Barum Polaris 5 vs Cooper Discoverer Winter: the full picture
This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the Barum Polaris 5 and Cooper Discoverer Winter appear in 16 tests, 1 of which put both tires on the same track on the same day. Head-to-head results carry the most weight here, because surface, weather and test car all change between events and make raw numbers from different tests hard to compare directly.
How the Barum Polaris 5 performs. It takes the win in ice, mileage. Its overall Tire Lab Score is 90/100, based on 12 tests.
How the Cooper Discoverer Winter performs. It takes the win in wet, dry, snow, noise / comfort, efficiency. Its overall Tire Lab Score is 91/100, based on 4 tests.
What this means for you. Category wins matter more than the overall score when your driving is weighted toward one condition — a wet-climate commuter should follow the wet braking column, while a high-mileage driver should follow wear and rolling resistance. Also check that both tires are actually offered in your size and load rating: performance can shift between sizes, and availability differs between the European and North American markets.
Verdict
The Cooper Discoverer Winter is the stronger all-round choice, leading in wet and Tire Lab Score. The Barum Polaris 5 still wins on ice, making it the right pick if that matters most to you.
Which one should you buy?
- You prioritise ice
- You prioritise mileage
Choose Cooper Discoverer Winter if
- You prioritise wet
- You prioritise dry
- You prioritise snow
Test profile
| Metric | Barum Polaris 5 | Cooper Discoverer Winter |
|---|---|---|
| Segment | Winter | Winter |
| Type | Winter | Winter |
| Tests used | 12 | 4 |
| Best rank | #1 | #1 |
| Avg rank | 13.4 | 7.6 |
| Latest test | 2024 | 2022 |
| Tire Lab Score | 89.7 | 90.5 |
Tire Lab Score
Barum Polaris 5
Cooper Discoverer Winter
Performance overview
Category-by-category results
| Category | Barum Polaris 5 | Cooper Discoverer Winter | Winner |
|---|---|---|---|
| 💧Wet | Avg rank 14.4 11 | Avg rank 7.2 11 | Cooper Discoverer Winter |
| ☀️Dry | Avg rank 10.5 2 | Avg rank 7.2 | Cooper Discoverer Winter |
| ❄️Snow | Avg rank 12.5 1 | Avg rank 7.1 | Cooper Discoverer Winter |
| 🧊Ice | Avg rank 8.5 | No data | Barum Polaris 5 |
| 🔇Noise / Comfort | Avg rank 9.4 1 | Avg rank 6.8 2 | Cooper Discoverer Winter |
| 📏Mileage | Avg rank 9.0 | Avg rank 11.0 | Barum Polaris 5 |
| 🔋Efficiency | Avg rank 15.2 | Avg rank 3.7 1 | Cooper Discoverer Winter |
Tests used in this comparison
Both tires were measured head-to-head in these 1 independent test:
💧 Wet: Barum Polaris 5 vs Cooper Discoverer Winter
The Cooper Discoverer Winter wins this category with an average rank of 7.2, compared to 14.4 for the Barum Polaris 5.
☀️ Dry: Barum Polaris 5 vs Cooper Discoverer Winter
The Cooper Discoverer Winter wins this category with an average rank of 7.2, compared to 10.5 for the Barum Polaris 5.
❄️ Snow: Barum Polaris 5 vs Cooper Discoverer Winter
The Cooper Discoverer Winter wins this category with an average rank of 7.1, compared to 12.5 for the Barum Polaris 5.
🧊 Ice: Barum Polaris 5 vs Cooper Discoverer Winter
The Barum Polaris 5 wins this category with an average rank of 8.5, compared to no data for the Cooper Discoverer Winter.
🔇 Noise / Comfort: Barum Polaris 5 vs Cooper Discoverer Winter
The Cooper Discoverer Winter wins this category with an average rank of 6.8, compared to 9.4 for the Barum Polaris 5.
📏 Mileage: Barum Polaris 5 vs Cooper Discoverer Winter
The Barum Polaris 5 wins this category with an average rank of 9.0, compared to 11.0 for the Cooper Discoverer Winter.
🔋 Efficiency: Barum Polaris 5 vs Cooper Discoverer Winter
The Cooper Discoverer Winter wins this category with an average rank of 3.7, compared to 15.2 for the Barum Polaris 5.
Frequently asked questions
Which is better in the wet, Barum Polaris 5 or Cooper Discoverer Winter?
Across independent wet-braking tests, the Cooper Discoverer Winter ranks higher on average than the Barum Polaris 5.
Which has shorter dry braking distance?
The Cooper Discoverer Winter averages a better dry-braking rank than the Barum Polaris 5 across the tests where both appeared.
Which tire is quieter and more comfortable?
On combined noise and comfort metrics, the Cooper Discoverer Winter ranks better than the Barum Polaris 5.
Which tire lasts longer?
Based on wear and abrasion testing, the Barum Polaris 5 shows better mileage performance than the Cooper Discoverer Winter.
How many tests were used in this comparison?
Barum Polaris 5 appears in 12 independent tests, Cooper Discoverer Winter in 4, with 1 head-to-head tests where both were measured.
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Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →