Smartwatches / Compare

Garmin Forerunner 165 vs Garmin Forerunner 255

A

Product A: Garmin

Forerunner 165

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B

Product B: Garmin

Forerunner 255

81 of 150 known

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Every value links to where we found it.

Only differences

AGarmin Forerunner 165

BGarmin Forerunner 255

General

6 of 10 differ

Series

Forerunner1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Forerunner1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Product page title is Forerunner 255, running smartwatch, 46 mm.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

010-02863-20, 010-02863-21, 010-02863-30, 010-02863-31, 010-02863-32, 010-02863-33, A04714, AA47141Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Retail SKUs from the maker page. 010-02863-2x is Forerunner 165, 010-02863-3x is Forerunner 165 Music. Hardware ids A04714 and AA4714 come from the EU declarations.4Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%20165_DoC-EU.pdfRead 7 October 2026EU declaration: Model Numbers A04714, Forerunner 165.5Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%20165%20Music_DoC-EU.pdfRead 7 October 2026EU declaration: Model Numbers AA4714, Forerunner 165 Music.

010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US page for the 46 mm watch without music lists part number 010-02641-01 (Tidal Blue, $349.99). The Music toggle on the same page links the music watch to 010-02641-20, so music watches are other models. 255S is the 41 mm size, SKU 010-02641-02.

GTIN / EAN

753759326593, 75375932660912Retailer pageopticsplanet.com/garmin-forerunner-165-43mm-watch.htmlRead 7 October 2026Public List of Orderable Models maps exact -20 Black/Slate Gray to UPC 753759326593 and -21 Mist Gray/Whitestone to UPC 753759326609. Public search-index table readable, direct HTTP 403 respected. Codes stored on matching existing variant rows, no Music identifiers invented.

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

20 February 20242Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/light-up-your-run-with-the-garmin-forerunner-165-series-easy-to-use-gps-running-smartwatches-with-vibrant-amoled-displaysRead 6 October 2026

1 June 20223Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Garmin release dated June 1, 2022.

Status

Available1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026On sale on the NZ, US, GB and DE maker pages on the date accessed.

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Garmin Forerunner 17022Maker product pagegarmin.com/nl-NL/blog/verschillen-forerunner-170-en-forerunner-165Read 23 October 2026Garmin's Dutch blog says the Forerunner 170 is the successor of the Forerunner 165.

Garmin Forerunner 2658Reviewdcrainmaker.com/2023/03/garmin-forerunner-review-amoled.htmlRead 11 October 2026Review: the Forerunner 265 series at first glance seems like an AMOLED version of the Forerunner 255, with several hardware differences. It follows the 255 in the Forerunner line.10Maker product pagegarmin.com/nl-NL/blogRead 23 October 2026Garmin's Dutch blog says the Forerunner 265 is the successor of the Forerunner 255.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$249.992Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/light-up-your-run-with-the-garmin-forerunner-165-series-easy-to-use-gps-running-smartwatches-with-vibrant-amoled-displaysRead 6 October 2026249.99 USD for Forerunner 165, 299.99 USD for Forerunner 165 Music. Suggested retail, excluding tax.

$349.993Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Suggested retail price $349.99 for Forerunner 255 and 255S. Music models are $399.99.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€279.993Press releasegarmin.com/fr-FR/newsroom/serie-forerunner-165-de-garmin-la-nouvelle-montre-gps-de-runningavec-ecran-amoledRead 6 October 2026Prix et disponibilités: Forerunner 165 279,99 EUR, Forerunner 165 Music 329,99 EUR, prix de vente conseillé, disponible dès maintenant.

€349.994Press articlenextpit.de/news/garmin-forerunner-255-und-955-vorgestellt-touchscreen-mehr-akkuRead 11 October 2026nextpit.de, 1 June 2022: the Forerunner 255 costs 349,99 EUR in every size, the Music edition 50 EUR more. German price incl. VAT.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

NZ, GB, US, EU1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Current NZ and GB maker payloads enumerate all six original SKUs. US maker page enumerates standard -20/-21, with US maker 2024 launch proving Music US market. French maker 2024 release establishes EU sale of both editions. These are markets sold, not a claim all variants remain in every current maker storefront.10Maker product pagegarmin.com/en-GB/p/pn/010-02863-20Read 7 October 2026Current GB GarminAppBootstrap lists -20/-21/-30/-31/-32/-33, same exact SKUs as NZ. GB market proved for both editions.11Maker product pagegarmin.com/en-US/p/pn/010-02863-20Read 7 October 2026Current US maker payload lists exact standard -20 and -21. Music US manufacturer URL now 404, historical US market remains proved by original maker launch. No current US Music-stock claim made.

US, DE3Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026US release with US dollar suggested retail prices.4Press articlenextpit.de/news/garmin-forerunner-255-und-955-vorgestellt-touchscreen-mehr-akkuRead 11 October 2026German launch pricing in euros. Documented subset together with the US release.

