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Tested using Methodology v0.15
Updated Sep 03, 2026 03:04 PM
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Tested using Methodology v0.15
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Adidas.com
Heel Stack Height
36.7 mm
Weight
255.0 g (8.99 oz)
Heel-To-Toe Drop
6.5 mm
Plate
None
Heel Stack Height
38.2 mm
Weight
305.5 g (10.78 oz)
Heel-To-Toe Drop
7.0 mm
Plate
None
Our Verdict
adidas Adizero Pacer
adidas Questar 4
The adidas Adizero Pacer and adidas Questar 4 are two entry-level budget trainers from the German brand. The Questar 4 is the better daily trainer overall, thanks to its more cushioned, stable ride, making it the better choice for most runners. The Pacer isn't far behind, though, and its lower weight makes it worth considering if you can find it for substantially less.
Variants
- Adizero Pacer (Black/White/Carbon - (Men - US 9))
- Adizero Pacer (Alumina/Arctic Fusion/White - (Men - US 9))
- Questar 4 (Cloud White/Iron Metallic/Lucid Tangerine - (Men - US 9))
Main Differences for
Half/Full Marathon Racing
Half/Full Marathon Racing
Threshold
Half/Full Marathon Racing
5.8
5.9
Weight
6.2
4.1
Heel Stack Height
36.7 mm
38.2 mm
Forefoot Bending Energy Return
0.8
3.7
Full Comparison
Design
Weight
6.2
4.1
Right Shoe Weight Photo
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Left Shoe Weight Photo
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Weight
255.0 g (8.99 oz)
305.5 g (10.78 oz)
Stack Heights
Stack Height Photo
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Heel Stack Height
36.7 mm
38.2 mm
Forefoot Stack Height
30.2 mm
31.2 mm
Heel-To-Toe Drop
6.5 mm
7.0 mm
Advertised Heel-To-Toe Drop
6.0 mm
6.0 mm
External Shape
3D Model Full Shoe
Preview 3D
Preview 3D
Outsole Heel Width
85 mm (3.3")
92 mm (3.6")
Outsole Arch Width
67 mm (2.6")
75 mm (3.0")
Outsole Forefoot Width
115 mm (4.5")
111 mm (4.4")
Heel Width-To-Stack Ratio
2.32
2.41
Forefoot Width-To-Stack Ratio
3.81
3.56
Internal Shape
3D Model Internal
Preview 3D
Preview 3D
Internal Length
277 mm (10.9")
277 mm (10.9")
Internal Heel Width
61 mm (2.4")
61 mm (2.4")
Internal Forefoot Width
94 mm (3.7")
98 mm (3.9")
Wide Sizing Available
No
No
Forefoot Fit: Width
9.7
8.6
Forefoot Width Photo
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Ball-Of-Foot TTS Deviation
0.3 mm (0.012")
5.9 mm (0.232")
Toe TTS Deviation
-1.8 mm (-0.070")
0.7 mm (0.026")
Forefoot Fit: Height
6.5
5.5
Forefoot Height Photo
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Toe TTS Deviation
-4.1 mm (-0.163")
-5.3 mm (-0.210")
Arch Fit: Width
10
9.9
Arch Fit Photo
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Arch Width TTS Deviation
0.5 mm (0.019")
1.4 mm (0.054")
Length Fit
10
10
Toe Clearance Photo
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Heel Rocker Geometry
6.4
7.5
Heel Rocker Photo
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Heel Spring
17 mm (0.7")
21 mm (0.8")
Heel Apex Position
20.3%
17.6%
Heel Rocker Angle
15.8°
22.0°
Forefoot Rocker Geometry
5.9
7.1
Forefoot Rocker Photo
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Toe Spring
43 mm (1.7")
49 mm (1.9")
Toe Apex Position
59.5%
66.2%
Forefoot Rocker Angle
15.8°
26.1°
Foam
Primary Foam Picture
