Hankook iON FlexClimate vs Hankook Kinergy 4S: the full picture
This comparison is built only from published independent tests — no manufacturer claims and no sponsored reviews. Between them, the Hankook iON FlexClimate and Hankook Kinergy 4S appear in 6 tests, though they have not yet met head-to-head in the same test. 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 Hankook iON FlexClimate performs. It takes the win in wet, dry, snow, efficiency. Its overall Tire Lab Score is 91/100, based on 2 tests.
How the Hankook Kinergy 4S performs. It takes the win in noise / comfort, mileage. Its overall Tire Lab Score is 85/100, 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 Hankook iON FlexClimate is the stronger all-round choice, leading in wet and Tire Lab Score. The Hankook Kinergy 4S still wins on noise / comfort, making it the right pick if that matters most to you.
Which one should you buy?
Choose Hankook iON FlexClimate if
- You prioritise wet
- You prioritise dry
- You prioritise snow
- You prioritise noise / comfort
- You prioritise mileage
Test profile
| Metric | Hankook iON FlexClimate | Hankook Kinergy 4S |
|---|---|---|
| Segment | Touring | Touring |
| Type | All Season | All Season |
| Tests used | 2 | 4 |
| Best rank | #1 | #1 |
| Avg rank | 1.8 | 7.0 |
| Latest test | 2025 | 2025 |
| Tire Lab Score | 91.3 | 85 |
Tire Lab Score
Hankook iON FlexClimate
Hankook Kinergy 4S
Performance overview
Category-by-category results
| Category | Hankook iON FlexClimate | Hankook Kinergy 4S | Winner |
|---|---|---|---|
| 💧Wet | Avg rank 1.0 5 | Avg rank 8.0 | Hankook iON FlexClimate |
| ☀️Dry | Avg rank 1.3 21 | Avg rank 7.0 1 | Hankook iON FlexClimate |
| ❄️Snow | Avg rank 2.5 13 | Avg rank 6.0 1 | Hankook iON FlexClimate |
| 🔇Noise / Comfort | No data | Avg rank 6.0 11 | Hankook Kinergy 4S |
| 📏Mileage | No data | Avg rank 7.0 | Hankook Kinergy 4S |
| 🔋Efficiency | Avg rank 2.0 1 | Avg rank 3.3 11 | Hankook iON FlexClimate |
💧 Wet: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook iON FlexClimate wins this category with an average rank of 1.0, compared to 8.0 for the Hankook Kinergy 4S.
☀️ Dry: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook iON FlexClimate wins this category with an average rank of 1.3, compared to 7.0 for the Hankook Kinergy 4S.
❄️ Snow: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook iON FlexClimate wins this category with an average rank of 2.5, compared to 6.0 for the Hankook Kinergy 4S.
🔇 Noise / Comfort: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook Kinergy 4S wins this category with an average rank of 6.0, compared to no data for the Hankook iON FlexClimate.
📏 Mileage: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook Kinergy 4S wins this category with an average rank of 7.0, compared to no data for the Hankook iON FlexClimate.
🔋 Efficiency: Hankook iON FlexClimate vs Hankook Kinergy 4S
The Hankook iON FlexClimate wins this category with an average rank of 2.0, compared to 3.3 for the Hankook Kinergy 4S.
Frequently asked questions
Which is better in the wet, Hankook iON FlexClimate or Hankook Kinergy 4S?
Across independent wet-braking tests, the Hankook iON FlexClimate ranks higher on average than the Hankook Kinergy 4S.
Which has shorter dry braking distance?
The Hankook iON FlexClimate averages a better dry-braking rank than the Hankook Kinergy 4S across the tests where both appeared.
Which tire is quieter and more comfortable?
On combined noise and comfort metrics, the Hankook Kinergy 4S ranks better than the Hankook iON FlexClimate.
Which tire lasts longer?
Based on wear and abrasion testing, the Hankook Kinergy 4S shows better mileage performance than the Hankook iON FlexClimate.
How many tests were used in this comparison?
Hankook iON FlexClimate appears in 2 independent tests, Hankook Kinergy 4S in 4.
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Data aggregated from independent testing organizations including ADAC, Auto Bild, TCS, and Auto Motor und Sport. Read our methodology →