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Garmin Forerunner 55

GarminSport smartwatch

Forerunner 55

Released June 2021.3Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-2Read 6 October 2026Dated June 2, 2021: the Forerunner 55 is available now in black, white or aqua. Maker statement of actual availability on the announcement day. Last checked 23 October 2026.

Case size
42mm
Platform
Proprietary
Display type
MIP
Battery life
336h

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At a glance

All specs

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General

Series
Forerunner1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Product title Forerunner 55. Garmin Forerunner running watch line.
Model numbers
A04162, 010-02562-50, 010-02562-51, 010-02562-52, 010-02562-531Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026The page colour selector lists 010-02562-50 Black, 010-02562-51 White, 010-02562-52 Aqua and 010-02562-53 Grey. These are the Singapore part numbers. A04162 is the hardware model number from the manual and the EU declaration.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Back cover: M/N A04162.4Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%2055_DoC-EU.pdfRead 6 October 2026EU Declaration of Conformity, issued 23/03/2021, revised 14/08/2025: Model Numbers A04162, Forerunner 55.
GTIN / EAN
7537592833227Retailer pageelectronicscrazy.sg/garmin-gm-010-02562-50-forerunner-55-smartwatch-blackRead 7 October 2026Exact Singapore black SKU 010-02562-50. No barcode from the European -10 model is transferred. Published text: Model: GM-010-02562-50. GTIN, UPC, EAN, JAN or ISBN: 753759283322
Announced
2 June 20213Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-2Read 6 October 2026Olathe, June 2, 2021 announcement.
Status
Not available
Predecessor
Not available
Successor
Garmin Forerunner 7020Maker product pagegarmin.com/nl-NL/blog/verschillen-forerunner-70-en-forerunner-55Read 23 October 2026Garmin's Dutch blog says the Forerunner 70 is the successor of the Forerunner 55.
Launch price (US)
$199.993Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-2Read 6 October 2026Suggested retail price of $199.99.
Launch price (EU)
€199.998Press releasegarmin.com/fr-FR/newsroom/journee-mondiale-de-la-course-a-pied-garminlance-la-forerunner-55-une-montre-de-running-connectee-pour-un-style-de-vie-sain-et-equilibreRead 7 October 2026Garmin France launch release, 2 June 2021, public euro recommended retail price. The original black, white and aqua packages are included. This is not the later Grey package price. Published text: 3 modèles, noir, blanc ou bleu, sont disponibles dès à présent au prix public conseillé de 199,99 €.
Markets
SG7Retailer pageelectronicscrazy.sg/garmin-gm-010-02562-50-forerunner-55-smartwatch-blackRead 7 October 2026The exact 010-02562-50 package is listed for Singapore. This is the source market, not an inferred language market. Published text: Sold and shipped from Singapore
Colours
Black, White, Aqua, Grey1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Colour names verbatim from the Singapore colour selector. The US launch release names black, white and aqua. Grey appears on the Singapore page only.3Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-2Read 6 October 2026Black, white or aqua at launch.
Segment
Sport3Press releasegarmin.com/en-US/newsroom/press-release/wearables-health/garmin-2Read 6 October 2026Maker describes it as an easy-to-use GPS running smartwatch.
OS updates promised
Not available
Security updates until
Not available

Case

Front and side, drawn to scale.

