25 ‘Convenient’ Appliances That Are Actually Designed to Make You Spend More

They’re marketed as time-savers, game-changers, or just plain smart—but many of today’s so-called “convenient” appliances come with a hidden catch. Whether it’s pricey refill pods, hard-to-replace parts, or features locked behind a paywall, a surprising number of everyday gadgets are designed to keep you spending long after the initial purchase. From coffee makers that reject off-brand pods to smart devices that collect your data or stop working without subscriptions, these appliances often prioritize profit over practicality. The convenience may be real, but so is the cost. Here are 25 “convenient” appliances that are actually built to make you spend more.

Smart Refrigerators

Smart fridges often come with features like touch screens, built-in cameras, and app connectivity that feel advanced but may not offer much everyday value. Many models rely on proprietary apps that collect user data and display brand-specific content. When software updates stop, certain functions may no longer work, even if the appliance itself is still in good condition. Some models also require subscriptions to unlock their full range of features. Repairs and replacement parts typically need to be sourced through the manufacturer, which can increase service costs. Integration with branded grocery services may guide users toward select retailers. Overall, these fridges tend to emphasize connectivity and brand integration more than long-term practicality.

Inkjet Printers

Many inkjet printers are priced below cost because manufacturers earn revenue from selling replacement cartridges. These cartridges often include digital restrictions that prevent the use of alternatives. Some printers will stop working entirely if a single color runs out, even when printing in black and white. Subscription programs are also common, tracking usage and billing users based on activity. In some cases, cartridges come with expiration dates that require replacement even if they have not been used. These systems are designed with a focus on ongoing sales rather than long-term performance or user control.

Dishwashers

Modern dishwashers often include energy-efficient cycles that sound appealing but may not clean thoroughly on the first run, leading users to repeat cycles. Many models now rely on complex electronic components that can stop working after only a few years. Repair parts are frequently brand-specific and can be expensive. Service plans and extended warranties are commonly promoted, which suggests reliability may vary. Some units are now designed with internet connectivity for diagnostics, which can introduce new technical issues. There is limited focus on creating machines that are simple to repair or built to last for the long term. Instead, the emphasis appears to be on adding features and encouraging frequent upgrades.

Robot Vacuums

These devices often depend on apps that collect user information, including details about home layouts. Many require a constant internet connection to operate or store data, which raises privacy questions. Some features are locked behind paid subscriptions. Batteries tend to wear out quickly and can be difficult to replace. Software updates may cause older models to stop working properly or lose functionality. While they offer convenience, they are sometimes not designed for long-term use. The result is a cycle where users are encouraged to upgrade frequently in the name of progress.

Pod Coffee Makers

Many modern coffee systems rely on specially designed pods that tend to cost more and create more waste compared to traditional methods. Some models are designed to work only with brand-approved pods, limiting the use of reusable or third-party options. Certain machines also monitor usage and prompt users to order refills directly from the manufacturer. Newer models often replace older ones by phasing out compatibility with less expensive alternatives. Repairs are typically not cost-effective, which can lead to more frequent replacements. While convenience is often emphasized in marketing, the actual coffee quality may not always match expectations.

Smart Thermostats

Smart thermostats are often marketed as tools for improving energy efficiency, but they also come with added complexity. Many models collect data about household habits to optimize performance. Some features may only be available through paid subscriptions. Remote access through smartphone apps can stop working if the software is no longer supported. These devices are typically designed to work best within specific product ecosystems, which can limit compatibility with other brands. Installation or repair may require professional help, especially for certain systems. Because these thermostats track usage patterns, they may also raise questions about data privacy.

Microwave Ovens with Sensors

Sensor-based microwave models sometimes deliver uneven heating results, despite their advanced features. The added technology can increase the price without a noticeable improvement in everyday use. Because the electronics are more complex and compact, repairs may be more challenging. Some designs focus on sleek controls and appearance, which can reduce the reliability of mechanical components. Extended warranties are commonly offered, which reflects a general concern about long-term durability. Built-in versions are also harder to replace, especially when cabinetry is custom-fit. While marketed as smart solutions, these appliances often offer convenience that may not translate into consistent performance.

