  We investigate logarithmically enhanced electromagnetic corrections of all
angular observables in inclusive B -> X_s l^+ l^-. We present analytical
results, which are supplemented by a dedicated Monte Carlo study on the
treatment of collinear photons in order to determine the size of the
electromagnetic logarithms. We then give the Standard Model predictions of all
observables, considering all available NNLO QCD, NLO QED and power corrections,
and investigate their sensitivity to New Physics. Since the structure of the
double differential decay rate is modified in the presence of QED corrections,
we also propose new observables which vanish if only QCD corrections are taken
into account. Moreover, we study the experimental sensitivity to these new
observables at Belle II.
