ASICS MEGABLAST vs Dynafish Xiaonian: Which Running Shoe Is Better?

Tested using Methodology v0.15

Updated Sep 03, 2026 03:46 PM

See ASICS MEGABLAST Review

Heel Stack Height 44.6 mm

Weight 229.9 g (8.11 oz)

Heel-To-Toe Drop 8.7 mm

Plate None

Heel Stack Height 40.6 mm

Weight 192.5 g (6.79 oz)

Heel-To-Toe Drop 9.4 mm

Plate None

Recommended in 6 articles:
Running Shoes
For Men
Women
3

Recommended in 1 article:
Long Distance

Our Verdict

ASICS MEGABLAST

Dynafish Xiaonian

The Dynafish Xiaonian has the edge over the ASICS MEGABLAST. It's more stable underfoot, and its low weight helps it feel less demanding over repeated training miles. The MEGABLAST absorbs more impact, making it more comfortable for easy miles. Its lively energy return also gives it range across different training paces. The MEGABLAST is easier to purchase, with wider retail availability.

Variants

MEGABLAST (Edo Purple/Black - (Men - US 9))
MEGABLAST (Edo Purple/Black - (Women - US 7))

Xiaonian (Black - (Men - US 9))
Xiaonian (Burning Sun - (Women - US 7))

Review

See Dynafish Xiaonian Review

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Notice: Two or more of the products being compared have been tested with different test methodologies. Some of the results aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our running shoes test methodology.

Threshold

0.10

Half/Full Marathon Racing

8.1

8.4

Weight

7.2

8.4

Full Comparison

Half/Full Marathon Racing

8.1

8.4

5K/10K Racing

7.0

7.5

Long Run

8.0

Daily Training

8.1

Energy Return

8.3

8.4

Stability

6.7

7.2

Cushioning

9.3

8.9

Bounciness

7.8

7.6

Snappiness

7.1

6.6

Roll

7.6

7.5

True To Size

8.9

9.5

Wet & Warm Weather

Design

Weight

7.2

8.4

Right Shoe Weight Photo

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Dynafish Xiaonian Right Shoe Weight Photo

Left Shoe Weight Photo

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Weight

229.9 g (8.11 oz)

192.5 g (6.79 oz)

Stack Heights

Stack Height Photo

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Heel Stack Height

44.6 mm

40.6 mm

Forefoot Stack Height

35.9 mm

31.2 mm

Heel-To-Toe Drop

8.7 mm

9.4 mm

Advertised Heel-To-Toe Drop

8.0 mm

7.0 mm

External Shape

3D Model Full Shoe

Preview 3D

Outsole Heel Width

96 mm (3.8")

97 mm (3.8")

Outsole Arch Width

80 mm (3.2")

80 mm (3.1")

Outsole Forefoot Width

119 mm (4.7")

118 mm (4.7")

Heel Width-To-Stack Ratio

2.15

2.39

Forefoot Width-To-Stack Ratio

3.31

3.78

Internal Shape

3D Model Internal

Preview 3D

Internal Length

282 mm (11.1")

275 mm (10.8")

Internal Heel Width

66 mm (2.6")

58 mm (2.3")

Internal Forefoot Width

94 mm (3.7")

Wide Sizing Available

Forefoot Fit: Width

7.9

8.9

Forefoot Width Photo

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Ball-Of-Foot TTS Deviation

-3.6 mm (-0.140")

4.1 mm (0.160")

Toe TTS Deviation

-2.9 mm (-0.115")

-1.4 mm (-0.056")

Forefoot Fit: Height

8.1

8.2

Forefoot Height Photo

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Toe TTS Deviation

-2.4 mm (-0.093")

-2.3 mm (-0.092")

Arch Fit: Width

8.0

9.8

Arch Fit Photo

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Arch Width TTS Deviation

-3.3 mm (-0.130")

-0.6 mm (-0.023")

Length Fit

Toe Clearance Photo

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Heel Rocker Geometry

8.4

6.6

Heel Rocker Photo

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Heel Spring

30 mm (1.2")

21 mm (0.8")

Heel Apex Position

21.7%

29.8%

Heel Rocker Angle

24.8°

13.7°

Forefoot Rocker Geometry

7.2

8.3

Forefoot Rocker Photo

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Toe Spring

50 mm (2.0")

62 mm (2.4")

Toe Apex Position

68.3%

58.5%

Forefoot Rocker Angle

27.8°

27.3°

Foam

Primary Foam Picture

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Secondary Foam Picture

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Dynafish Xiaonian Secondary Foam Picture

