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Toyo Observe GSi-6 HP vs Continental WinterContact TS 870 P — 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 2 + 30 road tests and 14 + 31 owner reviews. How we score

WinterContact TS 870 P is ahead, 82–71

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Toyo Observe GSi-6 HP
Tire AToyo

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)

Continental WinterContact TS 870 P
Tire BContinental

WinterContact TS 870 P

Winter

± 4

Tests 82 · 30 tests Owners 80 · 31 reviews

Best test result: #1 of 20 in 2023 Auto Bild Winter Tyre Test (dry handling)

Category by category

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

  1. 75

    Dry

    WinterContact TS 870 P +6
    81
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 1 / 24 tests7383
    Reviews found online7779

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

    WinterContact TS 870 P: 60% × 83.4 + 40% × 78.6 = 81

  2. 75

    Wet

    WinterContact TS 870 P +16
    91
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 2 / 30 tests7194
    Reviews found online8186
    Straight Aquaplaning (% of best) · 1 shared test · wins 0–183%100%
    Wet Handling (tester's mark) (% of best) · 1 shared test · wins 0–160%80%

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

    WinterContact TS 870 P: 60% × 94.3 + 40% × 86 = 91

  3. 65

    Snow

    WinterContact TS 870 P +13
    78
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 2 / 29 tests5980
    Reviews found online7576
    Ice Handling (tester's mark) (% of best) · 1 shared test · wins 1–040%30%
    Snow Handling (tester's mark) (% of best) · 1 shared test · wins 0–070%70%

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

    WinterContact TS 870 P: 60% × 79.5 + 40% × 75.6 = 78

  4. 75

    Comfort

    WinterContact TS 870 P +11
    86
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 1 / 7 tests7793
    Reviews found online7481
    Comfort (tester's mark) (% of best) · 1 shared test · wins 0–080%80%

    Observe GSi-6 HP: 40% × 77.1 + 60% × 74.3 = 75

    WinterContact TS 870 P: 40% × 93.4 + 60% × 81 = 86

  5. 70

    Noise

    WinterContact TS 870 P +3
    73
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 1 / 21 tests7278
    Reviews found online≈ 67 (est.)≈ 67 (est.)

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

    WinterContact TS 870 P: 60% × 77.7 + 40% × 66.5 (est.) = 73

    No owner ratings of noise for Observe GSi-6 HP or WinterContact TS 870 P. 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. 62

    Treadwear

    WinterContact TS 870 P +13
    75
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · – / 7 tests≈ 64 (est.)71
    Reviews found online5980

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

    WinterContact TS 870 P: 60% × 70.7 + 40% × 80.3 = 75

    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. 76

    Handling (owners)

    WinterContact TS 870 P +7
    83
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Reviews found online7683
  8. 66

    Efficiency

    WinterContact TS 870 P +21
    87
    Why this score
    SourceObserve GSi-6 HPWinterContact TS 870 P
    Professional tests (TWG score) · 1 / 23 tests6687
    Fuel Consumption (% of best) · 1 shared test · wins 1–096%96%
Scores at a glance
CategoryToyo Observe GSi-6 HPContinental WinterContact TS 870 P
Relative Score 71 82
Dry 75 81
Wet 75 91
Snow 65 78
Comfort 75 86
Noise 70 73
Treadwear 62 75
Handling (owners) 76 83
Efficiency 66 87

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
Recomputed
Headline score
± 7

Observe GSi-6 HP

± 4

WinterContact TS 870 P

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.

In the overall rankings of 1 tests that ran both, Toyo Observe GSi-6 HP finished ahead 0 times and Continental WinterContact TS 870 P 1 times.

DisciplineCategoryObserve GSi-6 HPWinterContact TS 870 PΔHead-to-head
Straight Aquaplaning Wet 83% 100% −16.6 0–1 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Wet Handling (tester's mark) Wet 60% 80% −20.0 0–1 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Ice Handling (tester's mark) Snow 40% 30% +10.0 1–0 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Snow Handling (tester's mark) Snow 70% 70% 0.0 0–0 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Comfort (tester's mark) Comfort 80% 80% 0.0 0–0 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Fuel Consumption Efficiency 96% 96% +0.4 1–0 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18
Also published by the testers (not in the score)
Overall Ranking Overall #12/20 #3/20 – 0–1 in 1 shared test Newest: 2025 Studded, Friction and European Winter Tyre Test · 235/45 R18

Pros, cons & observations

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

Tire A 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

Tire B WinterContact TS 870 P

Pros

  • Exceptionally low noise levels and high ride comfort
  • Outstanding wet weather and slush performance, cutting through heavy rain effortlessly
  • Balanced dry and cold-weather handling with impressive cornering stability

Cons

  • Higher price point compared to some competitors
  • Steering response and initial stiffness are slightly softer and less sporty than dedicated summer tires or some rivals
  • Snow and ice traction can feel less exceptional or borderline inadequate for a small subset of users
All owner themes in the WinterContact TS 870 P review

Specs side by side

Attribute A · Toyo Observe GSi-6 HP B · Continental WinterContact TS 870 P
CategoryWinterWinter
Vehicle type—Passenger Car / Crossover
Sizes available39121
Rim diameters16″ – 21″16″ – 23″
Tread depth11 - 12/32″—
SidewallBlack Side Wall—
Max pressure50 - 51 psi—
Sizes in common2424

Which one should you actually buy?

Toyo Observe GSi-6 HP

Continental WinterContact TS 870 P

Winner: Continental WinterContact TS 870 P — better efficiency, wet and snow. It leads or ties in every category we score.

Pick tire B You want lower fuel or energy use

Continental WinterContact TS 870 P scores 87 vs 66 on efficiency.

Pick tire B Your priority is wet-weather safety

Continental WinterContact TS 870 P scores 91 vs 75 on wet.

Pick tire B You drive through snowy winters

Continental WinterContact TS 870 P scores 78 vs 65 on snow.

Pick tire B You want the longest tread life

Continental WinterContact TS 870 P scores 75 vs 62 on treadwear.

Tire A · Toyo Observe GSi-6 HP
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Tire B · Continental WinterContact TS 870 P
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Observe GSi-6 HP or WinterContact TS 870 P?

Which is better in the wet, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 91 vs 75 on our wet score.

Which grips better on dry roads, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 81 vs 75 on our dry score.

Which is better in snow, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 78 vs 65 on our snow score.

Which is quieter, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 73 vs 70 on our noise score.

Which is more comfortable, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 86 vs 75 on our comfort score.

Which lasts longer, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 75 vs 62 on our treadwear score.

Which rolls more easily, Observe GSi-6 HP or WinterContact TS 870 P?

Continental WinterContact TS 870 P, 87 vs 66 on our efficiency 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