inputs.text: great technology fantastic price - currently use lowrance hds10 bass boat wanted small combination gpsfinder jon boat researching modestly priced options ordered dragonfly 4 pro navionics gold bundle using short time must say impressed features get price not quite fast higher end units example takes little time automatic features switch things like depth range havent seen photolike downscan images yet however unit performs well quality sonar alone chirpwhat unit price range makes worthy consideration wifi connects easily smart phone wifish app works really well using ipad gives screen nearly size hds10 remember 2channel unit must running channels smart phone ipad frozen screen using dual displays trying view display not active unit screen smaller thought image quaility makes surprisingly easy interpret might add update later disappointed features turns not durable really works advertisedi couple comments amazon description one review seen regarding amazons listing says things like none things like waypointsroutes rms max suspect meant say not final specs time listing item think capability something like 2500 waypoints many routes sufficient rms view depths something like 600 feet fishing fresh water not worry unit underpoweredone reviewer said navionics chip comes unit not updatable 1 year like current navionics gold chips adding user data keep charts current checked navionics say bundled gold cards said went site register card asked wanted update card process proceeded completion maybe navionics seen value people adding user data keep gold charts current waived limitation say navionics iphone app currently costs 999 least couple days ago advertised 4999 seem accomodating customers reason