7 Smart Home Gadgets Under $100 That Make Sustainable Living Easy for Renters
Living sustainably often seems complicated, especially for renters who can’t install major appliances or renovate spaces. But with the rise of affordable smart home gadgets, making eco-friendly choices at home has never been easier—or more budget-friendly.
Below, discover seven smart gadgets under $100 that instantly upgrade any rental for greener living. Each device is renter-friendly, easy to install or move, and helps save energy, water, and resources with minimal effort.
Why Smart Gadgets Matter for Renters
Renters face unique challenges when trying to live sustainably:
- Limited ability to upgrade major systems (HVAC, appliances)
- Restrictions in making permanent changes
- Desire for easy setups and mobility
Smart gadgets are a game-changer. They:
- Work with existing fixtures and outlets
- Require no complex installation or landlord approval
- Are portable, so you can take them when you move
1. Smart Plugs: Instantly Cut Phantom Power
How Smart Plugs Help
Phantom (or standby) power is the electricity drained by electronics and appliances, even when they’re off. According to the U.S. Department of Energy, this costs the average household up to $100 per year. Smart plugs let you cut this waste—right from your phone.
Top Features
- Control devices remotely or by schedule
- Monitor real-time and historical energy usage
- Set “away” modes for vacation or sleep
- Works with Alexa, Google Home, and Apple HomeKit (check compatibility)
How to Use in a Rental
- Insert plugs into standard outlets—no wiring or tools needed
- Connect lamps, coffee makers, gaming consoles, or chargers
- Set routines to automatically turn off devices at night or when you leave
Tip: Check for models that track individual device use so you can see which gadgets use the most energy.
2. Smart LED Bulbs: Light Up and Save
How Smart Bulbs Save Energy
Traditional light bulbs waste energy as heat. LED smart bulbs use up to 80% less electricity and last up to 25 times longer. Plus, you can automate lighting for maximum efficiency.
Top Features
- Voice and app control for easy on/off
- Set timers or dim lights based on time of day
- Change color temperature for comfort and mood
- No need to replace rental fixtures—just swap the bulbs
How to Use in a Rental
- Replace existing bulbs in lamps or ceiling fixtures (check bulb size/type)
- Set bulbs to mimic sunrise/sunset for natural wake-up and wind-down routines
- Create “away” modes that simulate occupancy for security
Tip: If you move, just take your smart bulbs with you.
3. Smart Power Strips: Eliminate Standby Waste
Why Go Beyond Basic Power Strips?
A smart power strip takes energy savings further by automatically shutting off multiple devices. Great for entertainment centers or computer setups, where several items are often left plugged in and drawing power.
Top Features
- Control each outlet individually through an app
- Integrated timers and scheduling
- Surge protection for your electronics
- Some strips include USB ports for charging devices
How to Use in a Rental
- Replace your current power strip—no installation required
- Connect your TV, stereo, game consoles, and set auto-off after bedtime
- Monitor usage to identify energy hogs
Tip: Look for power strips with “master-slave” outlets, so your TV (master) can turn off connected devices (slaves) when powered down.
4. Smart Water Leak Sensors: Catch Leaks and Conserve Water
Why Leak Sensors Matter for Renters
Water leaks can go unnoticed, driving up water bills, encouraging mold growth, and damaging property. As a renter, early detection benefits you and your landlord. Smart water leak sensors make it easy to stay aware and protect your space.
Top Features
- Battery-powered and wireless—no installation hassle
- Send instant alerts to your phone at the first sign of a leak
- Place under sinks, near water heaters, toilets, or laundry areas
- Can often connect to smart home platforms for automated actions
How to Use in a Rental
- Simply place or stick sensors where leaks are most likely
- Test monthly and replace batteries as needed
- Notify your landlord immediately if a leak is detected to prevent bigger problems
Tip: Some insurance companies offer discounts for using water leak sensors.
5. Smart Thermostats (Non-Hardwired): Climate Control without Wiring
Portable Smart Climate Control
Most smart thermostats require hardwiring—off-limits for many renters. But today’s standalone smart thermostats (sometimes called “smart plugs for AC” or “smart remotes”) can control portable heaters, window AC units, or fans with no installation.
Top Features
- Wi-Fi or Bluetooth remote control for window units or portable devices
- Program timers and temperature schedules
- Geofencing to auto-adjust when you come and go
- Some models work via IR blaster and voice assistants
How to Use in a Rental
- Plug your window AC, fan, or heater into the device
- Connect to the app, set your temperature and schedule
- Reduce energy waste by only running devices when needed
Tip: Always check the wattage compatibility before connecting heaters or large appliances.
6. Smart Shower Timers: Save Water Every Day
How Timers Make a Difference
Showers are a key area for water (and energy) waste. The average shower uses around 2 gallons per minute, and small changes make a big difference. Smart shower timers make it easy and even fun to cut down.
Top Features
- Digital displays or colored lights show elapsed time
- Suction or stick-on, installs in minutes
- App-connected options offer usage tracking and gamification
- No plumbing or tool work required
How to Use in a Rental
- Stick to the shower wall or hang from the showerhead arm
- Set your target time and get alerts when you’re close
- Challenge roommates or family to save more water
Tip: Combine a timer with a low-flow showerhead for maximum savings—most rental showerheads are easy to unscrew and swap back before moving out.
7. Smart Recycling Trackers: Level Up Your Waste Game
Why Track Recycling?
Proper recycling saves resources, but rules can be confusing and waste often goes to landfill. Smart recycling trackers (often in the form of connected bins or scanning apps) make sorting and reporting painless.
Top Features
- Scan barcodes to check if items are recyclable locally
- Smart lids or sensors measure recycling volume or send reminders
- Most use stick-on sensors or fit easily inside existing bins
- Apps provide tips, sorting guidance, and even rewards
