Between the Apex 2 and Pacer Pro, the Apex 2 comes out ahead in smartwatch mode and gps mode, while the Pacer Pro wins on several specs. Overall, the Apex 2 scores 47.2 and the Pacer Pro scores 39.7 on our Mars Score.
Which should you buy?
The Apex 2 edges ahead on the Mars Score (47.2 vs 39.7), but the 7.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Apex 2 if you care most about smartwatch mode and gps mode. The biggest gaps in its favor are smartwatch mode, gps mode.
The Pacer Pro similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable multi-band gps, solar charging, ecg, so those specs don't separate the two — focus on the differences below.
Bottom line: the Apex 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Coros - Apex 2 wins
- ▲Smartwatch mode — 142.86% more. 17 days vs 7 days.
- ▲GPS mode — 28.57% more. 45 h vs 35 h.
Why Polar - Pacer Pro wins
- No decisive advantages.
Spec comparison
GPS & Sensors
| Spec | Coros - Apex 2 | Polar - Pacer Pro |
|---|---|---|
| Multi-band GPS | false | false |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | false |
| Pulse Ox | truelead | false |
Battery
| Spec | Coros - Apex 2 | Polar - Pacer Pro |
|---|---|---|
| Smartwatch mode | 17 dayslead | 7 days |
| GPS mode | 45 hlead | 35 h |
| Solar charging | false | false |
Design
| Spec | Coros - Apex 2 | Polar - Pacer Pro |
|---|---|---|
| Case size | 43 mm | 45 mmlead |
| Weight | 53 g | 41 glead |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Frequently asked
Spec-level deep dives
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