Brunswick Ethos vs. Brunswick Ultimate Defender

Compare the specs of the Brunswick Ethos and Brunswick Ultimate Defender side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.

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brunswick ethos
Brunswick Ultimate Defender
Brand
Ball NameEthosUltimate Defender
Cover NameHK22 - SH 4.0 PearlHK22 - ACT 3.0 Hybrid
Cover TypeReactive PearlReactive Hybrid
Box Finish500 / 1000 / 1500 SiaAir / Crown Factory Compound500 / 2000 SiaAir
ColorPurple / Sky / CarbonViolet / Pink / Navy
Core NameEthosPortal X
Core TypeSymmetricalAsymmetrical
RG2.4812.473
Total Diff.0.0530.054
Int. Diff.0.0000.015

Torque

Length

Back End

Total Hook

Ball Tester Ratings

Bowling Ball Comparison Graph

The graph below shows a visual comparison of the selected balls. Hover over each colored circle in the graph to see that ball’s name and ratings. Click a circle to view that ball’s full review.

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