Both the Walker Bay 340 AIR 2008 and the Walker Bay Genesis Light RIB 2013 are foldable designs, both built in inflatable, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Both boats share a closely matched power ceiling - 15 hp for the Walker Bay 340 AIR 2008 and 10 hp for the Walker Bay Genesis Light RIB 2013. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
The Walker Bay 340 AIR 2008 is rated for up to 5 people. Passenger data for the Walker Bay Genesis Light RIB 2013 wasn't available.
Top speed is rated at 20 mph for the Walker Bay 340 AIR 2008 and 19 mph for the Walker Bay Genesis Light RIB 2013.
Bottom line: The Walker Bay 340 AIR 2008 at 11,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Walker Bay Genesis Light RIB 2013 at 8,8 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.