How do i request a latch device? Contact us at [email protected] if you'd like to request your device. While the Latch App is available on many Android devices, the below devices are specifically recommended. Please note, the Latch App requires Android 6 (Marshmallow) and higher:What is latchos and latch manager? A smart building that just works. LatchOS empowers both Latch devices and third-party partner products, delivering centralized device management for building owners in Latch Manager and seamless smart device control for users through the Latch App. Connect every device at a building.How do i unlock my phone with the latch device? Hold the phone within 1” of the Latch device to unlock. You do not need to unlock your phone, but make sure that your device is awake. Open the app and hold your wrist to the Latch device, and it will automatically unlock. You can also scroll down in the app to quickly access your personal doorcodes.