Yb3+ doped metal halide perovskites nanocrystals have received a lot of interest recently as cutting-edge materials for solar applications because of their excellent carrier mobility, extremely long carrier diffusion lengths, and acceptable optical band gaps. The remarkable features of Yb 3+ doped metal halide perovskites also make them useful in a wide range of applications, including light-emitting diodes, lasers, X-ray detectors, memory devices, and more. Here, the unique characteristics of the various Yb 3+ doped metal halide perovskites materials are discussed along with their luminescence properties to show why these materials are so intriguing for a variety of applications. We outline recent advances in halide perovskites uses outside of photovoltaic and offer suggestions.