O-I Experimental vs T1 Heavy
Both O-I Experimental and T1 Heavy are tier 5 heavy tanks in World of Tanks. Below is a head-to-head stat comparison across HP, armor, gun performance, mobility, and concealment.
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Side-by-side stats
| Stat | O-I Experimental Japan | T1 Heavy USA | Winner |
|---|---|---|---|
| HP | 736 | 728 | O-I Exp. |
| Hull armor | 125 | 95.3 | O-I Exp. |
| Damage | 360 | 115 | O-I Exp. |
| Penetration | 60 | 101 | T1 Heavy |
| DPM | 2056 | 1865 | O-I Exp. |
| Speed | 25 | 35 | T1 Heavy |
| Camo (still) | 3.8% | 8.0% | T1 Heavy |
What the numbers say
The O-I Experimental has 8 more HP than the T1 Heavy. Hull armor differs by 29.700000000000003mm at the front (O-I Exp. is thicker). The top gun on the O-I Exp. deals 245 more damage per shot (360 vs 115). Maximum theoretical DPM favors the O-I Exp. at 2056 (1865 for the other). Top speed differs by 10 km/h (T1 Heavy is faster).
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FAQ
Which is better in WoT, O-I Experimental or T1 Heavy?
By raw stats alone, the O-I Exp. wins 4 of 7 stat categories. The other wins 3, with 0 ties. Actual matchup performance depends on map, role, and player skill — but on paper this is the breakdown.
Are O-I Exp. and T1 Heavy the same tier?
Yes, both are tier 5 heavy tanks.
What about other tier 5 heavy tanks?
See the full tier 5 heavy tank tier list for all options at this tier.