August vs Schlage Smart Door Sensor

August Wi-Fi Smart Lock (4th Gen) vs Schlage Encode Plus: Which Smart Door Sensor is Right for You?

Both August and Schlage offer smart door sensors, but they approach the problem differently. August sells a separate door sensor that works with its smart lock to detect open/close status, while Schlage integrates basic tamper sensing into its lock body. We compared owner reviews from Amazon, Best Buy, and Home Depot to break down the real-world differences.

What to Check Before Buying a Smart Door Sensor

Before choosing between August and Schlage, consider these three factors. First, your door type: August's sensor works on most standard doors, but Schlage's lock requires a specific backset. Second, your smart home hub: if you use Z-Wave, Schlage is the better choice. Third, installation complexity: August is renter-friendly, while Schlage is a permanent upgrade.

Mistakes to Avoid When Choosing a Smart Lock with Sensors

Many buyers assume all smart locks include a door sensor. August and Schlage both offer sensor functionality, but August's sensor is a separate purchase (around $25) that attaches to the door frame. Schlage's lock has a built-in tamper sensor but does not detect open/close status. If you need true open/close detection, you must buy the August Door Sensor separately or choose a third-party sensor compatible with your hub.

August Wi-Fi Smart Lock (4th Gen) Overview

The August Wi-Fi Smart Lock (4th Gen) is designed for people who want to keep their existing deadbolt. It retrofits over your current lock, allowing you to use your original key. The lock connects via Wi-Fi, Bluetooth, and Z-Wave (with a hub). Owner reviews on Amazon give it 4.2 out of 5 stars, with praise for easy installation and the DoorSense feature that tells you if the door is open or closed.

However, some users report connectivity issues with Wi-Fi, especially in apartments with thick walls. The battery life is shorter than Schlage, averaging 3-4 months. The August Door Sensor is sold separately, which adds to the overall cost. For renters or those who cannot change their lock, this is the best option.

Schlage Encode Plus Overview

The Schlage Encode Plus is a complete smart lock replacement with a built-in keypad and Z-Wave Plus connectivity. It scores 4.5 out of 5 stars on Amazon, with owners loving the robust build quality and long battery life. The lock includes a tamper sensor that alerts you if someone tries to force the lock, but it does not detect if the door is open or closed.

Installation takes longer than August because you must replace the entire deadbolt. The lock is heavier and more durable, making it ideal for front doors. Schlage's app is reliable, and the lock works with all major voice assistants. If you want a traditional keypad and don't need open/close detection, this is the better choice.

Key Differences: Door Sensor Functionality

The biggest difference between August and Schlage is the door sensor. August offers the August Door Sensor (sold separately) that attaches to the door frame and magnetically detects open/close status. This works seamlessly with the August app and automations (e.g., auto-lock when you leave). Schlage does not offer a separate door sensor; its lock only has a tamper sensor that triggers an alarm if the lock is physically moved.

If you need to know whether your door is open or closed, August is the clear winner. If you only care about lock status and security alerts, Schlage is sufficient.

Ecosystem and Smart Home Integration

August works best with Alexa and Google Assistant, and it integrates with Airbnb for easy guest access. Schlage Encode Plus supports Apple Home Key, allowing you to unlock with your iPhone or Apple Watch. Schlage also has better Z-Wave support, making it ideal for users with a SmartThings or Hubitat hub. Both brands work with Ring, but August has deeper integration with Ring Alarm.

Build Quality and Warranty

Schlage is known for its heavy-duty construction, with a solid metal body and a Grade 1 or 2 rating. August uses more plastic components, which some owners find less durable. Schlage offers a limited lifetime warranty on mechanical parts and a 3-year warranty on electronics. August offers a 1-year warranty. If long-term durability is a priority, Schlage wins.

Battery Life and Power

Schlage Encode Plus uses 4 AA batteries and lasts 6-12 months, depending on usage. August Wi-Fi Smart Lock also uses 4 AA batteries but lasts only 3-6 months because it uses Wi-Fi for constant connectivity. Both locks alert you when batteries are low. Schlage's longer battery life is a significant advantage for users who do not want to change batteries frequently.