UH70010 v.s. UH70015
images from manufacturer

The major difference between Hoover UH70010 and UH70015 is the Embedded Dirt Finder. The UH70015 come with this indicator that uses sonic technology to tell you if your floors or carpet is clean while the UH70010 does not feature the indicator light.

Warranty:
The UH70010 carries a 6 year limited warranty whereas the UH70015 is backed up with a 5 year limited warranty.

Price:
At hoover.com, the price of Hoover UH70010 is $399.99 whereas the price of UH70015 is $269.99 (prices checked on June 07, 2013), however, the UH70010 is out of stock.

The similarities between them:
They are bagless;
use Cyclonic technology to separate particles from the air without using the filter, reduce the frequency of cleaning filters.
features WindTunnel Technology to pick up debris without releasing them back to floors.
it also equipped with the so called No Loss of Suction which utilizes multi-stage cyclonic filtration system to keep the air cleaner, and maintain the filter cleaner for a longer time.
equipped with HEPA media fitler that results fresher air than using standard type of filters.
comes with lifetime rinsable filter.
includes a Aluminum Extension Wand for cleaning high and low , Crevice Tool, Combination Dusting Brush & Upholstery Tool for removing dirt and dust from furniture, upholstery, above floor cleaning;
bottom empty dust chamber adds convenience for emptying after vacuuming;
they both have no auto cord winding mechanism;
12 amps motor to deliver strong suction for picking up dirt, dust, pet hair, etc.;
have cable length of 40 ft;
come with 8 ft stretch hose;
equipped with motorized head and brush roll on/off for cleaning carpeting, area rugs, bare floors;
have several height adjustment settings to select when it is needed;
both feature headlight to help clean low light spots;
have 14 inch cleaning width;
they both weigh 19 pounds.

Please share your opinion below if you know more difference between Hoover UH70010 and UH70015.