497 1 main.htm

SUPPLEMENT TO THE

FIDELITY® UTILITIES FUND

A Fund of Fidelity Devonshire Street Trust

STATEMENT OF ADDITIONAL INFORMATION

March 31, 2005

The following information replaces similar information found in the "Trustees and Officers" section beginning on page 15.

Kenneth B. Robins (35)

Year of Election or Appointment: 2005

Deputy Treasurer of Utilities. Mr. Robins also serves as Deputy Treasurer of other Fidelity funds (2005-present) and is an employee of FMR (2004-present). Before joining Fidelity Investments, Mr. Robins worked at KPMG LLP, where he was a partner in KPMG's department of professional practice (2002-2004) and a Senior Manager (1999-2000). In addition, Mr. Robins served as Assistant Chief Accountant, United States Securities and Exchange Commission (2000-2002).

<R>Douglas Simmons has replaced Andrew Burzumato as the portfolio manager of the fund. The following information replaces the similar information found in the "Management Contract" section beginning on page 28.</R>

<R>Douglas Simmons is a research analyst and is the portfolio manager of the fund and receives compensation for his services as a research analyst and as a portfolio manager under a single compensation plan. Research analysts who also manage a sector fund, such as the fund, are referred to as sector fund managers. As of October 31, 2005, the sector fund manager's compensation generally consists of a fixed base salary determined periodically (typically annually), a bonus and, in certain cases, participation in several types of equity-based compensation plans. A portion of the sector fund manager's compensation may be deferred based on criteria established by FMR or at the election of the sector fund manager.</R>

<R>The sector fund manager's base salary is determined primarily by level of responsibility and performance as a research analyst and sector fund manager at FMR or its affiliates. The sector fund manager's bonus is based on several components over a one-year period for research performance, and over a one-year period (and, if longer than one year, an additional period relating to tenure on the fund) for fund performance. A substantial portion of his bonus for the fund relates to his performance as a research analyst and is based on portfolio manager survey-based ratings that relate to analytical work and investment results within the relevant sector(s) and impact on other equity funds and accounts as a research analyst. Additional components of his bonus are based on the Director of Research's assessment of the research analyst's performance and may include factors such as measurement of the analyst's stock recommendations; the pre-tax investment performance of the fund relative to the Russell 3000 Utilities Index and the pre-tax performance investment performance of the fund relative to sector peer groups of funds, if applicable; and the research analyst's contributions to the research groups and to FMR. Another component of the bonus is based upon the investment performance of a broad range of FMR equity funds and accounts. The sector fund manager also is compensated under equity-based compensation plans linked to increases or decreases in the net asset value of the stock of FMR Corp., FMR's parent company. FMR Corp. is a diverse financial services company engaged in various activities that include fund management, brokerage, retirement, and employer administrative services.</R>

<R>The sector fund manager's compensation plan may give rise to potential conflicts of interest. Although investors in the fund may invest through either tax-deferred accounts or taxable accounts, the sector fund manager's compensation is linked to the pre-tax performance of the fund, rather than its after-tax performance. The sector fund manager's base pay and bonus opportunity tend to increase with additional and more complex research responsibilities. The management of multiple funds and accounts (including proprietary accounts) may give rise to potential conflicts of interest if the funds and accounts have different objectives, benchmarks, time horizons, and fees as the sector fund manager must allocate his time and investment ideas across multiple funds and accounts. In addition, the fund's trade allocation policies and procedures may give rise to conflicts of interest if the fund's orders do not get fully executed due to being aggregated with those of other accounts managed by FMR. The sector fund manager may execute transactions for another fund or account that may adversely impact the value of securities held by the fund. Securities selected for funds or accounts other than the fund may outperform the securities selected for the fund. Personal accounts may give rise to potential conflicts of interest; trading in personal accounts is restricted by the fund's Code of Ethics. Furthermore, the potential exists that the sector fund manager's responsibilities as a portfolio manager of a sector fund may not be entirely consistent with his responsibilities as a research analyst providing recommendations to other Fidelity portfolio managers.</R>

<R>UIFB-06-01 February 10, 2006
1.712214.111</R>

<R>The following table provides information relating to other accounts managed by Mr. Simmons as of October 31, 2005:</R>

<R>Registered
Investment
Companies</R>

<R>Other
Pooled
Investment
Vehicles</R>

<R>Other Accounts</R>

<R>Number of Accounts Managed</R>

<R>2</R>

<R>none</R>

<R>none</R>

<R>Number of Accounts Managed with Performance-Based Advisory Fees</R>

<R>1</R>

<R>none</R>

<R>none</R>

<R>Assets Managed (in millions)</R>

<R>$ 1,058</R>

<R>none</R>

<R>none</R>

<R>Assets Managed with Performance-Based Advisory Fees (in millions)</R>

<R>$ 1,040</R>

<R>none</R>

<R>none</R>

<R>* Includes Utilities ($1,040 (in millions) assets managed with performance-based advisory fee).</R>

<R>As of October 31, 2005, the dollar range of shares of Utilities beneficially owned by Mr. Simmons was none.</R>

The following information replaces similar information found in the "Distribution Services" section beginning on page 35.

The fund has entered into a distribution agreement with FDC, an affiliate of FMR. The principal business address of FDC is 82 Devonshire Street, Boston, Massachusetts 02109. FDC is a broker-dealer registered under the Securities Exchange Act of 1934 and a member of the National Association of Securities Dealers, Inc. The distribution agreement calls for FDC to use all reasonable efforts, consistent with its other business, to secure purchasers for shares of the fund, which are continuously offered at NAV. Promotional and administrative expenses in connection with the offer and sale of shares are paid by FMR.

The Trustees have approved a Distribution and Service Plan on behalf of the fund (the Plan) pursuant to Rule 12b-1 under the 1940 Act (the Rule). The Plan, as approved by the Trustees, allows the fund and FMR to incur certain expenses that might be considered to constitute indirect payment by the fund of distribution expenses.

Under the Plan, if the payment of management fees by the fund to FMR is deemed to be indirect financing by the fund of the distribution of its shares, such payment is authorized by the Plan. The Plan specifically recognizes that FMR may use its management fee revenue, as well as its past profits or its other resources, to pay FDC for expenses incurred in connection with providing services intended to result in the sale of fund shares and/or shareholder support services. In addition, the Plan provides that FMR, directly or through FDC, may pay significant amounts to intermediaries, including retirement plan sponsors, service-providers and administrators, that provide those services. Currently, the Board of Trustees has authorized such payments for Utilities shares.

Prior to approving the Plan, the Trustees carefully considered all pertinent factors relating to the implementation of the Plan, and determined that there is a reasonable likelihood that the Plan will benefit the fund and its shareholders. In particular, the Trustees noted that the Plan does not authorize payments by the fund other than those made to FMR under its management contract with the fund. To the extent that the Plan gives FMR and FDC greater flexibility in connection with the distribution of fund shares, additional sales of fund shares or stabilization of cash flows may result. Furthermore, certain shareholder support services may be provided more effectively under the Plan by local entities with whom shareholders have other relationships.

FDC or an affiliate may compensate, or upon direction make payments for certain retirement plan expenses to, intermediaries, including retirement plan sponsors, service-providers and administrators. A number of factors are considered in determining whether to pay these additional amounts. Such factors may include, without limitation, the level or type of services provided by the intermediary, the level or expected level of assets or sales of shares, and other factors. In addition to such payments, FDC or an affiliate may offer other incentives such as sponsorship of educational or client seminars relating to current products and issues, payments or reimbursements for travel and related expenses associated with due diligence trips that an intermediary may undertake in order to explore possible business relationships with affiliates of FDC, and/or payments of costs and expenses associated with attendance at seminars, including travel, lodging, entertainment and meals. Certain of the payments described above may be significant to an intermediary. As permitted by SEC and the National Association of Securities Dealers rules, FDC or any affiliate may pay or allow other incentives or payments to intermediaries.

The fund's transfer agent or an affiliate may also make payments and reimbursements to certain intermediaries, including retirement plan sponsors, service providers and administrators, for providing recordkeeping and administrative services to plan participants or for providing other services to retirement plans. Please see "Transfer and Service Agent Agreements" in this SAI for more information.

FDC or an affiliate may also make payments to banks, broker-dealers and other service providers for distribution-related activities and/or shareholder services. If you have purchased shares of the fund through an investment professional, please speak with your investment professional to learn more about any payments his or her firm may receive from FMR, FDC and/or their affiliates, as well as fees and/or commissions the investment professional charges. You should also consult disclosures made by your investment professional at the time of purchase.

Any of the payments described in this section may represent a premium over payments made by other fund families. Investment professionals may have an added incentive to recommend a fund over others offered by competing fund families, or retirement plan sponsors may take these payments into account when deciding whether to include a fund as a plan investment option.

The following information supplements that found in the "Transfer and Service Agent Agreements" section beginning on page 35.

Many fund shares are owned by certain intermediaries for the benefit of their customers. Since the funds often do not maintain an account for shareholders in those instances, some or all of the recordkeeping services for these accounts may be performed by third parties. FSC or an affiliate may make payments to intermediaries for recordkeeping and other services.

Retirement plans may also hold fund shares in the name of the plan or its trustee, rather than the plan participant. In situations where FSC or an affiliate does not provide recordkeeping services to a retirement plan, plan recordkeepers, who may have affiliated financial intermediaries who sell shares of the funds, may, upon direction, be paid for providing recordkeeping services to plan participants. Payments may also be made, upon direction, for other plan expenses.

In certain situations where FSC or an affiliate provides recordkeeping services to a retirement plan, payments may be made to pay for plan expenses. The amount of such payments may be based on investments in particular Fidelity funds, or may be fixed for a given period of time. Upon direction, payments may be made to plan sponsors, or at the direction of plan sponsors, third parties, for expenses incurred in connection with the plan.