We'll create fresh WordPress site with Gravity Slider Fields installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Gravity Forms does not yet support slider fields. Until that time, this plugin may serve the purpose well.
The plugin adds a new slider field within the advanced field group. Customize your slider with the following set of options.
Native to Gravity Forms
Custom
If value relations have been defined, they will be displayed along with the field label in form entry details and when using merge tags.
In order to play nice with touch devices, Gravity Slider Fields utilizes noUiSlider (developed by Léon Gersen)