S3 x RP2$S^3 \times \mathbb{R}P^2$ and RP3 x S2$\mathbb{R}P^3 \times S^2$ are both smooth 5-manifolds with fundamental group Z/2$\mathbb{Z}/2$ and universal cover S3 x S2$S^3 \times S^2$, so their homotopy groups are all the same. On the other hand, only the latter is orientable since RP3$\mathbb{R}P^3$ is orientable but RP2$\mathbb{R}P^2$ isn't, so they have different values on H5$H^5$ and therefore can't be homotopy equivalent. (I think this example is in Hatcher somewhere.)
David White
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