ColoursiThe maker's own colour names

Black/Slate grey, Mist grey/Whitestone, Turquoise/Aqua, Berry/Lilac1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Maker en-NZ variation names, verbatim. Black/Slate grey and Mist grey/Whitestone exist in both editions. Turquoise/Aqua and Berry/Lilac are Music only.

Tidal Blue1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US store lists Tidal Blue for this model. Other regional colours exist but are not listed on this page.3Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global-running-day-with-the-introduction-of-the-forerunner-255-seriesRead 11 October 2026Release names tidal blue as a new colour.

Segment

Sport2Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/light-up-your-run-with-the-garmin-forerunner-165-series-easy-to-use-gps-running-smartwatches-with-vibrant-amoled-displaysRead 6 October 2026Maker calls it a GPS running smartwatch.

Sport1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin presents it as a running smartwatch.

OS updates promisediYears of explicitly promised OS updates. A security-only support period does not establish an OS-upgrade promise.

Not available

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Security updates untiliExact end date published for security-update support of this model. Do not calculate it from a stated number of years. A security-only period does not promise OS upgrades.

Not available

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Case

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Case sizeiMarketed case-size options. The marketed size can differ from physical case height, such as ceramic editions. Base dimensions describe the smallest base-material case.

43mm1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

46mm1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Case shape

Round1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Maker product photos show a round case with a 30.4 mm diameter round display.

Round1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs describe the display as a diameter and the pictured case is round.

Case materialiMaterial of the housing body, not just the bezel. Use Mixed when the maker describes a mixture of housing/frame materials. Read the published-material field for the parts and proportions.

Not available

Fibre-reinforced polymer6Reviewandroidcentral.com/wearables/garmin-forerunner-255-reviewRead 11 October 2026Review spec box: materials fiber-reinforced polymer. The maker lists only the bezel as fiber-reinforced polymer and no other case material.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: fiber-reinforced polymer bezel and case, silicone strap.

Case material (as published)

Not available

Fiber-reinforced polymer6Reviewandroidcentral.com/wearables/garmin-forerunner-255-reviewRead 11 October 2026Review spec box wording.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table wording.

BackiMaterial of the back of the smallest base-material case. Other materials or regional editions can differ. See source notes.

Not available

Not available

Case dimensionsiPhysical case height, width and thickness. The source note states exclusions such as the heart-rate sensor protrusion.

Height43Width43Thickness11.6mm(1.7 × 1.7 × 0.5 in)1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Physical size 43 x 43 x 11.6 mm. Sensor protrusion is not stated separately.

Height45.6Width45.6Thickness12.9mm(1.8 × 1.8 × 0.5 in)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Physical size 45.6 x 45.6 x 12.9 mm. Not stated whether the heart rate sensor bump is included.

Weight (case only)iWatch body without a strap. An unqualified published weight must not be assumed to exclude the strap.

Not available

Not available

Weight with strapiWatch with the stated strap attached. Strap material and case size belong in the source note. Reviewer measurements belong in measured fields.

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Durability

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Water resistanceiStatic water-pressure rating in atmospheres. It is not a safe swimming or diving depth. Diving limits are listed separately.

5ATM1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Water rating 5 ATM.

5ATM1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Water rating 5 ATM.

Water resistance standard

Not available

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Dust and water rating

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Dive rating

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Max dive depthiMaker-rated depth for the stated diving use, not a conversion from the water-resistance pressure rating.

Not available

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MIL-STD-810iMaker claim that the watch was tested against specified MIL-STD-810 methods. It is not a guarantee for every military-standard test.

Not available

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MIL-STD-810 tests

Not available

Not available

Operating temperatureiPublished operating range. Source notes identify on-wrist limits and other operating conditions. Storage or charging limits are excluded.

Min-20Max60°C9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Printed page 86 Specifications explicitly operating -20 to 60 C. Charging 0 to 45 C is separate and excluded. No narrower on-wrist limit stated.

Min-20Max60°C2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Specifications page 101: operating temperature -20 to 60 C. Charging range 0 to 45 C is excluded.

Display

8 of 14 differ

Display type

OLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

MIP1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Display type sunlight-visible, transflective memory-in-pixel (MIP).

Display type (as published)

AMOLED1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Sunlight-visible, transflective memory-in-pixel (MIP)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Screen sizeiPublished active display diagonal for a rectangular display, or diameter for a round display. Do not calculate it from pixels or display area.

1.2in(3 cm)1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Display size 30.4 mm (1.2") diameter.

1.3in(3.3 cm)1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: 1.3 inch (33 mm) diameter.

Resolution

390 × 390px1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

260 × 260px1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: 260 x 260 pixels.

Pixel densityiPublished pixel density. A rectangular diagonal formula must not be applied to a round display.

Not available

Not available

Display area

Not available

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Touchscreen

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026The manual describes control only with the LIGHT, UP, DOWN, BACK and START/STOP buttons and never mentions touch input.

Max refresh rateiHighest published display refresh rate in active operation.

Not available

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Min refresh rateiLowest published display refresh rate, usually in always-on mode. It is not the active-use minimum unless stated.

Not available

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Peak brightnessiMaker peak-brightness claim. It may apply to a small area or bright ambient light. Full-screen limits and battery/temperature conditions belong in source notes.

Not available

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Minimum brightness

Not available

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Always-on display

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Watch display type: AMOLED (optional always-on mode).

Not available

Display cover

Other glass1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Gorilla Glass1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Display cover (as published)

Chemically strengthened glass1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Lens material: Chemically strengthened glass. No brand is named.

Corning Gorilla Glass 31Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Lens material Corning Gorilla Glass 3. Bezel material is fiber-reinforced polymer. Case material is not listed, so case_material is not stored.

Platform

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Platform

Proprietary1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Garmin's own watch software with Connect IQ apps and Garmin Connect pairing. Not Wear OS or watchOS.

Proprietary1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin watch software with downloadable Connect IQ watch faces, data fields and apps.

OS at launch

Not available

Not available

Software

Not available

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Latest OS

Garmin software 29.0513Maker product pagesupport.garmin.com/en-CARead 7 October 2026Exact Forerunner 165 Latest Software Version Information states Software Version 29.05 August 2026. Current public search-index full article read, live support page is a JS shell. Stable released system software, not a beta or Bluetooth/GNSS component firmware version. Applies series, including Music-specific fixes in history.

Not available

Works with

iOS, Android1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

iOS, Android1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Phone requirement

Current Garmin Connect: iPhone with iOS 18.2 or later, or Android 9 or later with native Google Play Store14Maker product pagesupport.garmin.com/en-SGRead 7 October 2026Garmin Connect App Compatibility Requirements: Apple iOS 18+, Android 9+, native Google Play, Android Go unsupported. Current developer-provided App Store metadata explicitly requires iOS 18.2+. More precise current-app floor retained. Requirement applies current companion-app setup, not an original hardware Bluetooth minimum.15Retailer pageapps.apple.com/us/app/garmin-connect/id583446403Read 7 October 2026Current Garmin-developed App Store listing Compatibility explicitly Requires iOS 18.2 or later, iPhone. This narrows the broader maker policy iOS 18+ for the current app release. No old sideloaded build or unsupported installation assumed.

Not available

App store

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Connect IQ downloadable watch faces, data fields and apps, plus on-device Connect IQ Store.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Connect IQ downloadable watch faces, data fields and apps and an on-device Connect IQ store.

Voice assistants

Not available

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Chipset

Not available

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Process

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CPU cores

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CPU configuration

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Max CPU clock

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GPU

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Low-power coprocessor

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Memory

0 of 2 differ

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

Not available

Not available

StorageiTotal built-in storage the maker states, in decimal GB. Space available to the user is lower and goes in the source note. A figure the maker gives only as available space is not stored.

4GB1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Memory/History 4 GB is listed for both the standard and the Music SKUs. Only the Music edition stores music.

4GB1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Memory/History 4 GB. The manual lists up to 4 GB of music storage for Music models only.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Music storage up to 4 GB applies to Music models.

Health sensors

0 of 8 differ

Heart rate sensor

Garmin Elevate wrist heart rate monitor1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Sensor table: Garmin Elevate wrist heart rate monitor. DC Rainmaker identifies it as Elevate V4.

Garmin Elevate wrist heart rate monitor1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

ECG capabilityiElectrical heart sensing hardware with an ECG capability. The ECG app can require an eligible country, age and paired phone.

No8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026Uses the Elevate V4 sensor, not the Elevate V5 sensor which contains ECG. If you are looking for ECG, look elsewhere.

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: electrical heart rate No, ECG No. The Garmin product page lists no ECG sensor or app.

Blood oxygen sensingiBlood-oxygen sensing capability. App availability and medical status vary by market.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Pulse Ox: Yes (spot-check, during sleep, all day). Not available in all countries per the launch release footnote.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Pulse Ox blood oxygen, spot-check and optional all-day acclimation and in sleep. Not available in all countries.

Skin temperature sensingiA sensor or supported function that measures skin temperature. It is not a core-body thermometer.

No8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026The reviewer would have preferred the Gen 5 sensor to get ECG and wrist temperature, which this watch lacks.

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026The manual describes an internal temperature sensor whose reading is affected by body temperature and offers an external tempe sensor for ambient temperature. No skin temperature function is described.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: skin temperature No. The Garmin page lists only a thermometer.

Blood pressure featureiPublished blood-pressure feature category. Hypertension notifications are not numerical blood-pressure readings.

Not available

Not available

Body composition sensor

Not available

Not available

Skin conductance (EDA)

Not available

Not available

Medical clearancesiNamed regulatory clearances and their jurisdiction. General water resistance or an ECG sensor does not establish medical clearance.

Not available

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Motion and environment sensors

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Accelerometer

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Accelerometer range

Not available

Not available

Gyroscope

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Barometric altimeter

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Sensor table: Barometric altimeter.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Compass

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Ambient light sensor

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: ambient light sensor No. The Garmin sensor list has none.

Depth gauge

Not available

Not available

Depth gauge rangeiPublished measurement range of the depth gauge, distinct from maximum diving depth and water-pressure resistance.

Not available

Not available

Water temperature sensor

Not available

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Health and fitness

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Health featuresiSupported health functions with country, phone and subscription restrictions in the source notes. Upcoming functions are not counted as available.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Heart rate constant, abnormal heart rate alerts (high and low), Pulse Ox, HRV Status, advanced sleep, all-day stress, Women's Health. Sleep stages from the launch release. No Training Readiness.2Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/light-up-your-run-with-the-garmin-forerunner-165-series-easy-to-use-gps-running-smartwatches-with-vibrant-amoled-displaysRead 6 October 2026Sleep score with sleep stages, women's health tracking of the menstrual cycle and pregnancy.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list heart rate every second, high and low abnormal heart rate alerts, Pulse Ox, HRV status, advanced sleep, all-day stress and women's health in Garmin Connect. Sleep stages are in the manual.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Sleep statistics include total hours of sleep, sleep stages and sleep score (page 42 area).

Fitness featuresiSupported workout functions. A sport-profile name alone does not prove advanced metrics such as running power or running dynamics. Trackback follows the recorded route back to the start. A compass arrow that points straight to the start does not count.

VO2 max, Recovery advice, Running dynamics, Running power, Pool swim, Open water swim, Strength rep counting, Interval workouts, Route navigation, Trackback1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026VO2 Max (Run), recovery time, running dynamics (ground contact time but not balance), running power, pool and open-water swim metrics, automatic rep counting, interval training, courses and course guidance, TracBack. No training load or golf.

VO2 max, Training load, Recovery advice, Running dynamics, Running power, Pool swim, Open water swim, Strength rep counting, Interval workouts, Route navigation, Trackback1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list VO2 Max (run), training load, recovery time, running dynamics, running power, pool and open-water swim metrics, automatic rep counting, interval training, course guidance and TracBack. Running dynamics need a pod or HRM-Pro. No golf course or ClimbPro entry.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Page 62: running power can be measured with a compatible running dynamics accessory or the watch sensors. Page 63: Running Dynamics Pod records running dynamics.

Sport profilesiPublished count of distinct sport/activity profiles. A claim such as 180+ is not an exact integer count.

Not available

Not available

Dive modesiActual supported dive modes. Water resistance or a depth app alone does not establish decompression-capable scuba support.

Not available

Not available

External sensorsiTypes of external workout sensors the watch can pair with. GPS reception, phone data and built-in sensors do not qualify.

Heart rate strap, Speed and cadence, Foot pod1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Foot pod capable, speed and cadence sensor support. External heart rate from DC Rainmaker's sensor list. No power meter or smart trainer support per DC Rainmaker.8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026Supports external heart rate, foot pod, speed/cadence and others. Does not support cycling power sensors or smart trainers.

Heart rate strap, Power meter, Speed and cadence, Foot pod, Smart trainer1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list heart rate from external HRM, power meter compatible, speed and cadence sensor support, foot pod capable and smart trainer control.

Safety

0 of 6 differ

Fall detectioniAutomatic fall detection. Incident detection restricted to recorded workouts is not counted as general fall detection.

No17Maker product pagesupport.garmin.com/en-MYRead 7 October 2026Exact current Garmin safety policy states Fall Detection only available on Venu 4 smartwatch. Forerunner 165 manual offers incident detection during selected recorded outdoor activities, which field help explicitly excludes from general fall detection. Both 165 editions lack general fall detection.

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list only incident detection during select activities, which is limited to certain outdoor activities. Not counted as general fall detection.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Page 83: incident detection is a supplemental feature available only for certain outdoor activities.

Car crash detection

Not available

Not available

Emergency SOSiA manual emergency alert to emergency services or preset contacts. Source notes identify the recipient, paired-phone requirement and country limits. Satellite is listed separately.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Assistance and incident detection during select activities. Overview: if you feel unsafe, you can send your live location manually. Needs the paired phone with Garmin Connect.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Assistance. The manual says it sends a message with name, LiveTrack link and GPS location to emergency contacts through a paired phone with data. It does not call emergency services.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Safety and Tracking, page 84: Assistance sends a message with name, LiveTrack link and GPS location to emergency contacts. Paired phone with data plan required.

Emergency sireniPublished or measured siren sound level in decibels. Audible distance alone does not establish this value. Measurement distance belongs in source notes.

Not available

Not available

Live location sharingiShares live location during supported use. A paired phone or data subscription may be required.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Overview lets friends follow your real-time location. Live event sharing is Android only.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list live event sharing (Android only). The manual lists LiveTrack.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Safety and Tracking: LiveTrack lets friends and family follow activities in real time.

Dedicated LED flashlightiA dedicated hardware LED flashlight. Lighting the display white is not counted.

