Samsung SHS 3321 VS. Samsung SHS H635 FMS

This device can connect with your smart-home systems in-order to allow you to remotely control it when inside your home.

Features a magnetic sensor that enables the door to automatically lock after 3-seconds of getting closed in-order to keep your home secure at all times.

Features an auto-polling function that uses an RFID-card to automatically unlock the door so as to facilitate for quick and easy entry.

It is compatible with some wireless external modules like a video-phone, remote wireless module SHS-DARCX01 and certain NFC items.

It is very easy to install on standard 161 prep doors with just a screwdriver and no drilling is required. It also features an easy to install deadbolt that is adjustable between 60mm and 70mm and can be installed on the right or left hand side.

This unit can work with Amazon-Echo via SmartThings or Wink in-order to facilitate for remote voice-control while at home.

This device uses pin-codes and RFID-tags to grant access into the house. In fact, you can use a digital touchscreen numeric keypad to enter a pass codes or use an RFID-card for faster and automated entry.

It is very easy-to-use because it features a digital touchscreen numeric keypad for entering passcodes and an RFID-card for fast unlocking while the auto-lock magnetic sensor automatically locks the door for you.

Installs on standard 161-prep doors that feature a cylindrical lock-prep with a 2-1/8″ hole at 2-3/4″ backset where the door-edge prep is 1-1/8″ x 2-1/4″

It uses 4 AA-Alkaline batteries ''DC-6V'' that can last for approximately 10-months or depending on how often you use this device.

This smart-lock is programmable up to 71 user-access-codes. In fact, it features a digital touchscreen numeric keypad that can be used to enter a pin-codes in-order to facilitate for faster and easy unlocking doors

It features a thermal sensor that will activate an alarm in-case temperature levels reach a certain degree. On top of that, the lock will automatically unlock helping you to escape the fire.

It features a Double-Authentication mode that requires both password and fingerprint/RFID-tag to unlock the door thus making your home more safe and secured.

This device will create 2 random numbers that will appear on the LED-Display before entering pin-codes in-order throw-off on-lookers. Additionally, this unit spreads your fingerprints around the keypad to prevent guessing your passcode.

When your house-door is opened by force, an alarm will sound after realizing that the door wasn't unlocked properly hence making the intruder less likely to stay.

It uses a double-locking feature to prevent the lock from being unlocked from outside even by pin-code. In fact, this feature works along with double-authentication in-order to improve on your home security.

Features an Anti-theft-node that can be set to burglar-proof your home when your family is away. With this feature, an alarm is set off when the lock is operated from the inside which can be a sign of a burglar attempting to make an escape.

If someone makes 5 failed entry attempts, this unit will set-off a warning sound and the lock will stop to operate for 3-minutes.

User-friendly smart-lock equipped with an elegant and durable touchscreen keypad coupled with a keyless digital that blends easily into commercial or residential doors.

It includes a digital LED-touchscreen numeric keypad used for entering passcodes and setting-up other functions. In fact, this device can be programmed up to 71 user-codes and RFID-tags using the LED-Keypad.

This smart-device will make a beep-sound or play specific melody after every unlocking of the door in-order to let you know that the batteries are low.

When the batteries get discharged, you can simply use the 9V battery-backup to power-up this device from the outside panel and then enter access-codes as usual before embarking on changing the inbuilt-batteries.

Comes with a sleek and modern digital touch screen numeric keypad that can be used to enter pass codes and to setup different modes of the smart-lock.