May 20, 2020 · The Fujifilm X-T4 is the company's latest high-end photo and video APS-C mirrorless camera. It brings in-body stabilization, faster shooting, improved autofocus and a larger battery to the already very capable X-T3. Fujifilm says that the X-T4 is a sister model to the X-T3, rather than a replacement, which is borne out by the specs and pricing.