All of them are upright models, bagged, and corded. The Oreck XL Insight is heavier, has smaller wheels, carries shorter warranty, and is the cheapest one.

Compare Oreck Magnesium RS, SP with Insight U7010ECS specs

	Oreck Insight Vacuum Cleaner U7010ECS Specs	Oreck Magnesium SP LW100 Bagged Upright Vacuum Cleaner Specs	Oreck Magnesium RS LW1500RS Bagged Upright Vacuum Cleaner Specs
Brand	Oreck	Oreck	Oreck
Model	U7010ECS	LW100	LW1500RS
Design	Upright	Upright	Upright
Dirt Collection	Bag	Bag	Bag
Full Indicator	No	No	No
On/Off Switch Location	on the handle	on the back of the vacuum	on the handle
Power Source	Corded	Corded	Corded
Cord Length	30 feet	30 feet	30 feet
Auto Cord Rewind	No	No	No
Motorized Brushroll	Yes	Yes	Yes
Brushroll Shutoff	No	No	No
Speed Settings	2	2	2
Roller Speed	6,500 revolutions per minute on high speed	7,000 revolutions per minute on high speed	7,000 revolutions per minute on high speed
Weight	about 9 pounds without cord	about 7.7 pounds without cord	about 7.7 pounds without cord
Height Adjustment	no manual setting	no manual setting	no manual setting
Nozzle Width	about 13"	about 12''	about 12''
HEPA Filtration	Yes	Yes	Yes
Headlights	Yes	Yes LED	Yes LED
Attachments	No	No	No
Side Brush	Yes	No	Yes
Self-propelled	No	No	No
Handle	Comfort-fit handle	Easy-fit Handle	Easy-fit Handle
Swivel Steering	No	No	Yes
Suction Control	No	No	No
Color	Multi Color	Black with Blue	Black with Blue
Price		$399.99 on oreck.com on November 12, 2014	$599.99 on oreck.com on November 12, 2014
Dimensions	48' H x 13'' W x 9.5'' D	47.5'' H x 12'' W x 10.5'' D	47.75'' H x 12'' W x 10.5'' D
Manual		Manual Download Link from Official Site	Manual Download Link from Official Site
Tuneups		3 tune-ups	5 tune-ups
Warranty	5 year limited warranty	7-year limited warranty	7-year limited warranty
CRI Seal of Approval		Gold Level	Silver Level