Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Coros - Apex 2 | Garmin - Forerunner 265 |
|---|---|---|
| GPS mode | 45 h | 24 h |
| Smartwatch mode | 17 days | 13 days |
| Multi-band GPS | false | true |
Between the Apex 2 and Forerunner 265, the Apex 2 comes out ahead in gps mode / smartwatch mode, while the Forerunner 265 wins on multi-band gps. Overall, the Apex 2 scores 46.1 and the Forerunner 265 scores 69.5 on our Mars Score.
Which should you buy?
The Forerunner 265 is the clear pick on raw spec strength, leading by 23.4 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Apex 2 if you care most about gps mode / smartwatch mode. The biggest gaps in its favor are gps mode, smartwatch mode. The single most decisive one: GPS mode — 87.50% more. 45 h vs 24 h.
Pick the Forerunner 265 if you care most about multi-band gps. Its strongest claims are multi-band gps. The single most decisive one: Has Multi-band GPS.
Both ship with comparable solar charging, ecg, so those specs do not separate the two — focus on the differences below.
Bottom line: the Forerunner 265 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Coros - Apex 2 or Garmin - Forerunner 265?
Garmin - Forerunner 265 leads the current Mars Score by 23.4 points.The more useful decision is the trade-off behind that result: compare smartwatch mode, gps mode against the way you will actually use the product.
Choose Coros - Apex 2 if…
Coros - Apex 2 has the measurable edge on battery gps hours, battery smartwatch days.
Choose Garmin - Forerunner 265 if…
Garmin - Forerunner 265 has the measurable edge on has multiband gps.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Coros - Apex 2 wins
- ▲GPS mode — 87.50% more. 45 h vs 24 h.
- ▲Smartwatch mode — 30.77% more. 17 days vs 13 days.
Why Garmin - Forerunner 265 wins
- ▲Has Multi-band GPS.
Spec comparison
GPS & Sensors
| Spec | Coros - Apex 2 | Garmin - Forerunner 265 |
|---|---|---|
| Multi-band GPS | false | truelead |
| Barometric altimeter | truelead | false |
| Heart rate | true | true |
| ECG | false | false |
| Pulse Ox | true | true |
Battery
| Spec | Coros - Apex 2 | Garmin - Forerunner 265 |
|---|---|---|
| Smartwatch mode | 17 dayslead | 13 days |
| GPS mode | 45 hlead | 24 h |
| Solar charging | false | false |
Design
| Spec | Coros - Apex 2 | Garmin - Forerunner 265 |
|---|---|---|
| Case size | 43 mm | 46 mmlead |
| Weight | 53 g | 47 glead |
| Water resistanceⓘ | 5 ATM | 5 ATM |