Case size
42mm1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026One size. Specs: Physical size 42 x 42 x 11.6 mm. Reviews confirm only a 42 mm case is sold.6Reviewtechradar.com/reviews/garmin-forerunner-55Read 6 October 2026The Forerunner 55 is only available with a 42mm case.
Case shape
Round1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Maker product photos show a round case with a round 1.04 in display.
Case material
Plastic10Reviewtechradar.com/reviews/garmin-forerunner-55Read 7 October 2026Housing material. Garmin does not publish a housing material in the exact model comparison table. The separate maker datasheet bezel row must not be treated as housing material. Published text: The watch has a plastic case (in black, white or aqua)
Case material (as published)
Plastic10Reviewtechradar.com/reviews/garmin-forerunner-55Read 7 October 2026Broad published material. Gadgets & Wearables specifies a fibre-reinforced polymer case, which is a plastic subtype. Galaxus independently calls the case plastic. No back material is inferred. Published text: The watch has a plastic case
Back
Not available
Case dimensions
Height42Width42Thickness11.6mm(1.7 × 1.7 × 0.5 in)1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Specs: Physical size 42 x 42 x 11.6 mm. The page does not say whether the thickness includes the heart rate sensor.
Weight (case only)
Not available
Weight with strap
37g(1.3 oz)11Maker product pagegarmin.com/en-GB/compareRead 7 October 202642 mm watch with its supplied silicone strap. Maker weight is unqualified. Forbes explicitly says 37 g including strap at https://www.forbes.com/sites/andrewwilliams/2026/04/28/the-surprising-garmin-watch-london-marathon-winner-sabastian-sawe-used/. This qualifies the matching maker weight. No case-only value is inferred. Published text: Weight: 37 g12Press articleforbes.com/sites/andrewwilliams/2026/04/28/the-surprising-garmin-watch-london-marathon-winner-sabastian-sawe-usedRead 7 October 2026Explicit strap scope of the matching maker 37 g claim: weighing just 37g including strap. This is reported specification prose, not a reviewer scale measurement.19Maker product pagegarmin.com/es-MX/compareRead 7 October 2026Exact single-product maker Peso 37 g. Forbes independently supplies including-strap scope for same published 37 g. Not inferred case-only mass or measurement.

Durability

Water resistance
5ATM1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 20262Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49: Water rating Swim, 5 ATM. Footnote: withstands pressure equivalent to a depth of 50 m.
Water resistance standard
Not available
Dust and water rating
Not available
Dive rating
Not available
Max dive depth
Not available
MIL-STD-810
Not available
MIL-STD-810 tests
Not available
Operating temperature
Min-20Max60°C2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49 Specifications: operating temperature range -20 to 60 C. Charging range 0 to 45 C is separate.

Display

Display type
MIP1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Display type (as published)
Sunlight-visible, transflective memory-in-pixel (MIP)1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Screen size
1.04in(2.6 cm)1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Specs: Display size 1.04 in (26.3 mm) diameter.
Resolution
208 × 208px1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Pixel density
Not available
Display area
Not available
Touchscreen
No5Reviewdcrainmaker.com/2021/06/garmin-forerunner-55-depth-review.htmlRead 6 October 2026There's no touchscreen here. Two buttons on the right, three on the left.
Max refresh rate
Not available
Min refresh rate
Not available
Peak brightness
Not available
Minimum brightness
Not available
Always-on display
Yes5Reviewdcrainmaker.com/2021/06/garmin-forerunner-55-depth-review.htmlRead 6 October 2026The screen is always-on, all the time. MIP display.
Display cover
Other glass1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Specs: Lens material chemically strengthened glass. No brand name is given.
Display cover (as published)
Chemically strengthened glass1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026

Platform

Platform
Proprietary13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model specification inventory. Not Wear OS or watchOS. Published text: Operating system at launch Garmin proprietary
OS at launch
Garmin proprietary13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Published software family. No unsupported launch firmware number is supplied. Published text: Operating system at launch Garmin proprietary
Software
Not available
Latest OS
Forerunner 55 software 11.0314Maker product pageforums.garmin.com/sports-fitness/running-multisport/f/forerunner-55-series/416431/forerunner-55-series-software-update-11-03---100Read 7 October 2026Official Garmin staff release announcement. Latest confirmed public software rollout located as of 2026-10-07. User reports of 11.04 have no official release proof and are not substituted. Published text: Software version 11.03 for the Forerunner 55 is at 100% rollout.
Works with
iOS, Android1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Phone requirement
Not available
App store
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Voice assistants
Not available
Chipset
Not available
Process
Not available
CPU cores
Not available
CPU configuration
Not available
Max CPU clock
Not available
GPU
Not available
Low-power coprocessor
Not available

Memory

RAM
Not available
Storage
32 MB11Maker product pagegarmin.com/en-GB/compareRead 7 October 2026Published onboard data-history memory, not RAM, user-free capacity or Connect IQ app RAM. Decimal MB to GB conversion. Independently confirmed on exact Forerunner 55 010-02562-02 maker page https://www.garmin.com/es-MX/p/741137/pn/010-02562-02/, which states Memoria/historial 32 MB. Older 200-hour activity-history claims are not converted to capacity. Direct compare shell needs JavaScript, readable indexed maker table supplied the exact one-product column. Published text: Memory/history: 32 MB19Maker product pagegarmin.com/es-MX/compareRead 7 October 2026Public indexed exact single-product Forerunner 55 maker comparison table Memoria/historial 32 MB, independently read in full. Decimal 0.032 GB. History-data storage, not RAM or user-free capacity. Direct HTTP compare shell requires JavaScript and is not bypassed.

