Why do some newer digital timing lights have lower ratings than older models?

In this pool, several newer USB-C rechargeable, feature-packed units (dwell, voltage, tach) carry lower averages and far smaller review counts than the long-established Innova lineup. With limited data it's hard to separate genuine quality issues from small-sample noise, but the established models simply have thousands of corroborating reviews behind them, which is why they rank higher here.