The low-degree portion of a number of recent global gravitational fields have been tested for accuracy using precise accelerations measured on 24-hour satellites. These measurements are independent of the data in the field models. The results show that the most accurate of the recent solutions have degree error variances significantly less than 100 mm (geoid height equivalent) for all degrees less than five. The broad and lasting features of ocean circulation should now be visible when comparing the geoid computed from this model with the average sea surface computed from satellite altimetry. However, before accurate mapping is possible, the equivalent accuracy of the mean altimetric surface at long wavelengths need to be verified.