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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-12-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001822250</issuerCik>
        <issuerName>ContextLogic Inc.</issuerName>
        <issuerTradingSymbol>WISH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001835718</rptOwnerCik>
            <rptOwnerName>Formation8 GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4962 EL CAMINO REAL, SUITE 212</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ALTOS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001622187</rptOwnerCik>
            <rptOwnerName>F8 StarLight SPV, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4962 EL CAMINO REAL, SUITE 212</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ALTOS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001632615</rptOwnerCik>
            <rptOwnerName>F8 StarLight II SPV, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4962 EL CAMINO REAL, SUITE 212</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ALTOS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001543731</rptOwnerCik>
            <rptOwnerName>Formation8 Partners Fund I, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4962 EL CAMINO REAL, SUITE 212</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ALTOS</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Series A Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>22248650</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series B Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>15053440</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series C Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8559310</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series D Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>599940</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series E Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>40480</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series F Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>39280</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series D Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5399550</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series E Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1579080</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Series B Preferred Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0001</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-08-01</value>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F5"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>9866400</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5800630</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The Series A Preferred Stock, Series B Preferred Stock, Series C Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, and Series F Preferred Stock (collectively, the &quot;Preferred Stock&quot;) shall automatically convert into shares of the Issuer's Class A common stock, par value $0.0001 per share (the &quot;Class A Common Stock&quot;), on a one-for-one basis, immediately prior to the completion of the Issuer's initial public offering. The Preferred Stock has no expiration date.</footnote>
        <footnote id="F2">The shares are held of record directly by Formation8 Partners Fund I, L.P. (&quot;F8 LP&quot;).  Formation8 GP, LLC (&quot;F8 GP&quot;) is the general partner of F8 LP.  James Kim, Brian Koo and Joe Lonsdale, a member of the Issuer's board of directors, are the managing members of F8 GP and may be deemed to have shared voting and dispositive power with respect to the shares held by F8 LP.  Each of F8 GP and its managing members disclaims beneficial ownership of the securities held by F8 LP and this report shall not be deemed an admission that F8 GP or its managing members is the beneficial owner of these securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interests therein.</footnote>
        <footnote id="F3">The shares are held of record directly by F8 Starlight SPV, L.P. (&quot;F8 Starlight&quot;).  F8 GP is the general partner of F8 Starlight. James Kim, Brian Koo and Joe Lonsdale, a member of the Issuer's board of directors, are the managing members of F8 GP and may be deemed to have shared voting and dispositive power with respect to the shares held by F8 Starlight.  Each of F8 GP and its managing members disclaims beneficial ownership of the securities held by F8 Starlight and this report shall not be deemed an admission that F8 GP or its managing members is the beneficial owner of these securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interests therein.</footnote>
        <footnote id="F4">The shares are held of record directly by F8 Starlight II SPV, L.P. (&quot;F8 Starlight II&quot;).  F8 GP is the general partner of F8 Starlight II.  James Kim, Brian Koo and Joe Lonsdale, a member of the Issuer's board of directors, are the managing members of F8 GP and may be deemed to have shared voting and dispositive power with respect to the shares held by F8 Starlight II. Each of F8 GP and its managing members disclaims beneficial ownership of the securities held by F8 Starlight II and this report shall not be deemed an admission that F8 GP or its managing members is the beneficial owner of these securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interests therein.</footnote>
        <footnote id="F5">This Warrant shall only be exercisable one day prior to the earliest to occur of (a) the consummation of the Issuer's sale of its common stock or other securities in the Issuer's first underwritten public offering pursuant to an effective registration statement under the Securities Act of 1933, as amended (the &quot;Initial Public Offering&quot;), and (b) the consummation of a Liquidation Event, as such term is defined in the Issuer's Amended and Restated Certificate of Incorporation on file with the Secretary of State of the State of Delaware.  Notwithstanding the above, if the holder has not exercised this Warrant prior to the Initial Public Offering, this Warrant shall automatically be deemed to be exercised in full on a net basis.</footnote>
        <footnote id="F6">The shares underlying this warrant are held of record directly by F8 LP.  F8 GP is the general partner of F8 LP. James Kim, Brian Koo and Joe Lonsdale, a member of the Issuer's board of directors, are the managing members of F8 GP and may be deemed to have shared voting and dispositive power with respect to the shares held by F8 LP. Each of F8 GP and its managing members disclaims beneficial ownership of the securities held by F8 LP and this report shall not be deemed an admission that F8 GP or its managing members is the beneficial owner of these securities for purposes of Section 16 or for any other purpose, except to the extent of their pecuniary interests therein.</footnote>
        <footnote id="F7">All shares of Class B common stock will automatically convert, on a one-for-one basis, into shares of Class A Common Stock on the earliest of (i) any transfer of the Class B common stock by the holder, whether or not for value, subject to certain exceptions, (ii) the 7-year anniversary of the closing date of the Issuer's Initial Public Offering, (iii) the date on which the number of outstanding shares of Class B common stock represents less than 5% of the aggregate combined number of outstanding shares of Class A Common Stock and Class B common stock, (iv) the date specified by a vote of the holders of a majority of the then outstanding shares of Class B common stock, or (v) a date that is between 90 and 270 days, as determined by the Issuer's board of directors, after the death or permanent incapacity of the Issuer's founder, CEO, and Chairperson.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Joe Lonsdale, as a Managing Member of Formation8 GP, LLC</signatureName>
        <signatureDate>2020-12-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Joe Lonsdale, as a Managing Member of Formation8 GP, LLC, the General Partner of F8 Starlight SPV, L.P.</signatureName>
        <signatureDate>2020-12-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Joe Lonsdale, as a Managing Member of Formation8 GP, LLC, the General Partner of F8 Starlight II SPV, L.P.</signatureName>
        <signatureDate>2020-12-15</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Joe Lonsdale, as a Managing Member of Formation8 GP, LLC, the General Partner of Formation8 Partners Fund I, L.P.</signatureName>
        <signatureDate>2020-12-15</signatureDate>
    </ownerSignature>
</ownershipDocument>
