I've had some unreliable scales too. The one I have now has remained VERY accurate and I've had it for over 2 years. It's a Weight Watchers scale. It's digital and the platform is glass. I don't do weight watchers and never really have, but the scale is great! I bought it at a drug store for about $50. Maybe you can find one of those! Of course, I'd like to have one that measures body fat % too, but for now my scale works great.