank, this smart essential oil diffuser can provide up to 12 hours of continuous mist, helping to keep your space refreshed throughout the day or night. The diffuser uses ultrasonic frequencies to vaporize water and essential oils, preserving their therapeutic properties and avoiding the heat damage associated with older models. You can also create custom schedules in the app, allowing you to automate the diffuser’s operation based on your preferences.

Constructed from durable aluminum alloy, this deadbolt provides reliable home security with IP54 weather resistance, anti-peeping protection, and a solid lock cylinder. It's easy to install with just a screwdriver, making it suitable for most users. The lock also includes a low battery indicator to prevent getting locked out unexpectedly.

The Smart Remote RM4 Mini and Sensor cable set allows you to control over 50,000 IR-controlled devices like TVs, air conditioners, and amplifiers, while also monitoring room temperature and humidity with the included sensor cable. Compatible with Alexa, Google Assistant, Siri, and IFTTT, you can manage your devices through voice commands or automate routines via the BroadLink app. The app lets you create timers and scenes, and share control with family members.

The MultiRelay allows you to control three dry contact relays independently through your Z-Wave hub (required, sold separately) or an optional manual wall switch. It’s ideal for automating devices like garage doors, gas fireplaces, sprinklers, and more, handling up to 240V and 20A per device.Featuring Z-Wave Plus with S2 security and signal boosting, the MultiRelay also remembers settings after a power outage.

The Zooz 800 Series motion sensor offers fast and reliable motion detection for Z-Wave smart home systems, ideal for automating lights or enhancing security. It features adjustable motion sensitivity, retrigger time, and a built-in Z-Wave range test tool for easy troubleshooting. Powered either by a battery (lasting up to a year) or a micro USB cable (not included), it can also function as a signal extender when connected via USB.

These TV LED lights with RGBIC effect create a stunning, dynamic visual experience by allowing multiple colors to chase in a line, providing a rainbow-like glow behind your 60-75 inch TV. The accompanying "Magic Lantern" app offers hassle-free control, letting you adjust the lights remotely and set timers. With a built-in high-sensitivity mic, the lights sync to music and sound, making them ideal for immersive TV watching, gaming, or festive decorations.

This water leak sensor uses LoRa-based technology to provide reliable water leak detection with a long range of up to 1/4 mile in open air and a battery life of over 2 years. Unlike traditional sensors, it operates independently of WiFi, ensuring functionality even if power or internet is lost, thanks to its device-to-device pairing. The 4.2-foot rope-style sensor cable can be placed in confined spaces like under dishwashers or around water heaters, with the option to add additional cables for larger areas.

This fitness tracker watch keeps you connected and active with a range of smart features. Once paired with your phone via Bluetooth, you can make and receive calls, as well as get notifications for social media, emails, and SMS messages, though it cannot reply to messages. The built-in voice assistant allows you to control smart home devices, set reminders, and check the weather hands-free. Ideal for fitness enthusiasts, it monitors heart rate, stress levels, and supports over 100 sports modes to track your steps, calories, and distance.

The Wyze Cam Pan v3 is designed to provide reliable monitoring in any environment. With its IP65 rating, it can withstand outdoor elements, like rain, when paired with the Wyze Outdoor Power Adapter (sold separately), while also being suitable for indoor use, such as in a nursery. It offers full 1080p HD video streaming with pan, tilt, and zoom functions, allowing you to remotely control and check any area of the room through the Wyze app. You can also set up automatic monitoring with predefined waypoints, providing 360° horizontal rotation and 180° vertical tilt. The camera’s motion-tracking feature follows movement, ensuring you capture every moment.

This LED night light provides just the right amount of illumination to light up dark spaces without interrupting your night’s calm. You can choose from millions of colors or opt for warm white light, with smooth color transitions or a steady glow to fit any mood. Equipped with a motion sensor and adaptive lighting in auto mode, it’s perfect for lighting hallways, bedrooms, and other areas.

This night light features a sleep-friendly amber LED, emitting 20 lumens of soft light at 600Nm, which is less disruptive to sleep than traditional white light. Equipped with motion and light sensors, the nightlight activates only when motion is detected in the dark and shuts off automatically after 30 seconds of no movement to conserve battery life. Its durable, stand-alone design allows for easy placement anywhere without the need for installation.

The X-Sense smart smoke detector offers real-time monitoring and alerts via the X-Sense Home Security app, connecting directly to your 2.4 GHz Wi-Fi network without needing a base station. While multiple units cannot communicate with each other, they operate independently to provide quick notifications for alarms, faults, and low battery alerts. With an optional Protect+ Premium subscription, you can access 24/7 professional monitoring, ensuring emergency services are dispatched within seconds of an alarm. The smoke detector is equipped with a photoelectric sensor for reliable detection of slow-burning fires and boasts a 10-year lifespan.

This smart sprinkler timer allows for seamless irrigation control through its WiFi connectivity and Smart Life app integration. You can manage your watering schedule remotely, ensuring consistent garden care even when you're away. The timer uses 2.4GHz WiFi for a strong connection with a range of up to 650 feet, enabling easy operation from anywhere in your home. With its automatic mode, you can set customizable irrigation schedules, adjust watering times, and utilize rain skip features to save water on rainy days.