Smart home electronics can solve very different problems, so the first decision is not simply which item costs less. A smart door lock, a wireless dimmer kit, and a DIY smart home module set all belong in the same broad category, but they fit different projects. If you want keypad entry at a door, the lock options matter most. If the goal is lighting control without adding a traditional wall switch, the wireless receiver kit is the focused pick. If you want to experiment with automation ideas, the LittleBits kit is the outlier worth considering.
Quick take
- Best for Bluetooth keypad door access: Yale Assure Lock 2; Smart Door Lock w/Bluetooth & Pushbutton Keypad; Black Suede. It combines Bluetooth, a pushbutton keypad, a modern black finish, and residential deadbolt details.
- Best for a lower-priced keypad deadbolt: ARPHA Keyless Smart Door Lock Electronic Anti Peeping Keypad Deadbolt Auto Lock. It emphasizes one-touch lock, anti-peeping password, user codes, and universal/reversible door handing.
- Best for learning and making: LittleBits Smart Home Kit 14 Bits Modules DIY IFTTT Ready Smart Solution STEM. It is the only kit here centered on modules, STEM projects, and IFTTT compatibility.
- Best for lighting control: Smart Wireless Light Switch and Receiver Kit Dimming No wiring Work Alexa. It focuses on wireless dimming, a receiver kit, and Amazon Alexa compatibility.
Listed price comparison
| Product | Listed price | Price bar |
|---|---|---|
| Yale Assure Lock 2; Smart Door Lock w/Bluetooth & Pushbutton Keypad; Black Suede | USD 66.73 | |
| ARPHA Keyless Smart Door Lock Electronic Anti Peeping Keypad Deadbolt Auto Lock | USD 22.99 | |
| LittleBits Smart Home Kit 14 Bits Modules DIY IFTTT Ready Smart Solution STEM | USD 41.21 | |
| Smart Wireless Light Switch and Receiver Kit Dimming No wiring Work Alexa | USD 14.97 |
The spread runs from USD 14.97 to USD 66.73, with the lowest listed price 78% below the highest. That gap is partly because these are not four versions of the same device. The Yale and ARPHA products are both door locks, the Nexete item is a light switch and receiver kit, and the LittleBits item is a 14-module DIY kit.
Decision matrix
Choose a smart door lock if the project is entry control. The Yale and ARPHA models are the two clear matches. Yale leans into Bluetooth, a pushbutton keypad, Apple HomeKit and Homey compatibility, and residential front door, side entrance, and backdoor use. ARPHA leans into keypad functions such as anti-peeping password, automatic relocking, one-touch lock, low battery indicator light, and 100 user codes.
Choose the wireless dimmer kit if the project is lighting. The Nexete kit is built around light control, a dimmer operation method, wireless features, a receiver kit, and Amazon Alexa compatibility. It is not positioned as a door access device or a DIY learning set.
Choose the LittleBits kit if the project is experimentation. The LittleBits Smart Home Kit is for building custom projects with magnetic snap-together modules. It is the only option here that directly mentions 14 Bits modules, STEM, IFTTT, and DIY smart solutions.
Pay attention to condition. Yale, ARPHA, and Nexete are listed as open box. LittleBits is listed as used. That does not make one automatically better than another, but it is a meaningful distinction when choosing between a home access item, an electronics kit, and a lighting control component.
Concise product notes
Yale Assure Lock 2; Smart Door Lock w/Bluetooth & Pushbutton Keypad; Black Suede
The Yale Assure Lock 2 is the most complete door-lock-oriented choice in this set for someone who wants Bluetooth plus a pushbutton keypad in a black residential deadbolt. It also mentions Apple HomeKit and Homey compatibility, included hardware, instructions, and a key, which makes it more specific than a keypad-only title. The limitation is cost and scope: it is the highest-priced item in the comparison, and its smart access centers on Bluetooth rather than the broader Alexa wording seen on the lighting kit. Its condition is also open box, which may matter to shoppers comparing it with a used DIY kit or another open-box lock.
ARPHA Keyless Smart Door Lock Electronic Anti Peeping Keypad Deadbolt Auto Lock
ARPHA is the more feature-dense keypad deadbolt choice for shoppers focused on code entry. The title and attributes call out anti-peeping keypad use, auto lock, one-touch lock, automatic relocking, a low battery indicator light, 100 user codes, and universal/reversible door handing. It also includes backup key wording and Type-C temporary emergency power supply wording in the product description. The tradeoff is that its smart home ecosystem wording is not as broad as Yale's Apple HomeKit and Homey language, and it is also listed as open box. Choose it when keypad functions matter more than a named smart-home platform.
LittleBits Smart Home Kit 14 Bits Modules DIY IFTTT Ready Smart Solution STEM
The LittleBits kit is the best fit here for a maker, student, hobbyist, or household experimenting with smart home ideas rather than replacing a lock or switch. It includes 14 Bits modules and accessories, uses magnetic snap-together modules, and is IFTTT ready for connecting physical builds with digital services. Project examples in the product wording include ideas like an automated pet feeder, smart fridge alarm, or remote-controlled lamp. Its limitation is that it is listed as used, and it is not a finished door lock or lighting control installation by itself. Pick it for learning and prototyping, not for a single-purpose access upgrade.
Smart Wireless Light Switch and Receiver Kit Dimming No wiring Work Alexa
The Nexete smart wireless light switch and receiver kit is the focused lighting pick. Its title and attributes point to wireless light control, dimming, a light switch port type, a dimmer radio module, and Amazon Alexa compatibility. The product wording also mentions a mini remote control, wall plate, receiver, and adjustable brightness, so it is aimed at controlling lights rather than managing door entry. The limitation is equally clear: it is not a lock, keypad, or DIY module bundle, and its smart home compatibility is framed around Amazon Alexa. Its condition is open box, and shoppers comparing it with the LittleBits kit should note that this is a specific lighting-control device, not a broad STEM set.
Final recommendation
For most shoppers comparing these four smart home electronics, start with the project type. If the project is a door, narrow the choice to the two keypad deadbolts. The Yale Assure Lock 2; Smart Door Lock w/Bluetooth & Pushbutton Keypad; Black Suede is the stronger match when Bluetooth, pushbutton keypad access, residential deadbolt wording, Apple HomeKit, and Homey compatibility are priorities. The ARPHA Keyless Smart Door Lock Electronic Anti Peeping Keypad Deadbolt Auto Lock is the practical alternative when the standout appeal is anti-peeping password entry, one-touch lock, automatic relocking, and 100 user codes.
If the project is lighting rather than entry access, the Smart Wireless Light Switch and Receiver Kit Dimming No wiring Work Alexa is the cleanest fit because the title and attributes center on wireless dimming, light control, and Amazon Alexa. It is also the lowest-priced item in the group at USD 14.97.
If the project is learning, tinkering, or building connected experiments, the LittleBits Smart Home Kit 14 Bits Modules DIY IFTTT Ready Smart Solution STEM is the most relevant choice. Its 14 Bits modules, magnetic module type, DIY project focus, STEM wording, and IFTTT compatibility make it meaningfully different from both locks and the dimmer kit.
Overall, the Yale lock is the most complete door-access option, ARPHA is the lower-priced keypad deadbolt, Nexete is the lighting-control choice, and LittleBits is the DIY automation kit. The right buy depends less on the category label and more on whether you are upgrading an entry point, controlling lights, or building smart home experiments.