Electric Toothbrushes

Many electric toothbrushes now include features like Bluetooth connectivity, app support, and optional brush head delivery plans. Some models use unique charging bases that are not interchangeable. Timers and pressure sensors are common additions, though their impact on brushing habits may vary. Replacement brush heads can be more difficult to find in stores and often cost more through official sources. Battery performance may decline with regular use, and many models are not designed with user-accessible components. Delivery programs and companion apps often encourage brand loyalty and ongoing use of specific accessories.

Washer-Dryer Combos

These combined units are designed to save space and simplify laundry routines, but they often come with trade-offs. Cycle times can be significantly longer compared to using separate appliances. Because of the integrated design, repairs may be more complex and costly. Some models use app-based systems for diagnostics, which may become less effective if software updates are no longer supported. Others are built to work with specific detergent formats, limiting user choice. While the technology aims to streamline laundry, it can sometimes reduce flexibility and increase maintenance demands.

Streaming Media Boxes

Streaming devices are generally affordable and convenient, but they often prioritize content from their own platforms. Sponsored channels and advertisements are commonly built into the interface. Some features may require paid subscriptions, and system updates can occasionally change the layout or functionality without warning. Older models may lose support over time, encouraging users to purchase newer versions. These devices typically collect user data, though details about how it is used are not always clear. Their design often encourages users to stay within a particular content ecosystem.

Wi-Fi Routers from ISPs

Some internet providers offer routers to customers for a monthly rental fee, which can end up costing more than buying a device outright. These routers are often limited in terms of user control, with settings and firmware updates managed by the provider. While they may be convenient, the performance and features can fall short of what many third-party models offer. Even though customers pay regularly, upgrades and replacements are not always provided. For those looking to improve speed or reliability, purchasing a personal router is often a more cost-effective and flexible option, though it may not be widely promoted.

Smart TVs

Smart TVs often track viewing habits, including what content is watched, when it’s viewed, and for how long. Many come with built-in software that cannot be removed and interfaces that include advertising. Some models work closely with advertising partners to personalize what appears on screen. Certain features may depend on regular software updates to function properly. Privacy controls are sometimes difficult to find or limited in what they can change. The technology is often designed with business insights in mind rather than just the viewing experience.

Single-Serve Blenders

These compact blenders are designed with tightly integrated parts, which can make it challenging to find compatible replacements outside the original manufacturer. Some models require specific components to be recognized before they function properly. The motor power tends to be on the lower end, which helps keep the cost down but may affect performance. While they are promoted as a convenient solution for quick blending tasks, their durability can vary. Warranty options are often basic, and repairs are not always straightforward.

Air Purifiers with Filter Subscriptions

Some air purifiers are designed to work only with specific filters that require frequent replacement. Many include timers that suggest changing the filter after a set period, even if it’s still effective. At the time of purchase, buyers are often encouraged to sign up for automatic filter deliveries. In some cases, the units may not function with third-party filters. These devices are positioned as tools for better air quality, but they also create ongoing costs for the user. Information about how well the filters actually perform is often limited.

Cordless Vacuum Cleaners

Cordless vacuums prioritize portability and convenience, but they are often built with features that make long-term maintenance challenging. Batteries tend to wear out over time and are usually not designed for easy replacement. Many models are only compatible with specific chargers or attachments, which can limit flexibility. Internal components are often sealed during manufacturing, making repairs difficult. When replacement parts are available, they may come at a premium and are typically sourced from the original manufacturer.

Countertop Ice Makers

These compact machines are often seen as convenient, but many tend to have a short lifespan. Repairs can be difficult or not cost-effective, and maintenance supplies like filters and cleaners are usually sold separately. Some models come with features such as app connectivity, which may not add much to the overall experience. Replacement parts can be surprisingly expensive, sometimes approaching the cost of a new unit. Due to their smaller size, these machines usually offer lower output and slower operation compared to larger built-in alternatives. While they appeal to buyers looking for quick solutions, they may not always deliver long-term value.