Primary Foam Name

N/A

Primary Foam Name

FF TURBO²

Primary Foam Type

A-TPU

TPEE

Secondary Foam Name

N/A

Secondary Foam Name

No Secondary Foam

Secondary Foam Type

No Secondary Foam

Laces

Laces Picture

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Lace Type

Sawtooth

Flat

Width

5.0 mm (0.2")

4.0 mm (0.2")

Thickness

1.2 mm (0.0")

1.5 mm (0.1")

Stretch

6.0%

12.5%

Breathability

7.5

Breathability Video

Upper Breathability

Upper Microscope Photo

Time-To-Dry

7.8

Time-To-Dry Timelapse

Time-To-Dry Graph

Preview Graph

Time To 30% Dry

6.1 hrs

Time To 70% Dry

16.0 hrs

Time To Dry

24.2 hrs

Water Absorption

7.3

Dry Weight Photo

Wet Weight Photo

Water Absorbed

43.7%

Other Features

Other Features Photo

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Tongue Gusset Type

Fully-gusseted

Semi-gusseted

Plate

None

Performance

Heel Compression Energy Return

8.4

8.0

Heel Compression Video

Heel Energy Return

Preview Graph

Heel Energy Return

82.9%

80.8%

Forefoot Compression Energy Return

8.3

8.6

Forefoot Compression Video

Forefoot Energy Return

Preview Graph

Forefoot Energy Return

82.8%

84.3%

Heel Cushioning

9.3

8.8

Heel Cushioning Picture

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Heel Cushioning

Preview Graph

Energy Absorbed At 550N

4.35 J

4.08 J

Energy Absorbed At 1100N

12.12 J

11.05 J

Energy Absorbed At 1900N

21.19 J

18.34 J

Forefoot Cushioning

9.4

9.1

Forefoot Cushioning Picture

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Forefoot Cushioning

Preview Graph

Energy Absorbed At 800N

6.16 J

5.83 J

Energy Absorbed At 1300N

11.21 J

10.36 J

Energy Absorbed At 2050N

16.62 J

15.20 J

Heel Firmness

5.0

5.9

Heel Firmness Graph

Preview Graph

Firmness At 550N

34.4 N/mm

36.7 N/mm

Firmness At 1100N

42.6 N/mm

46.1 N/mm

Firmness At 1900N

59.2 N/mm

65.6 N/mm

Forefoot Firmness

5.0

5.8

Forefoot Firmness Graph

Preview Graph

Dynafish Xiaonian Forefoot Firmness Graph

Firmness At 800N

47.0 N/mm

49.6 N/mm

Firmness At 1300N

59.1 N/mm

63.2 N/mm

Firmness At 2050N

81 N/mm

87 N/mm

Forefoot Long Run Cushioning

8.9

8.5

Forefoot Long Run Cushioning

Preview Graph

Dynafish Xiaonian Forefoot Long Run Cushioning

Energy Absorbed At 10km

10.19 J

9.52 J

Energy Absorbed At 20km

9.98 J

9.29 J

Energy Absorbed At 30km

9.84 J

9.15 J

Energy Absorbed At 40km

9.74 J

9.04 J

Rocker Stiffness

7.5

Forefoot Rocker Stiffness Video

Forefoot Rocker Stiffness Graph

Preview Graph

Dynafish Xiaonian Forefoot Rocker Stiffness Graph

Force To Flatten The Rocker

99 N

101 N

Forefoot Bending Energy Return

7.9

Forefoot Bending Video

Forefoot Bending Energy Return

Preview Graph

Forefoot Bending Energy Return

70.9%

70.5%

Forefoot Bending Stiffness

7.8

5.9

Forefoot Bending Resistance Picture

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Forefoot Bending Resistance

Preview Graph

Dynafish Xiaonian Forefoot Bending Resistance

Forefoot Bending Stiffness

16.1 N/mm

6.9 N/mm

Forefoot Bending Force

316 N

243 N

Heel Compression Depth

7.6

7.1

Heel Compression Graph

Preview Graph

Dynafish Xiaonian Heel Compression Graph

Heel Compression At 550N

16.0 mm

15.0 mm

Heel Compression At 1100N

25.8 mm

23.9 mm

Heel Compression At 1900N

32.1 mm

28.9 mm

Forefoot Compression Depth

7.4

7.0

Forefoot Compression Graph

Preview Graph

Dynafish Xiaonian Forefoot Compression Graph

Forefoot Compression At 800N

17.0 mm

16.1 mm

Forefoot Compression At 1300N

22.0 mm

20.6 mm

Forefoot Compression At 2050N

25.3 mm

23.6 mm

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