You mean electric, not electronic
At least not until someone invents an RC model.

The best "bang for the buck," both price and quality, is the Raritan SeaEra...available as either a complete toilet or a "conversion" (everything but the bowl, allowing you to save money by using the existing one). Both are also available in raw water and pressurized flush water models. Check 'em out on the Raritan site at http://www.raritaneng.com It was purposely designed to be an identical, but much higher quality, more durable/reliable, replacement for the Jabsco 37010 series...and for the same price or less than the Jabsco has proven to be the most reliable durable in its price range.The Wilcox Newport is also a good choice. Models to be avoided are:Jabsco 29200 series...current draw is a whopping 26 amps compared to 16 for most others and flush water consumption is also higher. Raritan PHE II (electric version of the manual PH II...motor only replaces the pump handle and turns an outstanding manual toilet into the worst excuse for a electric toilet out there)Raritan Crown and Crown II...both are excellent toilets, but are designed for use on houseboats...they're not appropriate for sailboats because the current draw and flush water consumption are even higher than the Jabsco 29200.