No9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Printed page 30 describes the Flashlight Screen and screen brightness/color. Exact Garmin product comparison LED Flashlight row absent versus 970 Yes. No dedicated hardware LED. White display does not count.

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Controls menu: Flashlight turns on the screen to use the watch as a flashlight. A lit display is not a dedicated LED.7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: LED flashlight No, matching the manual.

Positioning

2 of 3 differ

PositioningiPublished satellite systems and signal bands. Do not infer bands from dual-frequency support alone.

GPS, GLONASS, Galileo1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Sensor table lists GPS, GLONASS and Galileo only. No multi-band row.

GPS, GLONASS, Galileo, QZSS, BeiDou1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list GPS, GLONASS, Galileo, QZSS and BeiDou. Multi-band GPS is listed. Signal bands are not named.

Dual-band GNSSiMaker-stated dual-frequency satellite reception. Supported constellations and signal bands are listed separately.

No8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026Multi-GNSS (but not multiband) GPS. The FR265 has multiband and the FR165 does not.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Multi-band GPS. Battery table calls it All-Systems GNSS plus Multi-Band.

Offline mapsiMap data stored on the watch and usable without live phone data. GPX routes or breadcrumb tracks alone are not offline maps.

No8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026Breadcrumb-style courses only. There are no maps on the unit itself.

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026No map entry in the specs. Only breadcrumb trail, courses and TracBack are listed, which are not offline maps.

Connectivity

4 of 15 differ

BluetoothiPublished Bluetooth support for this model. The version is recorded separately. Unknown version does not mean the radio is absent.

Not available

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Bluetooth version

Not available

Not available

Wi-FiiPublished Wi-Fi support for this model. The standard and bands are recorded separately. Unknown standard does not mean Wi-Fi is absent.

Not available

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Status icons: Wi-Fi technology status for Forerunner music watches only. The spec table lists no Wi-Fi for this model.

Wi-Fi standard

Not available

Not available

Wi-Fi bands

Not available

Not available

CellulariTrue when a cellular edition is sold. A variant row states whether that individual model has cellular hardware.

Not available

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list Connectivity as Bluetooth and ANT+ only. No Wi-Fi and no cellular.

Network

Not available

Not available

4G bandsiPublished LTE bands for the stated regional cellular model. Do not transfer bands to another region or Wi-Fi-only model.

Not available

Not available

5G bandsiPublished 5G NR bands for the stated regional cellular model. RedCap support does not establish conventional full-bandwidth phone 5G.

Not available

Not available

NFCiSome regions sell an NFC edition, so it is per variant.

Yes4Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%20165_DoC-EU.pdfRead 7 October 2026Declares a 13.56 MHz radio at -40.0 dBm max power for A04714. The Garmin compliance pack lists NFC among the radios.

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin Pay contactless payments are listed. NFC itself is not named in the specs.

Contactless payments

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Garmin Pay is listed.

Payment services

Garmin Pay1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Garmin Pay1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Ultra-wideband

Not available

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: UWB No. Garmin lists Bluetooth and ANT+ only.

Satellite

Not available

Not available

ANT+

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Audio

1 of 4 differ

Speaker

No16Retailer pageeuronics.ee/en/phones/watches/sports-watches/010-02863-20/garmin-forerunner-165-black-sports-watchRead 7 October 2026Exact SKU specification table speakers No. Maker standard/Music comparison also lacks Built-in speaker/microphone. Audible status beeper is not a voice/music speaker.20Reviewtomsguide.com/wellness/smartwatches/i-tested-the-coros-pace-4-vs-garmin-forerunner-165-heres-the-winnerRead 7 October 2026Explicit Forerunner 165 family microphone/speaker absence. Status beeper is distinct from a voice/music speaker. No Coros speaker feature transferred.

No7Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: speakers No. Garmin lists no voice calls, speaker or music playback for this non-music model.

Microphones

016Retailer pageeuronics.ee/en/phones/watches/sports-watches/010-02863-20/garmin-forerunner-165-black-sports-watchRead 7 October 2026Exact 010-02863-20 specification table microphone No. Published absence establishes zero onboard microphones. Exact series manual directs speaking through phone and Music playback through external Bluetooth headphones. No mic copied from Venu/970.20Reviewtomsguide.com/wellness/smartwatches/i-tested-the-coros-pace-4-vs-garmin-forerunner-165-heres-the-winnerRead 7 October 2026Original reviewer comparison explicitly covers standard and Music Forerunner 165 options and states the Forerunner 165 has no mic or speaker. Corroborates exact standard SKU retailer absence and shared series manual phone-call path. No Coros microphone inherited.

07Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-255Read 11 October 2026Spec table: microphone No. Garmin lists no voice calls or microphone for this model.

Calls on the watchiVoice-call capability of the marketed model, including sold cellular editions. Variant radio capability and paired-phone requirements still apply.

