That permanent grin is not a coincidence. The Samoyed's upturned mouth corners evolved to stop drool from freezing on its face during Arctic sled work, a detail that tells you almost everything about where this dog comes from and what it was built for.
The breed spent centuries with the Samoyedic peoples of northwestern Siberia, pulling sleds, herding reindeer, and sleeping pressed against humans to share warmth in temperatures that dropped to minus forty. It is not a decorative dog that happens to have a beautiful coat. It is a working dog whose coat, temperament, and physiology are all calibrated for cold, open terrain and constant activity. Bringing one to a Bengaluru flat or a Chennai villa is a genuine trade-off, not just a grooming inconvenience.