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Head-to-head Updated

Continental WinterContact TS 790 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 0 + 2 road tests and 5 + 14 owner reviews. How we score

Too close to call: WinterContact TS 790 74, Observe GSi-6 HP 73.

Check price on Amazon · WinterContact TS 790 Check price on Amazon · Observe GSi-6 HP
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Toyo Observe GSi-6 HP
Tire BToyo

Observe GSi-6 HP

Winter

± 6

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. 71

    Dry

    Observe GSi-6 HP +4
    75
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 1 tests≈ 70 (est.)73
    Reviews found online7377

    WinterContact TS 790: 60% × 69.9 (est.) + 40% × 72.6 = 71

    Observe GSi-6 HP: 60% × 73 + 40% × 76.9 = 75

    No road tests of dry for WinterContact TS 790. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.41).

  2. 78

    Wet

    WinterContact TS 790 +3
    75
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 2 tests≈ 76 (est.)71
    Reviews found online8181

    WinterContact TS 790: 60% × 76.4 (est.) + 40% × 81.1 = 78

    Observe GSi-6 HP: 60% × 71.5 + 40% × 80.7 = 75

    No road tests of wet for WinterContact TS 790. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.55).

  3. –

    Snow

    No comparison
    66
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 2 tests–60
    Reviews found online–75

    Observe GSi-6 HP: 60% × 59.5 + 40% × 74.7 = 66

  4. 72

    Comfort

    Observe GSi-6 HP +3
    75
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 1 tests≈ 70 (est.)77
    Reviews found online7374

    WinterContact TS 790: 40% × 69.5 (est.) + 60% × 72.9 = 72

    Observe GSi-6 HP: 40% × 76.6 + 60% × 73.8 = 75

    No road tests of comfort for WinterContact TS 790. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.20).

  5. –

    Noise

    No comparison
    69
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 1 tests–72
    Reviews found online–≈ 66 (est.)

    Observe GSi-6 HP: 60% × 71.6 + 40% × 66.3 (est.) = 69

    No owner ratings of noise for Observe GSi-6 HP. The owner half is the owners’ average (66): owners’ noise ratings barely follow the road tests, so the tests say nothing about how owners would rate it.

  6. 72

    Treadwear

    WinterContact TS 790 +10
    62
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score)≈ 70 (est.)≈ 64 (est.)
    Reviews found online7659

    WinterContact TS 790: 60% × 69.8 (est.) + 40% × 75.8 = 72

    Observe GSi-6 HP: 60% × 63.7 (est.) + 40% × 58.5 = 62

    No road tests of treadwear for WinterContact TS 790. The test half is estimated from the owner ratings, as far as owners and testers agree (correlation 0.36).

    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 0.36).

  7. 77

    Handling (owners)

    WinterContact TS 790 +2
    75
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Reviews found online7775
  8. –

    Efficiency

    No comparison
    66
    Why this score
    SourceWinterContact TS 790Observe GSi-6 HP
    Professional tests (TWG score) · – / 1 tests–66
Scores at a glance
CategoryContinental WinterContact TS 790Toyo Observe GSi-6 HP
Relative Score 74 73
Dry 71 75
Wet 78 75
Snow – 66
Comfort 72 75
Noise – 69
Treadwear 72 62
Handling (owners) 77 75
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

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

Less important
NotLessNeutralImportantMost
Less important
NotLessNeutralImportantMost

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

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
± 8

WinterContact TS 790

± 6

Observe GSi-6 HP

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

Pros, cons & observations

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

Tire A WinterContact TS 790

Pros

  • Exceptional tread longevity and durability
  • Strong grip and stability in wet conditions
  • High level of ride comfort

Cons

  • Limited performance in heavy or deep snow conditions
  • Not optimized for severe winter climates
All owner themes in the WinterContact TS 790 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 · Continental WinterContact TS 790 B · Toyo Observe GSi-6 HP
CategoryWinterWinter
Vehicle typePassenger Car / Crossover—
Sizes available139
Rim diameters15″16″ – 21″
Tread depth—11 - 12/32″
Sidewall—Black Side Wall
Max pressure—50 - 51 psi

Which one should you actually buy?

Continental WinterContact TS 790

Toyo Observe GSi-6 HP

Too close to call: Continental WinterContact TS 790 and Toyo Observe GSi-6 HP are within 2 points overall. Continental WinterContact TS 790 is stronger on treadwear and wet. Toyo Observe GSi-6 HP is stronger on dry and comfort. Continental WinterContact TS 790 rests on little evidence so far (0 tests, 5 reviews), so read this result as provisional.

Pick tire A You want the longest tread life

Continental WinterContact TS 790 scores 72 vs 62 on treadwear.

Pick tire B You want the most grip on dry roads

Toyo Observe GSi-6 HP scores 75 vs 71 on dry.

Pick tire A Your priority is wet-weather safety

Continental WinterContact TS 790 scores 78 vs 75 on wet.

Pick tire B You want the most comfortable ride

Toyo Observe GSi-6 HP scores 75 vs 72 on comfort.

Tire A · Continental WinterContact TS 790
Check price on Amazon
Tire B · Toyo Observe GSi-6 HP
Check price on Amazon

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WinterContact TS 790 or Observe GSi-6 HP?

Which is better in the wet, WinterContact TS 790 or Observe GSi-6 HP?

Continental WinterContact TS 790, 78 vs 75 on our wet score.

Which grips better on dry roads, WinterContact TS 790 or Observe GSi-6 HP?

Toyo Observe GSi-6 HP, 75 vs 71 on our dry score.

Which is more comfortable, WinterContact TS 790 or Observe GSi-6 HP?

Toyo Observe GSi-6 HP, 75 vs 72 on our comfort score.

Which lasts longer, WinterContact TS 790 or Observe GSi-6 HP?

Continental WinterContact TS 790, 72 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