Garmin Forerunner 165 vs 55: the decision comes down to whether you want a brighter, more feature-rich everyday watch or a simpler running companion at a worthwhile saving. The 165 is the more appealing option if its AMOLED touchscreen and additional insights matter to you. The 55 can still make sense if you mainly want to record runs and follow structured workouts.
Research-based comparison: we compared Garmin’s published specifications and owner’s manuals. We have not tested these watches side by side, so we do not claim measured GPS accuracy, real-world battery results, or a hands-on winner.
Garmin Forerunner 165
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Choose the 165 for its AMOLED touchscreen and additional insights; choose the 55 when its simpler running tools meet your needs at a meaningful saving. Offline music requires the 165 Music model.
| Feature | Garmin Forerunner 165 | Garmin Forerunner 55 |
|---|---|---|
| Display | 1.2-inch AMOLED touchscreen | 1.04-inch MIP, buttons only |
| Smartwatch battery | Up to 11 days | Up to 14 days |
| GPS battery | Up to 19 hours, GPS only | Up to 20 hours |
| Offline music | Music version only | No |
| Weight | 39 g | 37 g |
Verdict
Compare the current price gap against the features you will use. Existing 55 owners do not need to upgrade unless the 165 solves a specific limitation.
Quick verdict: which one should you buy?
Choose the Forerunner 165 if you want an AMOLED screen, touch controls alongside physical buttons, and more detail about your training and overnight recovery. Choose the 165 Music specifically if leaving your phone behind while listening to downloaded audio is a priority.
Choose the Forerunner 55 if its current price is substantially lower and your checklist is straightforward: built-in GPS, running workouts, wrist heart rate, and fewer charging sessions in smartwatch mode. It already offers daily suggested runs; you do not need to buy the 165 just to get workout guidance.
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Check Forerunner 55 on AmazonCheck the current price, seller, condition, and availability on Amazon.
Already own a working 55? Keep it unless you can name a specific feature you would use regularly on the 165. A new screen alone will not improve your training consistency. For a closer look at the newer model, read our Garmin Forerunner 165 review.
Garmin Forerunner 165 vs 55: key specifications
| Feature | Forerunner 165 | Forerunner 55 |
|---|---|---|
| Display | 1.2-inch AMOLED, 390 × 390 | 1.04-inch MIP, 208 × 208 |
| Touchscreen | Yes, plus buttons | No; buttons |
| Case size | 43 × 43 × 11.6 mm | 42 × 42 × 11.6 mm |
| Weight | 39 g | 37 g |
| Smartwatch battery | Up to 11 days | Up to 14 days |
| GPS battery | Up to 19 hours in GPS-only mode | Up to 20 hours in GPS mode |
| Water rating | 5 ATM | 5 ATM |
| Daily suggested running workouts | Yes | Yes |
| Offline music | 165 Music model only | No |
| Strap width | 20 mm quick release | 20 mm quick release |
Display and controls: the most noticeable difference
The 165 uses a larger, higher-resolution AMOLED screen, while the 55 has a transflective memory-in-pixel display. The practical choice is partly personal: do you want a colorful screen for everyday interaction, or prefer the simpler presentation of an always-visible MIP display?
The 165’s touchscreen adds another way to navigate menus, but it retains buttons. The 55 relies on buttons throughout. If you like predictable button presses during a workout, touch is an extra convenience rather than a requirement. Screen technology should not be confused with tracking quality: a sharper display does not establish that a watch measures a run more accurately.
Both cases are relatively compact on paper. The 165 is one millimeter wider and two grams heavier. Those small differences are unlikely to settle the decision for everyone; wrist shape, strap adjustment, and how tightly you wear the watch matter too. If possible, try either model on before choosing solely from case dimensions.
Running features: the 55 already covers the essentials
The Forerunner 55 is more than a stopwatch with GPS. Garmin documents custom running and cycling workouts, daily suggested runs based on training history and fitness level, and training plans transferred through Garmin Connect. Its recovery advisor also helps you plan the interval before another hard effort.
