The latest smart locks have emerged, offering improved features and connectivity options. Some models, such as the Schlage Encode Plus, use Thread and Wi-Fi for connectivity. However, Wi-Fi tends to drain batteries faster than Thread, so it's recommended to avoid activating Wi-Fi if possible. Many smart locks also come with exterior power options, like USB-C ports or 9-volt batteries, to charge them in case of low battery.

Some locks feature auto-unlock capabilities using GPS, Bluetooth, and Wi-Fi to automatically unlock doors as users approach. However, this requires keeping the lock manufacturer's app open on the phone. Additionally, Matter is a new standard designed to enhance smart home interoperability and future-proofing, allowing locks to work seamlessly with various platforms.

Source: https://www.theverge.com/23393163/best-smart-door-lock