I've got the st460 and I've seen a stenlight in person. I'd have to say the st460 looks tougher. The rubber mount, while being slightly annoying in use, will not crush, bend or break when wacked against rocks and stuffed into bags or sat on. The st460 also doesn't have wires to pull out, or break and the battery is protected in its aluminum light. The light head on the sten might be just as durable, but I believe when considering the total system of both lights, the st460/500 wins. That being said, I doubt either light's durability will be an issue as they are both well thought out lights and made to survive.