Hello Amirira,
There is a SAML IDP available with the SAP Identity Management product (license required) but with the SAP Identity Management product you get only the SAML IDP and not the Mobile SSO solution we offer with the SAP Single Sign-On product: SAP Fiori Client - SAP Library
See more details about the Mobile SSO with SAP Single Sign-On product here:
Mobile Single Sign-On for SAP Fiori - Step-by-Step Guide
See also this architectural guide for Fiori, where chapter 5 describes the Mobile SSO with SAP Single Sign-On:
Regards,
Donka Dimitrova