Currently unavailable.
We don't know when or if this item will be back in stock.
Added to

Sorry, there was a problem.

There was an error retrieving your Wish Lists. Please try again.

Sorry, there was a problem.

List unavailable.

Shark IONFlex 2X DuoClean Ultra-Light Cordless Vacuum, IF251, Blue Stream

4.4 4.4 out of 5 stars 2,246 ratings

To see product details, add this item to your cart. You can always remove it later.
Blue Stream
Brand Shark
Special Feature cordless
Filter Type Foam
Included Components Double Battery, Single Charger, Single Cradle, Duster Crevice Tool, Pet Multi Tool, Anti-Allergen Dust Brush See more
Is Cordless? Yes
Surface Recommendation
Floors,Carpet
Power Source
Battery Powered
Voltage
240 Volts
Item Weight
15 Pounds

About this item

  • Hassle-free runtime
  • 2X ION Power Pack System
  • MultiFLEX Technology folds over for compact, free-standing storage and provides flexible reach to get under beds, couches, and tables
  • DuoClean Technology a combination of bristle brush and soft roller invented to clean fine dust and small and large particles on both carpets and floors
  • Floor-to-ceiling versatility. MultiFLEX Technology allows you to store this vacuum in a compact, upright position. Hold down the "Press to Unlock" button and gently fold the handheld vacuum forward toward the floor nozzle. Use the handle to carry the vacuum to its storage location

Customer ratings by feature

Maneuverability
4.5 4.5
Versatility
4.4 4.4
For hardwood floors
4.1 4.1
Suction power
4.1 4.1

Compare with similar items

This Item
Shark IONFlex 2X DuoClean Ultra-Light Cordless Vacuum, IF251, Blue Stream
Shark IONFlex 2X DuoClean Ultra-Light Cordless Vacuum, IF251, Blue Stream
Recommendations
Shark IZ682H Vertex Pro Lightweight Cordless Stick Vacuum with DuoClean PowerFins, Black/Silver
dummy
Shark Vertex DuoClean PowerFins Cordless Stick Vacuum Cleaner IZ440H (Renewed)
dummy
Shark IZ361H Cordless Anti-Allergen Stick Vacuum with Self-Cleaning Brushroll, Removable Handheld Tools, 40 Min Runtime
dummy
Shark UV900 Pet Performance Plus Lift-Away Upright Vacuum with DuoClean PowerFins HairPro and Odor Neutralizer Technology, Navy/Silver (Renewed)
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
Details
Added to Cart
PriceCurrently unavailable.$479.99$199.99-18% $269.00
List:$329.99
-52% $149.99
New Price:$319.00
Delivery
Get it as soon as Wednesday, Mar 27
Get it Mar 27 - 29
Get it Apr 1 - 9
Get it Mar 27 - Apr 1
Customer Ratings
Suction power
4.1
4.1
4.5
3.8
4.6
Maneuverability
4.5
4.4
4.4
For hardwood floors
4.1
3.9
4.6
For deep cleaning
4.1
4.0
3.3
For cleaning up hair
4.3
3.7
5.0
Sold By
Amazon.com
Good As New Electronics
HAPPY TOOL
Woot
power source
Battery Powered
Battery Powered
Battery Powered
Battery Powered
special feature
cordless
Lightweight
Lightweight
Lightweight, Cordless, LED Headlights, Compact, HEPA
HEPA, Corded, LED Headlights, Bagless, Two Brushrolls, Odor Neutralizer Technology
surface suggestion
Floors,Carpet
Hard Floor, Carpet
Above Floor, Carpets & Hard Floors
Carpets,Hard Floors
capacity
0.3 quarts
1 quarts
5 pounds
0.34 quarts
voltage
240 volts
25.2 volts
25.2 volts
21.6 volts
120 volts
noise level
80 decibels
80 decibels
70 decibels
80 decibels
80 decibels

From the manufacturer

Hassle-Free Runtime

Always Be Charging

With two rechargeable ION Power Packs, you can charge while you clean, so you can go, go, and go again.

Freestanding Cord-Free

With new MultiFLEX technology, you can park anywhere you want, even while a battery charges elsewhere.

