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Forerunner 55 vs 165: Choose by Screen Preference and Battery Mode

Both watches provide daily suggested running workouts after a VO₂ max estimate is available. The main documented tradeoff is an always-button Forerunner 55 with a sunlight-visible transflective display versus the Forerunner 165’s AMOLED touchscreen and buttons; Garmin lists different maximum battery estimates by mode, not a controlled real-world winner.

Published by Pickoryx · Published 2026-09-30

Source checked 2026-09-30 22:50 UTC

Products compared

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The buying question

Is the Forerunner 165’s AMOLED touchscreen worth choosing over the Forerunner 55’s button-only operation, and how should Garmin’s mode-specific battery estimates affect that choice?

Screen and interaction preference versus Garmin’s published maximum battery estimates across different modes; both manuals document daily suggested running workouts after a VO₂ max estimate is available.

Quick verdict

When the recommendation changes
  • Your preferred screen interaction changes; or your expected use depends on GPS modes or always-on display more than on smartwatch-mode maximums.

The differences that matter

Display And Controls

Garmin Forerunner 55 Black (010-02562-00)

Sunlight-visible transflective MIP display; operated with physical buttons.[1, 2]

Garmin Forerunner 165 Black/Slate Gray, standard non-Music 43 mm (010-02863-20)

AMOLED display and touchscreen plus buttons; touch controls may be disabled.[3]

What this changes: Pick according to preferred screen and input method; neither is a universal winner.[1, 2, 3]

The better fit depends on your priorities

Battery Modes And Limits

Garmin Forerunner 55 Black (010-02562-00)

Up to 14 days in smartwatch mode with smart notifications and wrist heart rate; up to 20 hours in GPS mode.[2]

Garmin Forerunner 165 Black/Slate Gray, standard non-Music 43 mm (010-02863-20)

Up to 11 days smartwatch mode with activity tracking, phone notifications, wrist heart rate; up to 19 hours GPS-only or 17 hours all-systems GPS.[3]

What this changes: Mode-specific maximums help frame intended use but do not establish which watch lasts longer in the same real-world configuration.[2, 3]

The better fit depends on your priorities

Training Guidance And Daily Features

Garmin Forerunner 55 Black (010-02562-00)

Daily suggested workouts documented; a VO₂ max estimate is required.[2]

Garmin Forerunner 165 Black/Slate Gray, standard non-Music 43 mm (010-02863-20)

Daily suggested workouts documented; a VO₂ max estimate is required. Suggestions update with training habits, recovery time, and VO₂ max.[3]

What this changes: Because both manuals document this feature, it is a shared baseline rather than an upgrade-exclusive advantage.[2, 3]

No clear winner

Best for your routine

Runner who prefers button-only operation and prioritizes Garmin’s listed smartwatch/GPS maximums

Best fit: Garmin Forerunner 55 Black (010-02562-00)

Based on listed features, not comparative testing.

The Forerunner 55’s documented interaction is button-based, and Garmin lists up to 14 days smartwatch and 20 hours GPS for it under stated conditions.

View Garmin Forerunner 55 Black (010-02562-00) on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

If the Forerunner 165 costs more when you shop, the touchscreen and AMOLED display are the clearest documented reasons to consider paying extra; decide whether those features matter to you.

No reliable price history is included, so this comparison cannot say whether to buy now or wait. Compare the current listing’s exact model, seller, condition, shipping, and total delivered price when you shop.

Limitations

  • Battery values are Garmin maximum estimates for different named modes, with different stated conditions. They are not controlled side-by-side results and may not match everyday use; Garmin says the Forerunner 165’s actual battery life depends on enabled features.
  • The Forerunner 165 Series manual covers both Music and non-Music watches. This comparison covers the standard non-Music 43 mm Forerunner 165; Music-only functions are outside its scope.
  • Pickoryx did not conduct hands-on testing, verify personal runtime, or measure display readability.

Questions shoppers ask

Does the Forerunner 165 have a touchscreen?

Yes. Garmin’s Forerunner 165 Series manual describes touchscreen and button controls and explains how to disable touch. The model compared here is the standard, non-Music 43 mm version.

Do both watches offer daily suggested running workouts?

Garmin documents daily suggested workouts for both models. On each, a VO₂ max estimate is required before the watch can provide a suggestion, so this feature alone does not distinguish the pair.

Which has longer battery life?

Garmin’s published maximums are higher for the Forerunner 55 in the listed smartwatch and GPS modes. The modes and conditions differ, and these figures are not a controlled comparison or a prediction of your personal runtime.

Methodology and sources

Compared named display/control features, daily suggested workout requirements, and Garmin’s mode-specific maximum battery estimates in the official sources listed. Battery modes have different conditions and are not treated as like-for-like measurements.

Organized manufacturer documentation into a buyer-focused comparison; no hands-on test or independent measurement was performed.

View 4 sources
  1. 1.Garmin Product Compare: Forerunner 55 display and specificationsGarmin · Official specifications · Source checked 2026-09-30 22:50 UTC
    Evidence used on this page
    • Forerunner 55 column; Display type, display size, and battery life rows: Garmin identifies the Forerunner 55 display as sunlight-visible transflective memory-in-pixel (MIP); listing for the exact Forerunner 55 product ID 741137.
  2. 2.Forerunner 55 Owner’s Manual (U.S. English)Garmin · Official specifications · Source checked 2026-09-30 22:50 UTC
    Evidence used on this page
    • Device Overview, PDF p. 4–5; Following a Daily Suggested Workout, p. 13; Specifications, p. 48: Explains button operation, the VO₂ max requirement for daily suggested workouts, and maximum smartwatch/GPS battery estimates with stated conditions.
  3. 3.Forerunner 165 Series Watch Owner’s Manual (U.S. English)Garmin · Official specifications · Source checked 2026-09-30 22:50 UTC
    Evidence used on this page
    • Using the Watch, p. 10; touch controls, p. 35; Following a Daily Suggested Workout, p. 37; AMOLED screen settings, pp. 82–84; Battery Life Information, p. 94: Manual for the Forerunner 165 Series (both Music and non-Music models). Documents touch and button use, touch disable, AMOLED settings, daily suggested workout prerequisite, and mode-specific battery estimates. Assigned product is standard non-Music SKU 010-02863-20.
  4. 4.Garmin Forerunner 165, part number 010-02863-20Garmin · Official specifications · Source checked 2026-09-30 22:50 UTC
    Evidence used on this page
    • Part number, Music-No selector, Black/Slate Grey model/color, overview and specifications: Garmin’s SKU page identifies part 010-02863-20 as the standard non-Music Black/Slate Grey Forerunner 165. It is used only to confirm the model variant, not U.S. offer terms.

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