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Secondary Foam Picture
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Primary Foam Name
Lightstrike
Cloudfoam+
Primary Foam Type
EVA
EVA
Secondary Foam Name
N/A
N/A
Secondary Foam Type
No Secondary Foam
No Secondary Foam
Laces
Laces Picture
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Lace Type
Flat
Flat
Width
6.0 mm (0.2")
6.0 mm (0.2")
Thickness
1.8 mm (0.1")
2.0 mm (0.1")
Stretch
16.5%
7.5%
Other Features
Other Features Photo
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Tongue Gusset Type
Non-gusseted
Non-gusseted
Plate
None
None
Performance
Heel Compression Energy Return
0.8
1.1
Heel Compression Video
Heel Energy Return
Preview Graph
Preview Graph
Heel Energy Return
63.0%
65.1%
Forefoot Compression Energy Return
1.4
2.2
Forefoot Compression Video
Forefoot Energy Return
Preview Graph
Preview Graph
Forefoot Energy Return
66.4%
68.1%
Heel Cushioning
6.4
6.7
Heel Cushioning Picture
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Heel Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 550N
2.67 J
2.54 J
Energy Absorbed At 1100N
8.14 J
8.65 J
Energy Absorbed At 1900N
14.63 J
15.47 J
Forefoot Cushioning
6.7
7.3
Forefoot Cushioning Picture
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Forefoot Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 800N
4.02 J
4.34 J
Energy Absorbed At 1300N
7.17 J
7.92 J
Energy Absorbed At 2050N
10.68 J
11.87 J
Heel Firmness
9.3
9.2
Heel Firmness Graph
Preview Graph
Preview Graph
Firmness At 550N
64.3 N/mm
65.0 N/mm
Firmness At 1100N
71.2 N/mm
68.5 N/mm
Firmness At 1900N
95.3 N/mm
91.2 N/mm
Forefoot Firmness
9.4
9.1
Forefoot Firmness Graph
Preview Graph
Preview Graph
Firmness At 800N
77.6 N/mm
70.6 N/mm
Firmness At 1300N
96.9 N/mm
87.7 N/mm
Firmness At 2050N
132 N/mm
119 N/mm
Forefoot Long Run Cushioning
6.3
6.9
Forefoot Long Run Cushioning
Preview Graph
Preview Graph
Energy Absorbed At 10km
6.82 J
7.55 J
Energy Absorbed At 20km
6.68 J
7.37 J
Energy Absorbed At 30km
6.58 J
7.25 J
Energy Absorbed At 40km
6.51 J
7.16 J
Rocker Stiffness
6.6
7.0
Forefoot Rocker Stiffness Video
Forefoot Rocker Stiffness Graph
Preview Graph
Preview Graph
Force To Flatten The Rocker
75 N
85 N
Forefoot Bending Energy Return
0.8
3.7
Forefoot Bending Video
Forefoot Bending Energy Return
Preview Graph
Preview Graph
Forefoot Bending Energy Return
42.7%
52.4%
Forefoot Bending Stiffness
6.6
7.0
Forefoot Bending Resistance Picture
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Forefoot Bending Resistance
Preview Graph
Preview Graph
Forefoot Bending Stiffness
5.8 N/mm
8.8 N/mm
Forefoot Bending Force
398 N
356 N
Heel Compression Depth
4.4
4.5
Heel Compression Graph
Preview Graph
Preview Graph
Heel Compression At 550N
8.6 mm
8.5 mm
Heel Compression At 1100N
15.5 mm
16.1 mm
Heel Compression At 1900N
19.9 mm
20.8 mm
Forefoot Compression Depth
4.6
5.0
Forefoot Compression Graph
Preview Graph
Preview Graph
Forefoot Compression At 800N
10.3 mm
11.3 mm
Forefoot Compression At 1300N
13.4 mm
14.8 mm
Forefoot Compression At 2050N
15.6 mm
17.3 mm
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adidas Adizero Pacer
adidas Questar 4
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adidas Adizero Pacer vs adidas Questar 4: Main Discussion
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