Electric Kettles with Smart Features

Smart kettles offer modern features like temperature presets and remote control through an app. While these upgrades sound convenient, they often don’t deliver a consistently smooth experience. Some users report connection problems or unreliable software updates. The price is also much higher compared to standard models, despite limited improvements in everyday use. Materials used in parts like lids or spouts may not hold up well over time, and repairs can be tricky due to the way they’re built. These kettles often focus more on design and features than on long-term durability or ease of maintenance.

Smart Locks

Smart locks provide convenient keyless entry and app-based control, but they can come with trade-offs. Many depend on internet connectivity, so service interruptions may limit access. Battery life can be short, and some units offer limited or inconsistent low-battery alerts. Certain features may only be available through paid subscriptions. Some designs do not include strong mechanical backup systems, which can limit manual override options. If the manufacturer stops offering support, functionality may be affected.

Fitness Machines with Built-in Subscriptions

Modern fitness machines like treadmills and stationary bikes now include built-in screens that offer access to subscription-based workout content. Many features are only available with an active subscription. Some updates can change how older models function. The equipment is often linked to individual user accounts, which can make it harder to resell or transfer. While these machines are marketed as advanced fitness tools, they are increasingly designed to function as connected media platforms, with a focus on ongoing service access.

Voice Assistants

Voice-controlled smart devices are primarily designed to connect with cloud services, even for basic tasks like setting timers or checking the weather. Many of their features rely on internet access, and offline functionality is often limited. These devices regularly receive updates that can change how certain features work, and settings may need to be adjusted again after each update. Privacy options are available, but they can be complex to navigate. In the background, these systems gather data on usage patterns to improve personalized experiences and support targeted recommendations. While they offer convenience, they also serve broader functions beyond simple home assistance.

Electric Ranges with Touch Panels

Touch-panel electric stoves offer a modern appearance and streamlined interface, but they often add complexity to basic cooking functions. These digital controls can be more sensitive to wear and environmental conditions, and repairs may require specific components and authorized service. In some cases, software issues can affect usability. Traditional mechanical knobs are being replaced by digital alternatives, which prioritize style and technology integration. While the shift reflects current design trends, it can sometimes make simple tasks more dependent on electronic systems.

Smart Light Bulbs

Smart bulbs bring more features than traditional lighting, but they also introduce more moving parts. Many rely on apps, hubs, or Wi-Fi to function fully, turning a simple light into a connected device. Updates may change how the bulbs work or affect compatibility with older setups. Some models depend on a steady internet connection and may lose certain functions when offline. Data on lighting habits is often recorded to shape future updates or product design. Advanced features like custom routines are sometimes tied to paid plans. For most homes, the light quality and efficiency are similar to regular LED bulbs, but the added tech mainly supports larger smart home setups.

Pet Feeders with Wi-Fi

Wi-Fi pet feeders often rely on cloud services to manage feeding schedules. If the app or servers are unavailable, the device may not function as expected. Some models include monitoring tools that are only available through subscription plans. The build quality can make repairs difficult, and offline features are usually limited or hidden in settings. What was once a simple task—dispensing food—now includes added layers of connectivity and features. These devices often focus more on integration and tech appeal than on straightforward, dependable use.

Sous Vide Machines with App Integration

Sous vide machines with smart features often rely on apps for full functionality. Physical controls may be limited, encouraging users to pair the device with a phone. If the supporting app or service is phased out, key functions can be affected. Some recipe content and settings are tied to subscription access. Software updates may change how older units operate. These machines are designed to integrate with connected platforms, which adds convenience but also creates reliance on external systems. A simple cooking tool becomes part of a broader digital ecosystem.

Digital Photo Frames

Digital photo frames with cloud features often include subscription plans for added storage or expanded options. Without a plan, the number of photos users can display may be limited. Uploading images to connected services can raise privacy considerations, depending on how the data is handled. Firmware updates or service changes may affect how the frame performs over time. Using offline methods to load photos is possible but often less convenient. These frames are designed to offer a modern way to enjoy personal memories, though they depend on ongoing digital support to work as intended.