Whill's electric wheelchair picked up the award for Best Accessibility Tech in last year's Best of CES, and now it's back with a newer, lighter and more portable version of that vehicle. The Model Ci uses a lithium-ion battery and can travel 10 miles on one charge, with a top speed of five miles per hour. (We took the Model Ci for a brief spin and we're happy to confirm 5 MPH is plenty fast for everyday navigation; it's a light jogging speed). That battery makes it lightweight, too; the entire thing weighs 115 pounds. The Model Ci is available today for $4,000.