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Toyo Observe S 944 View Gallery (1)
175-235/40-70 R14-20 74 sizes 2019 Winter rated

Toyo Observe S 944

Toyo Tires Touring Winter

The Toyo Observe S 944 is a Touring Winter tire designed to be fitted to Passenger Cars.

8.3
Tire Reviews Score Based on Professional Tests
High Confidence View Breakdown
Dry Grip
0%
Wet Grip
0%
Road Feedback
0%
Handling
0%
Wear
0%
Comfort
0%
Buy again
0%
Snow Grip
0%
Ice Grip
0%
10 Tests (avg: 15th)
Toyo Observe S 944

Toyo Observe S 944

Winter Mid-Range
BETA
8.3 / 10
Based on Professional Tests · High Confidence · Updated 23 Feb 2026

The Tire Reviews Score is the most comprehensive tire scoring system available. It aggregates professional test data from multiple independent publications, user reviews, and consistency analysis using Bayesian statistical methods, weighted normalisation, and recency-adjusted scoring to produce a single, reliable performance rating.

Learn more about our methodology
Category Scores
Value
81.8
0.42x / 9 tests
Comfort
78.6
0.32x / 4 tests
Wet
70.6
1.93x / 20 tests
Snow
68.8
1.5x / 16 tests
Dry
68
1.13x / 8 tests
Cross-Category Performance

Cross-category scores are derived metrics that combine data from multiple test disciplines to evaluate real-world performance characteristics.

