Compare the specs of the Hammer Phobia and Hammer Viral Hybrid 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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| Brand | Hammer | Hammer |
| Ball Name | Phobia | Viral Hybrid |
| Cover Name | Semtex Pearl | Violent Flip Reactive Hybrid |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish | 500 / 2000 Abralon / Powerhouse Factory Finish Polish |
| Color | Smoke / Blue / Bronze | Lime / Gold Pearl |
| Core Name | Phobia | Vibe |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.49 | 2.51 |
| Total Diff. | 0.054 | 0.042 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |