Between the VERTIX 2S and Ocean, the VERTIX 2S comes out ahead in smartwatch mode and gps mode, while the Ocean wins on several specs. Overall, the VERTIX 2S scores 66.9 and the Ocean scores 41.3 on our Mars Score.
Which should you buy?
The VERTIX 2S is the clear pick on raw spec strength, leading by 25.6 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 VERTIX 2S if you care most about smartwatch mode and gps mode. The biggest gaps in its favor are smartwatch mode, gps mode, solar charging.
The Ocean 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, ecg, so those specs don't separate the two — focus on the differences below.
Bottom line: the VERTIX 2S is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Coros - VERTIX 2S wins
- ▲Smartwatch mode — 320.00% more. 42 days vs 10 days.
- ▲GPS mode — 293.33% more. 118 h vs 30 h.
- ▲Has Solar charging.
Why Suunto - Ocean wins
- No decisive advantages.
Spec comparison
GPS & Sensors
| Spec | Coros - VERTIX 2S | Suunto - Ocean |
|---|---|---|
| Multi-band GPS | true | true |
| Barometric altimeter | true | true |
| Heart rate | true | true |
| ECG | false | false |
| Pulse Ox | true | true |
Battery
| Spec | Coros - VERTIX 2S | Suunto - Ocean |
|---|---|---|
| Smartwatch mode | 42 dayslead | 10 days |
| GPS mode | 118 hlead | 30 h |
| Solar charging | truelead | false |
Design
| Spec | Coros - VERTIX 2S | Suunto - Ocean |
|---|---|---|
| Case size | 50.3 mmlead | 49 mm |
| Weight | 84 g | 78 glead |
| Water resistanceⓘ | 10 ATM | 30 ATMlead |
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.