The best digital refractometer for your needs depends on what you plan to use it for. If you are looking for a refractometer to measure the sugar content of fruit juices, wines, and other beverages, then a handheld digital refractometer is a great choice. These refractometers are easy to use and provide accurate readings. If you are looking for a refractometer to measure the refractive index of a liquid or solid sample, then a benchtop digital refractometer is the best option. These refractometers are more accurate and provide more detailed readings than handheld models.