That makes the 55 a credible option for someone building a routine or following a structured plan. Before paying more, decide which part of your current routine needs a better tool. If all you need is to start an activity, follow a workout, and review it afterward, the basic workflow may be enough.
The 165 adds a more detailed daily experience, including overnight HRV status and a morning report. These can help you review trends alongside your own sense of fatigue. They should inform your decisions rather than overrule how you feel. A recovery metric is an estimate, and neither watch guarantees better race results.
Battery life: the newer watch does not win every category
Garmin rates the 55 for up to 14 days in smartwatch mode and up to 20 hours in GPS mode. The 165 is rated for up to 11 days in smartwatch mode and up to 19 hours using GPS only. Those figures give the 55 an advantage in the stated modes, although they do not predict your exact charging schedule.
Longer workouts, notifications, display settings, and other enabled features affect consumption. Listening to offline music on a compatible 165 Music also changes the relevant battery estimate. Compare the mode you will actually use instead of treating the headline smartwatch figure as continuous GPS endurance.
For ordinary training, the useful question is whether either watch fits your charging habits. If you routinely forget to charge accessories, a longer interval can matter more than another software feature. If you charge regularly, the display and training tools may carry more weight.
Music: check the exact Forerunner 165 version
The Forerunner 55 can control music playing on your paired phone. That is different from storing tracks on the watch. It does not provide offline music playback for phone-free listening.
Within the 165 family, downloaded music is a feature of the Forerunner 165 Music. Do not assume a listing for the standard 165 includes it. Check the full model name before buying. Compatible third-party music services may also require their own subscription; buying the watch does not automatically include a music-service plan.
Price and value: compare the actual offers
We have not inserted a fixed retail price because offers and availability change. Compare the same market, model, condition, and warranty terms. A discounted 55 may be appealing; a small gap between it and the 165 makes the additional features easier to justify.
Our buying rule is simple: pay for features you expect to use every week. List your three priorities before looking at an offer. If the 55 meets all three, savings can go toward something else in your running setup. If offline music is essential, compare the 165 Music specifically rather than the cheaper standard version.
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Check the Forerunner 165 Standard on Amazon
Should you upgrade from the Forerunner 55 to the 165?
Consider upgrading if the display is frustrating you, you want the 165’s additional overnight and morning insights, or you specifically need the Music version. The upgrade should remove a real limitation in your day-to-day use.
Keep your 55 if it records your training reliably and you are satisfied with its workout tools. Replacing a functioning watch is optional. More information is useful only if you understand it and change a decision because of it.
Frequently asked questions
Is the Forerunner 165 better than the 55 for beginners?
The 165 offers a richer screen and more features, but beginners can still follow structured running workouts with the 55. Choose based on budget, controls, and the features you will use rather than assuming a beginner needs the newer watch.
Which has better battery life?
The 55 has higher stated maximums for smartwatch mode and GPS mode: 14 days and 20 hours, compared with 11 days and 19 hours GPS-only for the 165. Actual results depend on settings and use.
Can you listen to music without a phone?
You need the Forerunner 165 Music for downloaded audio within this comparison. The standard 165 and the 55 should not be bought on the assumption that they offer the same offline music feature.
Is the Forerunner 55 still worth considering?
Yes, if it is available at a meaningful saving and its running tools meet your needs. Check the offer’s condition, seller, and warranty, particularly when comparing older stock or renewed products.
Final verdict
For a new purchase, we would lean toward the Forerunner 165 when the price gap is manageable and its screen and additional insights appeal to you. The Forerunner 55 remains a sensible value choice when substantially cheaper. Existing 55 owners have the strongest reason to wait: upgrade for a specific benefit, not simply because another model is newer.
Sources and comparison method
We used manufacturer documentation to check specifications and distinguish supported features. Our buying recommendations are editorial judgments, not results from hands-on tests. No numerical review score or customer rating has been invented.