Aortic valve stenosis ( AS ) is the most common acquired valve disease in developed countries. Surgical aortic valve replacement ( SAVR ) was the only effective treatment option for patients with AS until the introduction of transcatheter aortic valve replacement ( TAVR ). TAVR has become a cornerstone in the management of patients with AS, and in the last few years, the total number of annual TAVR procedures has exceeded the number of SAVR procedures in the United States. TAVR valves have undergone substantial modifications to improve their performance. As TAVR technologies continue to evolve, new devices differing in their design will become available to fit more clinical needs of patients. Although the majority of patients can be successfully treated with any one of a number of devices, currently there is no one ideal valve that can fit all patients. Therefore, a multitude of factors should be considered when selecting a TAVR device for your patient, to obtain the best results. This chapter will summarize different types of TAVR devices available or under investigation and what patient, anatomic, or device-specific factors should be considered when selecting among TAVR devices.