<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001506983</issuerCik>
        <issuerName>Glucotrack, Inc.</issuerName>
        <issuerTradingSymbol>GCTK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001622251</rptOwnerCik>
            <rptOwnerName>Goode Paul</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLUCOTRACK, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>301 RTE. 17 NORTH, SUITE 800</rptOwnerStreet2>
            <rptOwnerCity>RUTHERFORD</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07070</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-03-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>42</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>339</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On October 7, 2022, the reporting person entered into an into Intellectual Property Purchase Agreement (the &quot;IP Purchase Agreement&quot;) with Glucotrack, Inc. (the &quot;Issuer&quot;), pursuant to which the reporting person is entitled to certain specified milestone payments, payable in common stock, par value $0.001 per share, of the Issuer (the &quot;Common Stock&quot;), as set forth in the IP Purchase Agreement. Upon the achievement of the third milestone contemplated by the IP Purchase Agreement, the reporting person was issued 42 shares of Common Stock, pursuant to the terms of the IP Purchase Agreement.</footnote>
    </footnotes>

    <remarks>On May 17, 2024, a 1-for-5 reverse stock split of the Issuer's Common Stock was implemented (the &quot;2024 Reverse Split&quot;). On February 25, 2025, a 1-for-20 reverse stock split of the Common Stock was implemented (the &quot;February 2025 Reverse Split&quot;), and on June 13, 2025, a 1-for-60 reverse stock split of the Common Stock was implemented (the &quot;June 2025 Reverse Stock Split&quot;, and together with the 2024 Reverse Split and the February 2025 Reverse Stock Split, the &quot;Reverse Stock Splits&quot;). All figures presented in this Form 4 reflect the Reverse Stock Splits.</remarks>

    <ownerSignature>
        <signatureName>/s/ Nelson Mullins Riley &amp; Scarborough LLP, Attorney-in-Fact</signatureName>
        <signatureDate>2025-10-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
