Garmin Forerunner 265 vs Garmin Instinct 3 Solar
Garmin Forerunner 265 (2023, listed at $449) and Garmin Instinct 3 Solar (2025, listed at $449) are both sport watches, so the choice comes down to specifics.
Specs last updated · prices are list prices
Garmin Forerunner 265
Mid-range runner's pick — bright AMOLED, training load focus, race predictor.
Garmin Instinct 3 Solar
Solar-charged tank — months of battery, MIL-STD-810 toughness, brilliant always-on MIP screen.
The verdict
On the numbers we track, Garmin Forerunner 265 wins on weight (47 g vs 58 g) and tracked features (5 vs 3); Garmin Instinct 3 Solar wins on battery life (24 days vs 13 days) and water rating (10ATM vs 5ATM).
Bottom line: there is no clear winner on specs (2 to 2). Decide on phone support, how often you are willing to charge, your main sport and your budget, or run the free quiz to see how each ranks for your answers.
Spec by spec
| Spec | Garmin Forerunner 265 | Garmin Instinct 3 Solar |
|---|---|---|
| Battery (rated) | 13 days | 24 days |
| Weight | 47 g | 58 g |
| List price | $449 | $449 |
| Water rating | 5ATM | 10ATM |
| Tracked features | 5 | 3 |
| Case size | 46 mm | 45 mm |
| Display | AMOLED | MIP |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | running and multisport and triathlon | outdoor adventure and multisport and triathlon |
| Released | 2023 | 2025 |
Trophy marks the better value on the five measurable specs. Battery is the manufacturer's rating, not our test. How we score is on the methodology page.
Feature overlap
Both have (3)
- built-in GPS
- blood-oxygen (SpO₂)
- swim tracking
Only Garmin Forerunner 265 (2)
- on-device music
- AMOLED display
Only Garmin Instinct 3 Solar (0)
Nothing unique.
Which one should you pick?
Pick the Garmin Forerunner 265 if…
- You want a lighter watch: 47 g vs 58 g.
- You need on-device music and AMOLED display, which the Garmin Instinct 3 Solar does not list.
- Your main use is running: it is listed for that and the Garmin Instinct 3 Solar is not.
- You might switch phones: it works with both iPhone and Android, the Garmin Instinct 3 Solar only works with Android.
- You want a bright AMOLED screen.
Skip it if…
- • You have a small wrist (under about 160 mm) — the 46 mm case we list is large (check whether a smaller size is sold).
Pick the Garmin Instinct 3 Solar if…
- You want fewer charges: about 24 days per charge vs 13 days.
- Your main use is outdoor adventure: it is listed for that and the Garmin Forerunner 265 is not.
- You might switch phones: it works with both iPhone and Android, the Garmin Forerunner 265 only works with Android.
- You want the newer model (2025 vs 2023).
- You swim or paddle: 10ATM vs 5ATM.
Skip it if…
- • You want a bright, vivid AMOLED screen — this one uses a lower-power display.
Frequently asked questions
Which has better battery life, the Garmin Forerunner 265 or the Garmin Instinct 3 Solar?
The Garmin Instinct 3 Solar has the longer rated battery life: about 24 days per charge against 13 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Garmin Forerunner 265 or the Garmin Instinct 3 Solar?
They have the same list price ($449) in our database. Check Amazon for today's price.
Do the Garmin Forerunner 265 and Garmin Instinct 3 Solar work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Garmin Forerunner 265 or the Garmin Instinct 3 Solar?
Garmin Forerunner 265: 5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving. Garmin Instinct 3 Solar: 10ATM is suitable for swimming and surface water sports. It is not a dive rating unless the maker says so.
Not sure either is right for you?
Nine questions about your phone, sport, wrist and budget, scored against all of our watches with the reasoning shown.
Take the free quizWhere each one ranks #1 in our quiz
Garmin Forerunner 265
It is not the top pick for any standard quiz profile.
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