Here is a comparative table between PowerRay from PowerVision and Spry from SwellPro. The second product turns out to reach a maximum speed higher than that of the first product. The first product has a maximum time of autonomy greater than that of the second. PowerRay is priced higher than Spry. The Spry battery has a capacity lower than that of PowerRay. PowerRay and Spry have the same camera resolution. Spry takes up less space than PowerRay. PowerRay is heavier than Spry. We provide here a summary designed for quick reading between PowerRay and Spry. Published data is always indicative and may contain errors or be subject to change. Always check official sources.