None9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Receiving an Incoming Phone Call section explicitly says to talk to caller you must use connected phone. Answer/reject button remote control is not watch voice-call audio. Applies standard and Music.

None1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs list text response and reject phone call with text only. No voice call, speaker or microphone entry and no cellular. No voice calls on the watch.

Music on the watchiPlays audio stored on the watch. Remote control of phone playback or streaming alone does not qualify.

Not available

No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Specifications page 101 lists music media storage for Forerunner music watches (Forerunner 255 Music). This model is the non-music watch.

Controls

2 of 5 differ

ButtonsiPhysical controls used to operate the watch, excluding the rotating crown and strap-release buttons. A clickable rotating crown is counted only in Crown.

52Press releasegarmin.com/en-US/newsroom/press-release/sports-fitness/light-up-your-run-with-the-garmin-forerunner-165-series-easy-to-use-gps-running-smartwatches-with-vibrant-amoled-displaysRead 6 October 2026A traditional 5-button design. DC Rainmaker: three buttons on the left, two on the right.

52Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview, page 2: LIGHT, UP, DOWN, BACK and START/STOP.

Named operating buttonsiNames of operating buttons, excluding the crown and strap-release controls.

LIGHT, UP, DOWN, START/STOP, BACK1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Bezel labels printed next to the five buttons in the maker front product photo: LIGHT, UP, DOWN on the left, START/STOP and BACK on the right.

LIGHT, UP, DOWN, BACK, START/STOP2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview page 2. START and STOP share one button.

CrowniA crown that rotates to control the interface. A round push button that does not rotate is not a crown.

None9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Complete watch/button overview identifies five pushbuttons LIGHT/UP/DOWN/START/BACK, plus touch display. No rotary crown in the complete control inventory or visible model views.

None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview shows five buttons and no crown.

Rotating bezeliPhysical rotation or touch gestures around the display edge. A fixed decorative bezel is None.

None9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Complete documented controls are five buttons and touchscreen. No rotating bezel input. DCR exact controls description and maker five-button claim corroborate. This does not misclassify screen scrolling as physical bezel rotation.

None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Overview shows five buttons and no rotating bezel.

Gestures

Raise and turn wrist to wake display, Cover display with palm to turn it off and return to watch face9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Printed page 2 Overview explicitly documents covering the screen with a palm to turn off the display and return to the watch face. Printed page 82 display settings documents raising and turning the arm to look at the wrist to wake the screen. These are documented gestures, not inferred pinch or finger actions.

Raise and turn your arm to turn on the backlight2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Backlight settings: Gesture turns on the backlight by raising and turning your arm to look at your wrist.

Battery and charging

6 of 13 differ

Battery capacityiPublished battery capacity for the stated case size. Rated and typical capacity are distinguished in source notes.

Not available

Not available

Claimed battery lifeiMaker endurance claims with distinct operating modes and case sizes. With solar describes augmentation of that estimate, not hardware capability. Use false for ordinary claims without solar augmentation, true for explicitly solar-aided claims, and omit it when solar qualification is unclear. Source notes state AOD, GNSS, music and solar conditions. Do not create a normal-use row from an AOD-only claim. Low power denotes the maker battery-saver mode. Keep its typical, light-use and always-on claims separate from standard-mode claims. GPS power saving identifies an intermediate reduced-accuracy GNSS saving preset. Source notes retain the maker's preset name and published conditions. Max battery GPS is the distinct maximum-saving claim. When the maker has only one GPS saving preset, it is GPS power saving.

AGarmin Forerunner 165

Mode	With solar	Hours (h)
Smartwatch	No	264
Always-on	No	96
Low power	No	480
GPS	No	19
GPS, all systems	No	17

Source1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Battery life row: smartwatch mode up to 11 days (264 h), Battery Saver smartwatch mode up to 20 days (480 h, stored as low power), GPS-Only GNSS up to 19 h, All-Systems GNSS up to 17 h. Music SKUs add GPS-Only with music up to 7 h and All-Systems with music up to 6.5 h. The always-on row is from DC Rainmaker.8Reviewdcrainmaker.com/2024/02/garmin-forerunner-165-in-depth-review.htmlRead 6 October 2026Garmin battery chart as quoted at launch: smartwatch mode up to 11 days (4 days display always-on). The 4-day always-on claim is stored as 96 h. The maker page that states it sits behind a bot check.18Maker product pagesupport.garmin.com/en-PHRead 7 October 2026Exact standard/Music Battery Life Assumptions gives 11 days smartwatch, 4 days always-on and 20 days Battery Saver. GPS only 19 h, all-systems 17 h. Music-only GPS 7 h/all-systems 6.5 h. Maker workloads have their documented default screen/face, Pulse Ox off, no timed activity/music in ordinary smartwatch mode, and GPS 10 interactions/25 gestures per hour at 10 to 40 C. Values unchanged. Four-day AOD is directly primary-supported, separate from gesture mode.

