  In this proceeding, the phenomenology of Universal Extra Dimensions (UED), in
which all the Standard Model fields propagate, is explored. We focus on models
with one universal extra dimension, compactified on an $S_1/Z_2$ orbifold. We
revisit calculations of Kaluza-Klein (KK) dark matter without an assumption of
the KK mass degeneracy including all possible coannihilations. We then contrast
the experimental signatures of low energy supersymmetry and UED.
