I originally bought a cheaper oximeter, widely available through several sellers. It was flimsy, hard to read, and it failed within days. This is so much better. It feels like a nice solid little bit of equipment, not a flimsy cracker toy. It has a display that lights up and is easy to read. It appears to be accurate. The better quality, ease of use, and clear display has encouraged my partner to use it more.
Well worth the extra money. I am so pleased the first one failed and pushed me into getting this one instead.