When you are considering buying Venue a pump you should also be thinking about what you are going to use it for. Two years is generally accepted to be the minimum acceptable lifespan of this type of product and so most warranties you find will be for two years. You should expect your Venue electric air pump to last you a number of years, depending on how heavily it is used. Durability and Warranty.
Other features could include internal cable storage compartments, making carriage and storage of the pump much easier. One of these is a Venue function where you can set the pressure you want and then set the pump to continue pumping until the pressure is reached, at which point it will switch itself off. There are some additional features that you may also find in electric bicycle pumps. For many applications the pressure gauges on electric pumps will be good enough to at least estimate the pressure in Venue a tire.