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Head-to-head Updated

General Altimax Arctic 12 vs Toyo Observe GSi-6 HP — Compared

Relative Score (0–100): the weighted average of the categories below, each 60% road tests and 40% owner reviews (comfort 40/60). Based on 1 + 2 road tests and 31 + 14 owner reviews. How we score

Observe GSi-6 HP is ahead, 71–66

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Toyo Observe GSi-6 HP
Tire BToyo

Observe GSi-6 HP

Winter

± 7

Tests 69 · 2 tests Owners 73 · 14 reviews

Best test result: #5 of 20 in 2020 Nordic and Studded Winter Tyre Test (dry braking)

Category by category

Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.

  1. 50

    Dry

    Observe GSi-6 HP +25
    75
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · 1 / 1 tests4773
    Reviews found online5577

    Altimax Arctic 12: 60% × 47.2 + 40% × 55.2 = 50

    Observe GSi-6 HP: 60% × 73 + 40% × 77 = 75

  2. 69

    Wet

    Observe GSi-6 HP +6
    75
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · 1 / 2 tests6671
    Reviews found online7581

    Altimax Arctic 12: 60% × 65.9 + 40% × 74.7 = 69

    Observe GSi-6 HP: 60% × 71.5 + 40% × 80.8 = 75

  3. 77

    Snow

    Altimax Arctic 12 +12
    65
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · 1 / 2 tests7459
    Reviews found online8075

    Altimax Arctic 12: 60% × 73.9 + 40% × 80.4 = 77

    Observe GSi-6 HP: 60% × 59.4 + 40% × 74.5 = 65

  4. 65

    Comfort

    Observe GSi-6 HP +10
    75
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · 1 / 1 tests6877
    Reviews found online6374

    Altimax Arctic 12: 40% × 68.3 + 60% × 63.1 = 65

    Observe GSi-6 HP: 40% × 77.1 + 60% × 74.2 = 75

  5. 69

    Noise

    Observe GSi-6 HP +1
    70
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · 1 / 1 tests7272
    Reviews found online63≈ 67 (est.)

    Altimax Arctic 12: 60% × 72.4 + 40% × 63.1 = 69

    Observe GSi-6 HP: 60% × 71.7 + 40% × 66.5 (est.) = 70

    No owner ratings of noise for Observe GSi-6 HP. The owner half is the owners’ average (67): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  6. 71

    Treadwear

    Altimax Arctic 12 +9
    62
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score)≈ 69 (est.)≈ 64 (est.)
    Reviews found online7359

    Altimax Arctic 12: 60% × 68.9 (est.) + 40% × 73.2 = 71

    Observe GSi-6 HP: 60% × 63.8 (est.) + 40% × 58.6 = 62

    No road tests of treadwear for Altimax Arctic 12. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

    No road tests of treadwear for Observe GSi-6 HP. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.35).

  7. 67

    Handling (owners)

    Observe GSi-6 HP +9
    76
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Reviews found online6776
  8. –

    Efficiency

    No comparison
    66
    Why this score
    SourceAltimax Arctic 12Observe GSi-6 HP
    Professional tests (TWG score) · – / 1 tests–66
Scores at a glance
CategoryGeneral Altimax Arctic 12Toyo Observe GSi-6 HP
Relative Score 66 71
Dry 50 75
Wet 69 75
Snow 77 65
Comfort 65 75
Noise 69 70
Treadwear 71 62
Handling (owners) 67 76
Efficiency – 66

Higher is better. The Relative Score follows your weights below; category scores do not change.

Weight the categories that matter to you

Wet grip starts at “Important”. Treadwear starts at “Neutral” here: road tests measured it for at most one of the two tires, so it rests on owner reviews. Move the sliders and the scores update instantly.

Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Neutral
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost
Not important
NotLessNeutralImportantMost

Only one of the two tires has a score here, so this weight changes nothing in the head-to-head.

Recomputed
Headline score
± 7

Altimax Arctic 12

± 7

Observe GSi-6 HP

Only categories both tires have data for count toward the headline score.

The professional test results behind the scores

Per discipline: the average % of the best tire over every test both tires were in, and how many of those tests each one won. “Different tests” rows compare results from separate tests.