Health sensors

Heart rate sensor
Garmin Elevate wrist heart rate monitor1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Sensors table: Garmin Elevate wrist heart rate monitor. DC Rainmaker identifies it as the Elevate V3 sensor.
ECG capability
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model health feature inventory. Garmin maker sensor table lists Elevate optical HR and accelerometer, no ECG. Published text: ECG No
Blood oxygen sensing
No5Reviewdcrainmaker.com/2021/06/garmin-forerunner-55-depth-review.htmlRead 6 October 2026Garmin doesn't enable PulseOx on the FR55, so you won't get blood oxygen levels with this watch.
Skin temperature sensing
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model health feature inventory. Weather temperatures and phone forecasts are not skin-temperature sensing. Published text: Skin temperature No
Blood pressure feature
None13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model feature inventory. Optical heart rate and all-day stress are separate functions. Published text: Blood pressure No
Body composition sensor
Not available
Skin conductance (EDA)
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model sensor inventory. Stress estimates do not establish EDA hardware. Published text: Galvanic skin response No
Medical clearances
Not available

Motion and environment sensors

Accelerometer
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Accelerometer range
Not available
Gyroscope
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026The Sensors table lists only GPS, GLONASS, Galileo, the Garmin Elevate wrist heart rate monitor and Accelerometer. Garmin lists gyroscope, compass and barometric altimeter in this table on watches that have them.
Barometric altimeter
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Not in the Sensors table, which lists only GPS, GLONASS, Galileo, Elevate HR and Accelerometer. DC Rainmaker readers confirm no barometric altimeter.
Compass
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Not in the Sensors table, which lists only GPS, GLONASS, Galileo, Elevate HR and Accelerometer.
Ambient light sensor
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model sensor inventory. Gesture and manually adjustable backlight are separate functions. Published text: Ambient light sensor No
Depth gauge
Not available
Depth gauge range
Not available
Water temperature sensor
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model sensor inventory explicitly lists no temperature sensor. Current weather from a paired phone is not onboard sensing. Published text: Temperature No

Health and fitness

Health features
Continuous heart rate, Heart rate alerts, Sleep tracking, Sleep stages, Stress tracking, Cycle tracking1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Health Monitoring: wrist-based heart rate (constant, every second), abnormal heart rate alerts (high and low), all-day stress, sleep (advanced), Woman's Health. Sleep stages from the manual page 19. Wellness functions, not medical.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 19: sleep statistics include total hours of sleep, sleep stages and sleep movement. Page 23: abnormal heart rate alert.
Fitness features
Automatic workout detection, VO2 max, Recovery advice, Pool swim, Interval workouts1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Training table: VO2 Max (Run), Recovery time, Interval training. Swimming: Pool Swimming profile only, no open water profile. Move IQ is listed. The manual page 20 says Move IQ can automatically start and save a timed walking or running activity. The page footnote says the watch is not compatible with on-device courses.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 20: Move IQ can automatically start and save a timed walking or running activity. Page 14 interval workouts. Page 25 VO2 max estimate for running. Page 26 recovery time.
Sport profiles
Not available
Dive modes
Not available
External sensors
Heart rate strap, Speed and cadence, Foot pod1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Foot pod capable, Speed and cadence sensor support. The manual page 22 adds ANT+ chest heart rate monitors. DC Rainmaker notes there is no direct power meter support.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 22: compatible with ANT+ chest heart rate monitors. Page 37 foot pod. Page 38 bike speed or cadence sensor.