Traction
76.7
4 tests
Braking
70.9
17 tests
Handling
63.8
12 tests
Score Components
Professional Tests
Weight: 80%
Tests: 10
Publications: 4
Period: 2020 - 2023
User Reviews
Weight: 15%
Reviews: 0
Avg Rating: 0%
Min Required: 5
Consistency
Weight: 5%
Score Std Dev: 0.32
History Points: 10
Methodology & Configuration
Scoring Process
  1. Collect Test Data: Gather results from professional tire tests across multiple publications. Minimum 1 test(s) required.
  2. Normalize Positions: Convert test positions to percentile scores using exponential weighting (factor: 1.2).
  3. Apply Recency Weighting: More recent tests are weighted higher with a decay rate of 0.95.
  4. Incorporate User Reviews: Factor in user review data (minimum 5 reviews). Weight: 15%.
  5. Bayesian Smoothing: Apply Bayesian prior (score: 7, weight: 1.5) to prevent extreme scores with limited data.
  6. Calculate Final Score: Combine all components using normalization factor of 1.1. Max score with limited data: 9.5.
Component Weights
Test Data
80%
User Reviews
15%
Consistency
5%
All Configuration Parameters
ParameterValueDescription
safety_weight 0.7 Weight multiplier for safety-related metrics
performance_weight 0.55 Weight multiplier for performance metrics
comfort_weight 0.4 Weight multiplier for comfort metrics
value_weight 0.45 Weight multiplier for value-for-money metrics
user_reviews_weight 0.15 How much user reviews contribute to the final score
test_data_weight 0.8 How much professional test data contributes to the final score
consistency_weight 0.05 How much score consistency contributes to the final score
recency_decay_rate 0.95 Rate at which older test results lose influence (higher = slower decay)
min_test_count 1 Minimum number of professional tests required
min_review_count 5 Minimum number of user reviews required
score_version 1.9 Current version of the scoring algorithm
score_normalization_factor 1.1 Factor used to normalize raw scores to the 0-10 scale
confidence_factor_weight 0.2 How much data confidence affects the final score
position_penalty_weight 0.2 Penalty applied for poor test positions
gap_penalty_threshold 12 Score gap (%) that triggers additional penalties
min_metrics_count 2 Minimum number of test metrics needed per test
limited_data_threshold 2 Number of tests below which data is considered limited
single_test_penalty 0.75 Score multiplier when only one test is available
critical_metric_penalty 0.7 Penalty for poor performance on critical safety metrics
critical_metric_threshold 70 Score below which a critical metric penalty applies
position_exponential_factor 1.2 Exponent used to amplify position-based scoring
position_exponential_threshold 0.9 Position percentile below which exponential scoring applies
gap_multiplier_critical 3 Multiplier for critical gap penalties
max_category_weight 2 Maximum weight any single category can have
max_score_limited_data 9.5 Score cap when data is limited
bayesian_prior_weight 1.5 Weight of the Bayesian prior in smoothing
bayesian_prior_score 7 Prior score used for Bayesian smoothing
evidence_test_multiplier 1.9 Multiplier for test evidence in confidence calculation
evidence_metric_divisor 3 Divisor for metric count in evidence calculation
evidence_review_divisor 10 Divisor for review count in evidence calculation
combined_penalty_floor 0.2
Data Sources
TestPublicationDateSizePositionMetrics
2023 Auto Bild Winter Tire Test Auto Bild 2023 225/45 R18 15/22 15 metrics
2023 Winter Tire Test 54 Set Braking Test Auto Bild 2023 225/45 R18 13/54 2 metrics
2022 Auto Bild SUV Winter Tire Test Auto Bild Allrad 2022 225/45 R19 7/10 14 metrics
2022 Winter Tire Market Overview Auto Bild 2022 215/55 R17 28/57 2 metrics
2022 ADAC SUV Winter Tire Test - 215/60 R16 ADAC 2022 215/60 R16 10/17 0 metrics
2021 AMS Winter Tire Test Auto Motor Und Sport 2021 195/55 R16 10/10 12 metrics
2021 ADAC 17 Inch Winter Tire Test ADAC 2021 225/50 R17 12/18 0 metrics
2021 Winter Tire Market Overview Auto Bild 2021 205/55 R16 36/49 1 metrics
2020 Auto Bild SUV Winter Tire Test Auto Bild 2020 225/55 R17 6/11 11 metrics
2020 ADAC Winter Tire Test - 205/55 R16 ADAC 2020 205/55 R16 10/15 0 metrics
All Tests
View Test Results
10
Tests
15th
Average
6th
Best
36th
Worst
Latest Tire Test Results
2023 Winter Tire Test 54 Set Braking Test
225/45 R18 • 2023
13th/54
2023 Auto Bild Winter Tire Test
225/45 R18 • 2023
15th/22
High traction and short braking distances on snow, decent comfort, good mileage.
Moderate side guidance on snow and wet roads.
2022 ADAC SUV Winter Tire Test - 215/60 R16
215/60 R16 • 2022
10th/17
Good on dry roads, good on ice.
Highest fuel consumption, weaknesses on snow and wet roads (devaluation.)
The TOYO TIRES Observe S944 shows good properties on dry roads, on ice and in wear resistance. In the wet and on snow, however, it performs below average compared to the rest of the test field, which leads to a satisfactory final rating. Overall, the TOYO Observe S944 is still classified as "recommended".
View Test Results
Size Fuel Wet Noise
14 inch
175/65 R14 86 T XL D B 70
175/65 R14 86 T XL E B 70
175/65 R14 86 T XL D B 70
15 inch
185/65 R15 92 H XL E B 70
185/65 R15 92 H XL E B 70
195/65 R15 91 H D B 71
195/65 R15 95 T XL D B 71
195/65 R15 91 H D B 71
195/55 R15 89 H XL E B 71
16 inch
205/55 R16 91 H D B 69
205/55 R16 94 V XL D B 71
205/55 R16 91 H D B 69
215/70 R16 104 H XL D B 71
215/70 R16 104 H XL D C 71
215/60 R16 99 H XL D B 71
205/60 R16 96 H XL D B 71
17 inch
225/45 R17 94 V XL D B 71
225/50 R17 98 V XL D B 71
225/50 R17 98 V XL D B 71
225/50 R17 98 V XL D B 71
205/50 R17 93 V XL D B 71
225/45 R17 94 V XL E B 71
225/45 R17 94 V XL D B 71
215/45 R17 91 H XL E B 71
225/60 R17 103 V XL D B 71
215/55 R17 98 V XL D B 71
215/55 R17 98 V XL D B 71
18 inch
225/40 R18 92 W XL D B 71
225/40 R18 92 W XL E B 71
225/40 R18 92 W XL D B 71
View All Sizes and EU Label Scores for the Toyo Observe S 944 >>

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