Prospects for B Physics with the ATLAS and CMS Detectors

We describe the perspectives of the ATLAS and CMS experiments at the LHC in the B-physics field and review recent performance evaluations obtained by the two Collaborations. Despite having been designed for high-pT physics, both experiments have a rich B-physics programme and can compete with dedicated detectors in many studies of B-hadron production, decay and CP violation. These results can significantly contribute to the knowledge of these phenomena in the LHC era.