Safety

Fall detection
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Safety table: Incident Detection during select activities only. By the field definition this is not general fall detection.
Car crash detection
Not available
Emergency SOS
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Safety table: Assistance. Sends a message with location to emergency contacts set in Garmin Connect. Needs a paired phone with data. It does not contact emergency services.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 32: hold LIGHT to send a message with name, LiveTrack link and GPS location to emergency contacts. The Garmin Connect app does not contact emergency services. Needs a paired phone with a data plan.
Emergency siren
Not available
Live location sharing
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Safety table: LiveTrack. Needs a paired phone with data.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 32: LiveTrack lets friends and family follow races and training in real time.
Dedicated LED flashlight
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model feature inventory. Display backlight is not a dedicated flashlight. Published text: LED flashlight No

Positioning

Positioning
GPS, GLONASS, Galileo1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Sensors table: GPS, GLONASS, Galileo. The manual page 42 names the same three systems.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 42: GPS, GLONASS and GALILEO. GPS + GLONASS and GPS + GALILEO are separate settings.
Dual-band GNSS
Not available
Offline maps
No6Reviewtechradar.com/reviews/garmin-forerunner-55Read 6 October 2026The display isn't high-res enough to show maps of running routes. The maker page also says the watch is not compatible with on-device courses.

Connectivity

Bluetooth
Not available
Bluetooth version
4.1 BLE15Retailer pagegalaxus.at/en/s1/producttype/smartwatches-2446/brand/garmin-201/compare/forerunner-55-vs-70-25652Read 7 October 2026Forerunner 55 left column, SKU 010-02562-10, 42 mm. Maker states Bluetooth Low Energy without a core version. Only published retailer version is stored. Bluetooth software version numbers such as 0.00 are unrelated. Published text: Bluetooth version: 4.1 BLE
Wi-Fi
Not available
Wi-Fi standard
Not available
Wi-Fi bands
Not available
Cellular
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Connectivity row lists Bluetooth and ANT+ only. All four colour part numbers share one spec table. No cellular edition is listed.
Network
Not available
4G bands
Not available
5G bands
Not available
NFC
No2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49 Specifications: Wireless frequency 2.4 GHz @ 1 dBm maximum. No 13.56 MHz NFC radio is listed. The maker page lists no Garmin Pay.
Contactless payments
No9Maker spec sheet (PDF)shop.meinetelewelt.at/public/files/pdf/1.75.479.10150-Datenblatt.pdfRead 7 October 2026Forerunner 55 column in the maker datasheet comparison table, page 3. Filled dot denotes supported, open circle unsupported. Garmin Pay is absent. Published text: Garmin Music | Garmin Pay: ○|○
Payment services
Not available
Ultra-wideband
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model radio inventory. Maker-hosted A04162 radio report lists ANT and BLE only. Published text: UWB No
Satellite
Not available
ANT+
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 20262Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 37: the watch pairs with wireless sensors using ANT+ or Bluetooth technology.

Audio

Speaker
No13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model audio inventory. Manual key and alert tones are beeps, not a voice/media speaker. Published text: Speakers No
Microphones
013Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model audio inventory lists no microphone. This is zero installed microphones, not an unspecified voice assistant microphone count. Published text: Microphone No
Calls on the watch
None13Spec databasegadgetsandwearables.com/technical-specs/garmin-forerunner-55Read 7 October 2026Exact model capability inventory. Incoming call notifications and phone controls are separate from speaking on the watch. Published text: Bluetooth calling No
Music on the watch
No9Maker spec sheet (PDF)shop.meinetelewelt.at/public/files/pdf/1.75.479.10150-Datenblatt.pdfRead 7 October 2026Forerunner 55 column in the maker datasheet comparison table, page 3. No Garmin Music. Phone playback remote control is a separate supported function. Published text: Garmin Music | Garmin Pay: ○|○

Controls

Buttons
52Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 5 Device Overview lists five buttons: LIGHT, START STOP, BACK, DOWN, UP.
Named operating buttons
LIGHT, START STOP, BACK, DOWN, UP2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Button labels verbatim from page 5 Device Overview.
Crown
None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 5 Device Overview shows five push buttons and no crown.
Rotating bezel
None2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 5 Device Overview shows five push buttons and no rotating bezel. The bezel carries printed button labels.
Gestures
Raise and turn wrist to activate backlight16Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 7 October 2026Owner manual version 9, January 2026, printed page 45 Changing the Backlight Settings. Supports separate activity and non-activity settings. No touchscreen gesture is claimed. Published text: Select Gesture to turn on the backlight by raising and turning your arm to look at your wrist.

