Mobile Device Requirement for Collector for ArcGIS

[LixinHuang]

Is there any requirement for mobile device for Collector for ArcGIS App for Android iOS and Windows? Is there a list of preferred brand? 

[Kylie · Accepted solution]

The device requirements for Collector can be found here: What are the requirements?—Collector for ArcGIS | ArcGIS 

There isn't a list of recommended brands.