Nuki Smart Lock can pull the latch and is therefore suitable for doors with handle as well as for doors with knob on the outside. In the Nuki app you can configure whether Nuki should only unlock your door or even pull the latch to open the door for you.
Select your existing door fitting during the initial setup of your Smart Lock. To change the settings for your door fitting later, tap on the desired Smart Lock in the Nuki app and enter the lock settings. Then go to "Manage Smart Lock". Here you can find the option "Choose door fitting" to change the setting.