BGarmin Forerunner 255

Mode	With solar	Hours (h)
Smartwatch	No	336
GPS	No	30
GPS, all systems	No	25
GPS, dual-band	No	16

Source1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Smartwatch mode up to 14 days (336 h). GPS-only GNSS up to 30 h. All-Systems GNSS up to 25 h. All-Systems plus Multi-Band up to 16 h. Manual footnote: smartwatch mode includes activity tracking, phone notifications and wrist heart rate.

Smartwatch mode (claimed)iMaker normal-use smartwatch claim without solar. A watch with only an explicit AOD-mode claim has no value here. Workloads differ and source notes must be read.

264h=CalculatedFrom Claimed battery life

336h=CalculatedFrom Claimed battery life

AOD battery life (up to)iMaker claimed smartwatch endurance with the always-on display enabled and without solar, for the base case. Source notes preserve workload and case conditions. This is a claim, not a measured test or an AOD-off estimate.

96h=CalculatedFrom Claimed battery life

Not available

GPS mode (claimed)iMaker regular GPS/GNSS activity claim without solar, for the base case. AOD, multi-band, music and power-saving conditions have separate rows when published.

19h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Solar chargingiPublished solar charging hardware capability. An ordinary battery estimate without solar augmentation does not prove that the watch lacks solar charging hardware.

Not available

No9Reviewdcrainmaker.com/2022/06/garmin-forerunner-multisport.htmlRead 11 October 2026Review covers the Forerunner 255, 255S, 255 Music and 255S Music with no solar model. Solar is introduced in this launch only on the Forerunner 955 Solar.

Charging methodiThe connection at the watch, not the cable end at the USB adapter. A proprietary inductive puck is not Qi unless interoperability is explicitly established.

Proprietary plug1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Garmin proprietary plug charger.

Proprietary plug1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Garmin proprietary plug charger.

Charging guidanceiPublished charging requirements, nominal estimates and compatibility guidance. Keep adapter ratings separate from power accepted by the watch.

Not available

Not available

Max charging power (watch)iPublished maximum charging power at the watch. Adapter rating or charger input power does not prove the power accepted by the watch.

Not available

Not available

Fast chargingiAn explicit fast-charging capability claim. A short charging time or high adapter wattage alone does not qualify.

Not available

Not available

Quick charge claimiMaker claim for usage from a short charge. Source notes identify the usage workload, such as normal use or sleep tracking.

Not available

Not available

Charge 0 to 80% (claimed)iMaker claim for charging an empty battery to 80%. Charger and approximate qualifiers belong in source notes.

Not available

Not available

Full charge time (claimed)iMaker advertised nominal full-charge duration. Approximate or theoretical maker estimates are allowed, with their conditions in source notes. Partial-charge intervals do not qualify. Measured 0 to 100% tests have a separate field.

Not available

120min2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Tips for charging: charging a fully depleted battery takes up to two hours, from a Garmin approved AC adapter or a computer USB port. Stored as a nominal claim of 120 minutes with the up-to qualifier.

Measured

None of 4 known

Peak brightness (measured)iReviewer measurement. Source notes state screen area, mode and ambient light. A small-area peak claim cannot be replaced with a full-screen measurement.

Not available

Not available

Battery life (measured)iReviewer-observed mixed-use endurance. Source notes state case size, AOD, workout use and whether it was a complete discharge. Extrapolation from partial discharge is excluded.

Not available

Not available

Battery tests (measured)iReviewer-observed endurance, with case size and test settings in source notes. Partial-discharge projections are not stored as measured endurance.

Not available

Not available

Full charge time (measured)iReviewer measurement from empty to full, not 0-80% or a charge from 5%. Source notes name the charger and case size.

Not available

Not available

Strap

3 of 6 differ

Lug widthiDistance between standard strap attachment lugs, not the decorative width of a proprietary strap. Unknown for custom connectors unless the maker publishes lug width.

20mm1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

22mm1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: quick release bands, 22 mm, industry standard.

Quick-release strapiThe supplied strap can be detached through its quick-release mechanism. Compatibility with quick-release replacement straps alone does not qualify.

Yes1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Yes1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Strap systemiPublished attachment system and compatible case sizes. Proprietary connectors are distinguished from standard spring bars.

Quick-release bands, 20 mm, industry standard1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Quick Release bands: Yes (20 mm, Industry standard).

Industry standard 22 mm quick release bands1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026

Strap materialiMaterial of the supplied strap for the stated package. Do not substitute material from another band sold separately.

Silicone1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026

Silicone1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: Strap material silicone.

Strap

Not available

Not available

Strap sizesiPublished wrist-circumference range for the stated strap or case. Source notes distinguish an overall compatible wrist range from one supplied strap size.

AGarmin Forerunner 165

Wrist (min) (mm)	Wrist (max) (mm)
126	203

Source1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Physical size row: fits wrists with a circumference of 126-203 mm. This is the overall fit, not a named strap size.

