Smlight SLZB Ultima vs Sonoff Dongle Max

In 2026, the recommendation leans toward Smlight SLZB Ultima over Sonoff Dongle Max, driven by Z-Wave controller, dual network, and bluetooth proxy. It builds its lead on Z-Wave controller, dual network, and bluetooth proxy, then backs it up with a stronger showing on its broader overall balance. Choose Sonoff Dongle Max only if rating matters more to you than the broader advantage from Smlight SLZB Ultima. That makes Smlight SLZB Ultima the clearer recommendation in 2026.