1, Brushroll On/Off Switch
One of the key difference between them is that the brush roll on the AS1000A cannot be shut off while the AS1101A has a brush roll on/off switch.
2, Cord Winding
The AS1101A is equipped with Auto Cord Rewind system while the AS1000A uses manual winding.
3, SuctionSeal Technology
The AS1101A features SuctionSeal Technology, Eureka claim that it can improve suction power for deep cleaning, while the AS1000A does not have.
4, Wheels
The AS1101A has improved rubberized wheels to protect hardwood and delicate flooring.
You can read more specs comparison below:
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Compare Eureka AS1000A and AS1101A
| Eureka AS1000A AirSpeed Bagless Upright Vacuum | Eureka AS1101A Suctionseal Bagless Upright Vacuum | |
|---|---|---|
 |  |
|
| List Price | not available on eureka.com on August 23, 2014 | not available on eureka.com on August 23, 2014 |
| Power Source: | corded | corded |
| Cord Length | 27 feet | 27 feet |
| Power Rating: | 12 amps | 12 amps |
| Cleaning Path | 14 inch | 14 inch |
| Motorized Brush Roll | Yes | Yes |
| Brushroll Shutoff | No | Yes The brushroll on/off switch allows you to select proper mode to clean carpets or bare floors. |
| Hose and Wand Reach | 12 foot | 12 foot |
| Bagged or Bagless: | Bagless | Bagless |
| Weight | 18.5 lbs. | 20.7 lbs |
| Cleaner Dimensions: W x L x H | 14" x 12" x 43.5" | 14.2" x 15.3" x 43.8" |
| Color | Black with Yellow | Black with Blue, Yellow |
| HEPA Filtration | Yes | Yes |
| Auto Cord Rewind | No | Yes |
| Height Adjustment | Yes Manual | Yes Manual |
| Tools | Upholstery and Dusting Brush, Crevice Tool | Stair & Upholstery Turbo Nozzle, Extension Wand, Crevice Tool, Dusting Brush |
| SuctionSeal® Technology to maximize airflow for powerful cleaning performance | No | Yes |
| AirSpeed® Technology decrease the distance for dirt to travel, increases the amount of airflow for suction | Yes | Yes |
| WhirlWind® Cyclonic Technology maintains suction power and separates large debris from fine dust | Yes | Yes |
| Airflow Control Switch diverts the suction power to the floor or the hose | Yes | Yes |
| Warranty | 2-year limited warranty | 3-year limited warranty |
| Manual: | AS1000A Owner's Guide | Eureka AS1001A User Guide |
| Official Link | http://www.eureka.com/en-US/Vacuums/Uprights/AirSpeed/Uprights-AirSpeed-AS1000A.aspx | http://www.eureka.com/en-US/Vacuums/Uprights/SuctionSeal/Uprights-SuctionSeal-AS1101A.aspx |
Any reviews on these 2 Eureka vacuum cleaners will be appreciated.