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<!-- Created: Wed May 13 23:59:24 UTC 2026 -->
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        <link:definition>995325 - Disclosure - Segment Reporting</link:definition>
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        <link:definition>996023 - Disclosure - Long-Term Debt (Details)</link:definition>
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        <link:definition>996041 - Disclosure - Net Loss Per Share (Details)</link:definition>
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        <link:definition>996044 - Disclosure - Benefit Plan (Details)</link:definition>
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        <link:definition>996045 - Disclosure - Income Taxes (Details)</link:definition>
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        <link:definition>996046 - Disclosure - Segment Reporting - Schedule of Operating Segment (Details)</link:definition>
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        <link:definition>000 - Document - Document And Entity Information</link:definition>
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  <xs:element name="TwoCustomersMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoCustomersMember"/>
  <xs:element name="TwoThousandTwentyFourSecuredConvertibleNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoThousandTwentyFourSecuredConvertibleNotesMember"/>
  <xs:element name="TwoThousandTwentyFourSecuredTermNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoThousandTwentyFourSecuredTermNotesMember"/>
  <xs:element name="TwoThousandTwentyTwoIncentivePlanMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoThousandTwentyTwoIncentivePlanMember"/>
  <xs:element name="TwoVendorsMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoVendorsMember"/>
  <xs:element name="TwoZeroTwoFiveSecuredConvertibleNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoZeroTwoFiveSecuredConvertibleNotesMember"/>
  <xs:element name="TwoZeroTwoFourSecuredConvertibleNotesMember" type="dtr:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_TwoZeroTwoFourSecuredConvertibleNotesMember"/>
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  <xs:element name="DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" id="sbig_DocumentAndEntityInformationAbstract"/>
</xs:schema>
