Portable launch monitors can vary in their accuracy, depending on the specific model and the conditions in which they are used. However, in general, modern portable launch monitors can be very accurate and provide valuable data for golfers and coaches.
The accuracy of a portable launch monitor depends on a variety of factors, including the quality of the sensors used to measure ball and club data, the calibration of the device, and the environmental conditions in which it is used. Generally speaking, more expensive models with advanced sensors and calibration features tend to be more accurate than budget models.
It is also important to note that portable launch monitors are designed to provide estimates and approximations, rather than exact measurements. Therefore, while they can be very useful for tracking trends and identifying areas for improvement, they may not provide precisely accurate data in every instance.
Overall, while there can be variations in accuracy between different models, modern portable launch monitors are generally reliable and provide valuable information for golfers looking to improve their game.