You'll actually find it pretty easy to learn both. Elixir was very inspired by Clojure, so it works similar to it in a lot of ways. It is like taking Clojure and removing the Lispy aspect from it (which to me is the biggest downside of Elixir, as I love Lispyness, but that also makes it more approachable and familiar to people without a Lisp background).
The biggest difference will actually lie on the host platforms. Learning BEAM and Erlang standard library Vs learning JVM and Java standard library.
For complenetess, I want to point out there is also a Clojure variant running on BEAM/Erlang called Clojerl found here: https://github.com/clojerl/clojerl
Development is pretty active, and I think it is approaching maturity pretty soon.
The biggest difference will actually lie on the host platforms. Learning BEAM and Erlang standard library Vs learning JVM and Java standard library.
For complenetess, I want to point out there is also a Clojure variant running on BEAM/Erlang called Clojerl found here: https://github.com/clojerl/clojerl
Development is pretty active, and I think it is approaching maturity pretty soon.