Between the Apex 2 Pro and Grit X2 Pro, the Apex 2 Pro comes out ahead in smartwatch mode and gps mode, while the Grit X2 Pro wins on ecg. Overall, the Apex 2 Pro scores 57.2 and the Grit X2 Pro scores 42.6 on our Mars Score.
Which should you buy?
The Apex 2 Pro is the clear pick on raw spec strength, leading by 14.6 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 Pro if you care most about smartwatch mode and gps mode. The biggest gaps in its favor are smartwatch mode, gps mode.
Pick the Grit X2 Pro if you care most about ecg. Its strongest claims are ecg.
Both ship with comparable multi-band gps, solar charging, so those specs don't separate the two — focus on the differences below.
Bottom line: the Apex 2 Pro 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 Pro wins
- ▲Smartwatch mode — 200.00% more. 30 days vs 10 days.
- ▲GPS mode — 74.42% more. 75 h vs 43 h.
Why Polar - Grit X2 Pro wins
- ▲Has ECG.
Spec comparison
GPS & Sensors
| Spec | Coros - Apex 2 Pro | Polar - Grit X2 Pro |
|---|---|---|
| Multi-band GPS | true | true |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | truelead |
| Pulse Ox | true | true |
Battery
| Spec | Coros - Apex 2 Pro | Polar - Grit X2 Pro |
|---|---|---|
| Smartwatch mode | 30 dayslead | 10 days |
| GPS mode | 75 hlead | 43 h |
| Solar charging | false | false |
Design
| Spec | Coros - Apex 2 Pro | Polar - Grit X2 Pro |
|---|---|---|
| Case size | 46.1 mm | 47.5 mmlead |
| Weight | 66 glead | 79 g |
| Water resistanceⓘ | 10 ATM | 10 ATM |
Frequently asked
Spec-level deep dives
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