Ping ISI vs Ping i3 O-Size
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | ISI loft | i3 O-Size loft | ISI lie | i3 O-Size lie | ISI length | i3 O-Size length |
|---|---|---|---|---|---|---|
| 3 | 20.5 | 20.5 | 60.5 | 59.5 | 38.75 | 38.75 |
| 4 | 24 | 24 | 61 | 60 | 38.25 | 38.25 |
| 5 | 27 | 27 | 62 | 61 | 37.75 | 37.75 |
| 6 | 30.5 | 30.5 | 62.5 | 61.5 | 37.25 | 37.25 |
| 7 | 34.5 | 34.5 | 63.5 | 62.5 | 36.75 | 36.75 |
| 8 | 38.5 | 38.5 | 64 | 63 | 36.25 | 36.25 |
| 9 | 42.5 | 42.5 | 64 | 64 | 35.75 | 35.75 |
| PW | 47 | 47 | 65.5 | 64.5 | 35.5 | 35.5 |
| UW | 49.5 | 52 | 65.5 | 64.5 | 35.5 | 35.25 |
| SW | 52 | 56 | 65.5 | 64.5 | 35.25 | 35.25 |
| LW | 61 | 60 | 65.5 | 64.5 | 35 | 35 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The i3 O-Size is the weaker-lofted set — up to 4° weaker than the ISI. That trades raw distance for a steeper landing angle and more predictable stopping power into greens.
Both charts are reproduced in full on their own pages: Ping ISI specs and Ping i3 O-Size specs.