0000320351 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member rr:RiskLoseMoneyMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member rr:RiskNondiversifiedStatusMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member rr:RiskNotInsuredDepositoryInstitutionMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:ForeignExposureMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:IssuerSpecificChangesMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:StockMarketVolatilityMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:UtilitiesIndustryConcentrationMember 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:C000121123Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:ReturnBeforeTaxesMember fmr:C000121123Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member rr:AfterTaxesOnDistributionsMember fmr:C000121123Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member rr:AfterTaxesOnDistributionsAndSalesMember fmr:C000121123Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:IndexRS018Member 2025-04-01 2025-04-01 0000320351 fmr:FidelityTelecomandUtilitiesFund-RetailPROMember fmr:S000039312Member fmr:IndexSP001Member 2025-04-01 2025-04-01 iso4217:USD pure shares 485BPOS 2025-01-31 false 0000320351 N-1A Fidelity Select Portfolios Fund Summary Fund: Fidelity® Telecom and Utilities Fund Investment Objective Fidelity® Telecom and Utilities Fund seeks high total return through a combination of current income and capital appreciation. Fee Table The following table describes the fees and expenses that may be incurred when you buy, hold, and sell shares of the fund. You may pay other fees, such as brokerage commissions , which are not reflected in the tables and examples below. Shareholder fees 0 Annual Operating Expenses 0.0070 0 0.0003 0.0073 Adjusted to reflect current fees. This example helps compare the cost of investing in the fund with the cost of investing in other funds. Let's say, hypothetically, that the annual return for shares of the fund is 5% and that the fees and the annual operating expenses for shares of the fund are exactly as described in the fee table. This example illustrates the effect of fees and expenses, but is not meant to suggest actual or expected fees and expenses or returns, all of which may vary. For every $10,000 you invested, here's how much you would pay in total expenses if you sell all of your shares at the end of each time period indicated: 75 233 406 906 Portfolio Turnover The fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual operating expenses or in the example, affect the fund's performance. During the most recent fiscal year, the fund's portfolio turnover rate was 55 % of the average value of its portfolio. 0.55 Principal Investment Strategies Normally investing primarily in common stocks. Normally investing at least 80% of assets in securities of telecommunications services companies and utility companies. Telecommunications services companies and utility companies may include companies that are principally engaged in providing electricity, gas, water, cable television, radio, telecommunications services, or sanitary services to the public. Fidelity may consider a company to be principally engaged in the designated business activity or activities based on: (i) the level of a company's assets, income, sales, or profits that are committed to, derived from, or related to the designated business activity or activities, or (ii) whether a third party has given the company an industry or sector classification consistent with the designated business activity or activities. Whether a company is principally engaged in the designated business activity or activities can be determined under any of these factors. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Investing in domestic and foreign issuers. Using fundamental analysis of factors such as each issuer's financial condition and industry position, as well as market and economic conditions, to select investments. Normally investing at least 80% of assets in securities of telecommunications services companies and utility companies. Principal Investment Risks Stock Market Volatility. Stock markets are volatile and can decline significantly in response to adverse issuer, political, regulatory, market, or economic developments. Different parts of the market, including different market sectors, and different types of securities can react differently to these developments. Foreign Exposure. Foreign markets can be more volatile than the U.S. market due to increased risks of adverse issuer, political, regulatory, market, or economic developments and can perform differently from the U.S. market. Utilities Industry Concentration. The utilities industries can be significantly affected by government regulation, interest rate changes, financing difficulties, supply and demand of services or fuel, intense competition, natural resource conservation, and commodity price fluctuations. Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole. In addition, the fund is classified as non-diversified under the Investment Company Act of 1940 (1940 Act), which means that it has the ability to invest a greater portion of assets in securities of a smaller number of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in share price than would occur in a more diversified fund. An investment in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency .   You could lose money by investing in the fund. Performance The following information is intended to help you understand the risks of investing in the fund. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. The additional index has characteristics relevant to the fund's investment strategies. Index descriptions appear in the "Additional Index Information" section of the prospectus. Past performance (before and after taxes) is not an indication of future performance. Visit www.fidelity.com for more recent performance information. The information illustrates the changes in the performance of the fund's shares from year to year and compares the performance of the fund's shares to the performance of a securities market index and an additional index over various periods of time. Past performance (before and after taxes) is not an indication of future performance. www.fidelity.com Year-by-Year Returns -0.0553 0.1703 0.1198 0.0332 0.2202 0.0210 0.0720 0.0501 0.0338 0.3029    Highest Quarter Return 0.1700 2024-09-30    Lowest Quarter Return -0.1707 2020-03-31 Average Annual Returns After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. Actual after-tax returns may differ depending on your individual circumstances. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. After-tax returns are calculated using the historical highest individual federal marginal income tax rates, but do not reflect the impact of state or local taxes. The after-tax returns shown are not relevant if you hold your shares in a retirement account or in another tax-deferred arrangement, such as an employee benefit plan (profit sharing, 401(k), or 403(b) plan). Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of fund shares. Return Before Taxes 0.3029 0.0914 0.0923 Return After Taxes on Distributions 0.2822 0.0773 0.0776 Return After Taxes on Distributions and Sale of Fund Shares 0.1921 0.0694 0.0713 Russell 3000® Telecom and Utilities Select Index 0.2480 0.0452 0.0704 S&P 500® Index 0.2502 0.1453 0.1310 A Adjusted to reflect current fees. B The management fee comprises a basic fee, which may vary by class, that is adjusted up or down (subject to a maximum rate) based on the performance of the fund or a designated class of the fund relative to that of the Russell 3000® Telecom and Utilities Select Index. The basic fee covers administrative services previously provided under separate services agreements with the fund, for which 0.18% was previously charged under the services agreements. Please see "Fund Services - Fund Management - Advisory Fee(s)" for additional information.