Between the PACE 3 and Pacer Pro, the PACE 3 comes out ahead in smartwatch mode and gps mode, while the Pacer Pro wins on several specs. Overall, the PACE 3 scores 46.6 and the Pacer Pro scores 39.7 on our Mars Score.
Which should you buy?
The PACE 3 edges ahead on the Mars Score (46.6 vs 39.7), but the 6.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the PACE 3 if you care most about smartwatch mode and gps mode. The biggest gaps in its favor are smartwatch mode, gps mode, multi-band gps.
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 solar charging, ecg, so those specs don't separate the two — focus on the differences below.
Bottom line: the PACE 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Coros - PACE 3 wins
- ▲Smartwatch mode — 142.86% more. 17 days vs 7 days.
- ▲GPS mode — 8.57% more. 38 h vs 35 h.
- ▲Has Multi-band GPS.
Why Polar - Pacer Pro wins
- No decisive advantages.
Spec comparison
GPS & Sensors
| Spec | Coros - PACE 3 | Polar - Pacer Pro |
|---|---|---|
| Multi-band GPS | truelead | false |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | false |
| Pulse Ox | truelead | false |
Battery
| Spec | Coros - PACE 3 | Polar - Pacer Pro |
|---|---|---|
| Smartwatch mode | 17 dayslead | 7 days |
| GPS mode | 38 hlead | 35 h |
| Solar charging | false | false |
Design
| Spec | Coros - PACE 3 | Polar - Pacer Pro |
|---|---|---|
| Case size | 42 mm | 45 mmlead |
| Weight | 39 glead | 41 g |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Frequently asked
Spec-level deep dives
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