BGarmin Forerunner 255

Wrist (min) (mm)	Wrist (max) (mm)
130	205

Source1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Specs: fits wrists with a circumference of 130-205 mm. This is the overall range for the watch with its supplied silicone strap.

Regulatory

1 of 3 differ

FCC ID

IPH-04714, IPH-A47146Regulatory filingstatic.garmin.com/pumac/Forerunner%20165.pdfRead 6 October 2026Garmin compliance pack, test report for model A04714: FCC ID IPH-04714. Radios NFC, ANT and BLE only.7Regulatory filingstatic.garmin.com/pumac/Forerunner%20165%20Music.pdfRead 6 October 2026Garmin compliance pack for Forerunner 165 Music, model AA4714: FCC ID IPH-A4714. Adds IEEE 802.11 b/g/n Wi-Fi and Bluetooth EDR.

Not available

SAR limb (US)iPublished limb/wrist SAR for the stated base regional model under the US regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

SAR limb (EU)iPublished limb/wrist SAR for the stated base regional model under the EU regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

Other certifications

CE4Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%20165_DoC-EU.pdfRead 7 October 2026Exact Garmin EU Declaration of Conformity identifies A04714/Forerunner 165 and declares compliance with applicable EU directives/standards. Manufacturer CE conformity declaration, not a third-party laboratory endorsement. Exact Music AA4714 declaration independently confirms shared CE conformity.5Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%20165%20Music_DoC-EU.pdfRead 7 October 2026Exact Garmin EU Declaration of Conformity for AA4714/Forerunner 165 Music declares applicable EU directive/standards compliance. Both edition claims checked, no music-only mark inherited.

ANT+ certified2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026Front matter: this product is ANT+ certified.

In the box

1 of 2 differ

In the box

Forerunner 165 running watch, USB-C charging/data cable, Documentation1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026In the box tab: watch, USB-C charging/data cable, Documentation. Music SKUs name the Forerunner 165 Music running watch.

Forerunner 255, Charge/data cable, Documentation1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026In the Box tab: Forerunner 255, charge/data cable, documentation.

Power adapter in boxiA mains/USB power adapter is supplied. A charging cable, inductive puck or charging dock alone does not count.

No1Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026The complete box list has a cable and documentation but no power adapter.

No1Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026Box lists a charge/data cable and no power adapter.

Links

Not compared

Product page

www.garmin.com/en-NZ/p/pn/010-02863-201Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Public product HTML embeds the specs, in-the-box list and all six SKUs in GarminAppBootstrap. Ordinary curl fetched it. The en-US page sells only 010-02863-20 and -21. The en-NZ, en-GB and de-DE pages list all six.

www.garmin.com/en-US/p/780139/pn/010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026US store page for SKU 010-02641-01.

Spec sheet

www.garmin.com/en-NZ/p/pn/010-02863-201Maker product pagegarmin.com/en-NZ/p/pn/010-02863-20Read 7 October 2026Exact maker page embedded Specs tab contains complete specification tables for all six retail SKUs. Public GarminAppBootstrap JSON parsed as data, no script execution.

www.garmin.com/en-US/p/780139/pn/010-02641-011Maker product pagegarmin.com/en-US/p/780139/pn/010-02641-01Read 11 October 2026The specs tab of the US product page holds the full specification list for the 46 mm watch.

Manual

www8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdf9Owner's manualwww8.garmin.com/manuals/webhelp/GUID-607F08F6-33FC-40BF-9727-84E54043D82D/EN-US/Forerunner_165_Series_OM_EN-US.pdfRead 7 October 2026Exact current Garmin Forerunner 165 Series Watch Owner Manual. Covers standard and Music, marking Music-only sections. Complete controls, connectivity, safety and specifications read.

www8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdf2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-676967A0-1B23-4384-9BC9-76F3D643F1C8/EN-US/Forerunner_255_OM_EN-US.pdfRead 11 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year19Maker product pagegarmin.com/en-US/legal/consumer-limited-warrantyRead 7 October 2026Manufacturer limited warranty for US authorized purchases of non-aviation Garmin products, including standard/Music watches, one year. Current direct US legal-page render is a JavaScript shell. The public indexed maker global Consumer Limited Warranty revised December 30, 2025 independently gives the same one-year sentence. Statutory consumer rights and international distributor warranties are separate. This is not a universal regional warranty promise.21Maker product pagegarmin.com/en-XD/legal/consumer-limited-warrantyRead 7 October 2026Maker public indexed Consumer Limited Warranty, revised December 30, 2025, explicitly warrants non-aviation products for one year. Ordinary direct legal-page render is a JavaScript shell, so the independently read public indexed maker text supplies the sentence. Stored manufacturer warranty is qualified to US authorized purchases in the existing US source note. Statutory rights and international distributor coverage remain separate.

1year5Maker product pagegarmin.com/en-US/legal/consumer-limited-warrantyRead 11 October 2026Garmin consumer limited warranty, US: non-aviation products are free from defects in materials or workmanship for one year from the date of purchase.

Both are also in the API. Back to all smartwatches.