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 965 |
|---|---|---|
| GPS mode | 45 h | 31 h |
| Smartwatch mode | 17 days | 23 days |
| Multi-band GPS | false | true |
Between the Apex 2 and Forerunner 965, the Apex 2 comes out ahead in gps mode, while the Forerunner 965 wins on smartwatch mode / multi-band gps. Overall, the Apex 2 scores 46.1 and the Forerunner 965 scores 71.3 on our Mars Score.
Which should you buy?
The Forerunner 965 is the clear pick on raw spec strength, leading by 25.2 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. The biggest gaps in its favor are gps mode. The single most decisive one: GPS mode — 45.16% more. 45 h vs 31 h.
Pick the Forerunner 965 if you care most about smartwatch mode / multi-band gps. Its strongest claims are smartwatch mode, multi-band gps. The single most decisive one: Smartwatch mode — 35.29% more. 23 days vs 17 days.
Both ship with comparable solar charging, ecg, so those specs do not separate the two — focus on the differences below.
Bottom line: the Forerunner 965 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 965?
Garmin - Forerunner 965 leads the current Mars Score by 25.2 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.
Choose Garmin - Forerunner 965 if…
Garmin - Forerunner 965 has the measurable edge on battery smartwatch days, 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 — 45.16% more. 45 h vs 31 h.
Why Garmin - Forerunner 965 wins
- ▲Smartwatch mode — 35.29% more. 23 days vs 17 days.
- ▲Has Multi-band GPS.
Spec comparison
GPS & Sensors
| Spec | Coros - Apex 2 | Garmin - Forerunner 965 |
|---|---|---|
| Multi-band GPS | false | truelead |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | false |
| Pulse Ox | true | true |
Battery
| Spec | Coros - Apex 2 | Garmin - Forerunner 965 |
|---|---|---|
| Smartwatch mode | 17 days | 23 dayslead |
| GPS mode | 45 hlead | 31 h |
| Solar charging | false | false |
Design
| Spec | Coros - Apex 2 | Garmin - Forerunner 965 |
|---|---|---|
| Case size | 43 mm | 47 mmlead |
| Weight | 53 g | 53 g |
| Water resistanceⓘ | 5 ATM | 5 ATM |