Battery and charging

Battery capacity
Not available
Claimed battery life
ModeWith solarHours (h)
SmartwatchNo336
GPSNo20
Source1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Specs: Smartwatch Mode up to 2 weeks (336 h), GPS mode up to 20 hours. The manual page 49 states up to 14 days with smart notifications and wrist heart rate.2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49: up to 14 days for smartwatch mode with smart notifications and wrist heart rate (336 h). Up to 20 hr in GPS mode.
Smartwatch mode (claimed)
336h
AOD battery life (up to)
Not available
GPS mode (claimed)
20h
Solar charging
Not available
Charging method
Proprietary plug2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 48: the watch comes with a proprietary charging cable that plugs into the charging port on the watch.
Charging guidance
Not available
Max charging power (watch)
Not available
Fast charging
Not available
Quick charge claim
Not available
Charge 0 to 80% (claimed)
Not available
Full charge time (claimed)
120min2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 48: charging a fully depleted battery takes up to two hours. Published as an upper bound. The page asks for an adapter of at least 5 W.

Measured

We could not find any of these 4 fields. Show them
Peak brightness (measured)
Not available
Battery life (measured)
Not available
Battery tests (measured)
Not available
Full charge time (measured)
Not available

Strap

Lug width
20mm1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 20262Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49: compatible with 20 mm wide, standard, quick-release bands.
Quick-release strap
Yes1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 20262Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026Page 49: slide the quick-release pin on the spring bar to remove the band.
Strap system
20 mm wide, standard, quick-release bands2Owner's manualwww8.garmin.com/manuals/webhelp/GUID-3A791586-B59F-4B37-B9C5-5A41F8C6BE0B/EN-US/Forerunner_55_OM_EN-US.pdfRead 6 October 2026
Strap material
Silicone1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026
Strap
Not available
Strap sizes
Wrist (min) (mm)Wrist (max) (mm)
126203
Source1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026Specs: fits wrists with a circumference of 126-203 mm. Overall fit of the supplied band, no size name.

Regulatory

FCC ID
IPH-0416217Regulatory filingstatic.garmin.com/pumac/Forerunner%2055.pdfRead 7 October 2026Current maker-hosted regulatory bundle begins with February 2026 Chile declaration. Rogers Labs A04162 test report 210120 cover is bundle PDF page 2 and explicitly lists FCC ID IPH-04162 and IC 1792A-04162. Hardware A04162 matches the manual. ANT/BLE radios only, no core Bluetooth version inferred.
SAR limb (US)
Not available
SAR limb (EU)
Not available
Other certifications
ISED Canada: 1792A-04162, EU RED 2014/53/EU Declaration of Conformity, EU RoHS 2011/65/EU Declaration of Conformity, Chile SUBTEL Resolution 737 compliance declaration (2026)17Regulatory filingstatic.garmin.com/pumac/Forerunner%2055.pdfRead 7 October 2026Bundle PDF page 2 Rogers Labs report cover lists Canada IC 1792A-04162. EU directives are independently stated in exact A04162 maker DoC revised 14 August 2025. Bundle PDF page 1 declares Chile SUBTEL Resolution 737 compliance 2026 for Forerunner 55/A04162. Radio/environmental compliance, not medical clearance.18Maker spec sheet (PDF)static.garmin.com/pumac/Forerunner%2055_DoC-EU.pdfRead 7 October 2026English first page, model A04162, Forerunner 55. Application of Council Directive: 2011/65/EU. 2014/53/EU. Declaration revised 14 August 2025. These are RoHS and RED compliance, not medical clearance.

In the box

In the box
Forerunner 55, Charging cable, Documentation1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026In The Box tab, verbatim.
Power adapter in box
No1Maker product pagegarmin.com.sg/products/wearables/forerunner-55-blackRead 6 October 2026In The Box lists the watch, a charging cable and documentation. No power adapter.

Warranty

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Manufacturer warranty (source market)
Not available

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Variants

Each variant lists only what differs from the specs above.

Model numberColours
010-02562-50Black
010-02562-51White
010-02562-52Aqua
010-02562-53Grey

Sources

We read 20 sources for this smartwatch. The numbers match the markers in the sheet.

  1. Read 6 October 2026Backs 38 fields
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  11. Maker product pagegarmin.com/en-GB/compare
    Read 7 October 2026Backs 2 fields
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  19. Maker product pagegarmin.com/es-MX/compare
    Read 7 October 2026Backs 2 fields
  20. Read 23 October 2026Backs 1 field

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