DisciplineCategoryAltimax Arctic 12Observe GSi-6 HPΔHead-to-head
Dry Braking Dry 81% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 97% #5/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Wet Braking Wet 76% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 81% #7/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Ice Braking Snow 84% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 79% #18/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Ice Traction Snow 91% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 57% #18/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Snow Braking Snow 75% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 99% #8/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Snow Handling Snow 90% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 98% #12/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Snow Handling (tester's mark) Snow 58% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 70% #13/20 · 2025 Studded, Friction and European Winter Tyre Test – Different tests
Comfort (tester's mark) Comfort 94% #9/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 80% #6/20 · 2025 Studded, Friction and European Winter Tyre Test – Different tests
Noise (tester's mark) Noise 94% #7/10 · 2026 Tire Rack All-Weather vs Winter Tyre Test 89% #10/20 · 2020 Nordic and Studded Winter Tyre Test – Different tests
Also published by the testers (not in the score)
Overall Ranking Overall #9/10 2026 Tire Rack All-Weather vs Winter Tyre Test #12/20 2025 Studded, Friction and European Winter Tyre Test – Different tests

Pros, cons & observations

Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.

Tire A Altimax Arctic 12

Pros

  • Outstanding grip and traction in heavy snow, slush, and ice
  • Excellent value and affordable price point compared to premium winter tires
  • Impressive tread life and long-term durability across multiple winter seasons

Cons

  • Noticeable road noise, which can increase as the tires wear
  • Slightly soft, squishy, or vague handling characteristics on dry pavement
  • Higher rolling resistance resulting in a minor decrease in fuel economy
All owner themes in the Altimax Arctic 12 review

Tire B Observe GSi-6 HP

Pros

  • Exceptional traction and stability in snow and slush
  • Impressive wet-weather performance and hydroplaning resistance
  • Remarkably quiet ride quality for a winter tire

Cons

  • Inconsistent tread life reports, with some users experiencing premature wear
  • Occasional reports of structural failure or tread separation
  • Slightly vague steering feel at lower speeds
All owner themes in the Observe GSi-6 HP review

Specs side by side

Attribute A · General Altimax Arctic 12 B · Toyo Observe GSi-6 HP
CategoryPremium Touring Winter tireWinter
Vehicle typePassenger Car / Crossover—
Sizes available3839
Rim diameters15″ – 19″16″ – 21″
Tread depth12/32″11 - 12/32″
SidewallBlackwallBlack Side Wall
Max pressure51 psi50 - 51 psi
Sizes in common1212

Which one should you actually buy?

General Altimax Arctic 12

Toyo Observe GSi-6 HP

Winner: Toyo Observe GSi-6 HP — better dry, comfort and handling. Pick the General Altimax Arctic 12 if snow and treadwear matter most to you.

Pick tire B You want the most grip on dry roads

Toyo Observe GSi-6 HP scores 75 vs 50 on dry.

Pick tire A You drive through snowy winters

General Altimax Arctic 12 scores 77 vs 65 on snow.

Pick tire B You want the most comfortable ride

Toyo Observe GSi-6 HP scores 75 vs 65 on comfort.

Pick tire A You want the longest tread life

General Altimax Arctic 12 scores 71 vs 62 on treadwear.

Tire A · General Altimax Arctic 12
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Tire B · Toyo Observe GSi-6 HP
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Altimax Arctic 12 or Observe GSi-6 HP?

Which is better in the wet, Altimax Arctic 12 or Observe GSi-6 HP?

Toyo Observe GSi-6 HP, 75 vs 69 on our wet score.

Which grips better on dry roads, Altimax Arctic 12 or Observe GSi-6 HP?

Toyo Observe GSi-6 HP, 75 vs 50 on our dry score.

Which is better in snow, Altimax Arctic 12 or Observe GSi-6 HP?

General Altimax Arctic 12, 77 vs 65 on our snow score.

Which is quieter, Altimax Arctic 12 or Observe GSi-6 HP?

Neither, by our numbers: 69 vs 70 on the noise score, within 3 points.

Which is more comfortable, Altimax Arctic 12 or Observe GSi-6 HP?

Toyo Observe GSi-6 HP, 75 vs 65 on our comfort score.

Which lasts longer, Altimax Arctic 12 or Observe GSi-6 HP?

General Altimax Arctic 12, 71 vs 62 on our treadwear score.

How do we compare tires?

Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.

Handling is the exception: road tests measure it inside the dry and wet scores, so its own row comes from owner ratings only and starts as less important.

Community buzz from Reddit and forums is shown for context only — it never changes the score. Full methodology