Removable, Rechargeable Batteries

Break free from the wall-two removable batteries give you the freedom to charge when and where you want.

Versatile Cleaning

Upright Mode

DuoClean combines the deep-cleaning bristle brush with an added soft brushroll, so you can transition from carpets to floors with ease throughout your house.

Reach Mode

MultiFLEX technology gives you the ability to bend the wand to easily access hard-to-reach areas like under furniture.

Above-Floor Cleaning

For the messes that go beyond the floor to places like corners and shelves, the Shark IONFlex 2X transforms into a handheld vacuum for easy, lightweight cleaning.

Experience Hassle-Free Runtime

Introducing the new face of DuoClean. Always Be Charging while you’re vacuuming or parking.

Shark ION F80 Cord-Free MultiFLEX Cordless Stick Vacuum (IF281) Shark ION X40 Cord-Free Ultra-Light Cordless Stick Vacuum (IR141) Shark IONFlex 2X DuoClean Cordless Ultra-Light Vacuum (IF251) Shark ION P50 Cordless Powered Lift-Away (IC162)
Customer Reviews
4.3 out of 5 stars
2,108
4.3 out of 5 stars
237
4.4 out of 5 stars
2,246
4.3 out of 5 stars
2,028
Description This cordless vacuum offers up to 80 minutes of runtime in ION Power mode, measured at the hand vacuum when using 2 batteries consecutively—just switch the battery and keep going. Featuring DuoClean, MultiFLEX, and a hand vacuum. DuoClean floor-and-carpet performance combines with up to 40 minutes of cordless runtime in ION Power mode, measured at the hand vacuum. Convert to a hand vacuum for added versatility and above-floor cleaning. Enjoy the benefits of DuoClean with the convenience of cord-free power. Two removable, rechargeable ION Power Pack lithium-ion batteries allow you to vacuum with one while the other is charging. Upright performance, cordless convenience.* Featuring Powered Lift-Away, DuoClean , XL dust cup capacity, and up to 50 minutes of runtime**. *Based on overall cleaning performance vs. Shark NV105. **In ION Power mode measured at the handle.
Runtime & Power Up to 80 minutes with the hand vacuum using 2 batteries consecutively in ION Power Mode. Up to 40 minutes with the hand vacuum in ION Power Mode. 1 Removable, Rechargeable ION Power Pack 2 Removable Lithium Ion Batteries Up to 50 minutes with the wand and handle in ION Power Mode. 1 Removable, Rechargeable ION Power Core Battery
DuoClean Technology
MultiFlex Technology - -
Powered Lift-Away Technology - - -
Anti-Allergen Complete Seal - -
Converts to a hand vacuum
Dust Cup Capacity (Quarts) 0.3 0.3 0.3 0.54
Product Weight (Pounds) 8.7 8.7 3.8 12.03

Product guides and documents

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

Feedback

Shark

Shark IONFlex 2X DuoClean Ultra-Light Cordless Vacuum, IF251, Blue Stream


Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?

/
/
/
/
Please sign in to provide feedback.

Looking for specific info?

Product Description

Shark IONFlex 2X DuoClean Cordless Ultra-Light Vacuum IF251, IF251, Blue. For optimal performance, clean filters on a regular basis. Between washings, your filter can be tapped clean to remove any excess dust and other particles into the trash- Pre-Motor Foam & Felt Filters- Under normal usage, rinse and let air dry completely (for at least 24 hours) once a month. Post-Motor Exhaust Filter- Under normal usage, rinse and air dry once every 9 months or as needed. Filter type - Washable foam & felt. Wattage: 300

Customer reviews

4.4 out of 5 stars
4.4 out of 5
2,246 global ratings

Customers say

Customers like the quality, weight and ease of use of the vacuum cleaner. For example, they mention it's very effective, light and doesn't bump into things. They appreciate the ease of cleaning, and cord length. That said, opinions are mixed on suction, battery life and value.

AI-generated from the text of customer reviews

372 customers mention312 positive60 negative

Customers like the quality of the vacuum cleaner. They say it is very effective, works well on all surfaces, and has decent suction. Some mention that the low power works well for Berber and the high power is best for plush.

"...This vac however is much sturdier than the previous Shark products I'd owned...." Read more

"...Yippee. It's a solid base. Much higher quality product than the Dyson...." Read more

"...It works ok on the the throw rugs and area rugs - I have all hard floors so I can't speak to how it does on carpet..." Read more

"...Easy to clean, easy to use. It is very powerful. I am pretty sure on carpet mode it would pull itself if I wasn't holding on to it...." Read more

274 customers mention221 positive53 negative

Customers like the weight of the vacuum cleaner. For example, they say it's light enough for their 10 year old to use, and fun enough that he can. They also appreciate the small footprint and the fact that it folds up making it very easy to carry and store. Customers also mention that it corners fairly well and is thin enough to go under low furniture. Overall, most are happy with the weight and size of the product.

"...Less heavy, I don't have to worry about, "Is this the day the belt breaks and I have to spend 20 minutes wrestling with it?"..." Read more

"...The battery life is good and it is pretty lightIt costs a bit , but worth every pennyEdit..." Read more

"...is very easy to use as it doesn't have a cord to deal with and is super light. In sweeping, it out performed a Dyson, Bissell, and i-Roombot...." Read more

"...The Ionflex is light weight making it easy to use as a hand held cordless. The battery runs for about 30 minutes unless I run it on high power ...." Read more

241 customers mention217 positive24 negative

Customers find the vacuum cleaner easy to use. They mention that the power switch is easy to press and release, the attachments are easy to attach and use, and the electronic setting controls are easy. The flex-tube is handy and it is very easy to switch to the hand-held unit only. It is also easy to assemble and set up, and is quicker to put into operation.

"...It looked so easy on TV, but really? Could it be? What did people "really" think?..." Read more

"...of the unit so you don't have to bend down all the time - this is so convenient and intuitive I hate the rocket for not having it now..." Read more

"...Easy to clean, easy to use. It is very powerful. I am pretty sure on carpet mode it would pull itself if I wasn't holding on to it...." Read more

"...It is very easy to use as it doesn't have a cord to deal with and is super light. In sweeping, it out performed a Dyson, Bissell, and i-Roombot...." Read more

177 customers mention140 positive37 negative

Customers like the ease of cleaning with the vacuum cleaner. They mention that it's easy to empty the dust bin, does a decent job of cleaning carpet, and is great for in-between cleanings. It also does surprisingly good job cleaning up crumbs that children leave behind. The suction is good, and the Duo Clean rollers grab every speck of dirt. The cleaning time is easily cut in half, and they love the convenient Shark Duo clean system.

"...My cleaning time is easily cut in half...." Read more

"...Easy to clean, easy to use. It is very powerful. I am pretty sure on carpet mode it would pull itself if I wasn't holding on to it...." Read more

"...The suction is good, the Duo Clean rollers grab every speck of dirt (except by the edges) and does a great job on everyday pick ups, which is what I..." Read more

"...Yes, the bin needs to be emptied after every use, but we have two large dogs with lots of hair...." Read more

91 customers mention87 positive4 negative

Customers like the cordless design of the vacuum cleaner. They say it's a life saver, and they appreciate the cord-free freedom. Some customers also mention that the vacuum is lightweight and easy to use.

"...The Shark is cordless, and can go from room-to-room, and floor-to-floor, all over the house without looking for an electrical outlet...." Read more

"...It has come in handy and is an easy-to-use feature.* Cordless - one of the primary reasons we selected this is how convenient the cordless..." Read more

"...The battery is removable, so I can replace it with a freshly charged one, as needed...." Read more

"...It is super easy to use, it unfolds in a second, no cords, no tangling, no wrapping the hose around your legs, no reaching for that last extra inch..." Read more

346 customers mention239 positive107 negative

Customers are mixed about the suction of the vacuum cleaner. Some mention that the suaction and animal hair pick up is amazing, and the level of cleaning power is excellent. However, others say that debris gets trapped in the head and clogs the head.

"...It picks up all the cat food around the bowl and larger items on the floor without my having to grab the long attachment and remove the..." Read more

"First of all this has great suction for a cordless...." Read more

"...But the bristles seem to grab it so tightly that I can barely clean it off. Not pleased with that part of it...." Read more

"...It really does suck up EVERYTHING! Make sure cords, curtains, and clothing do not get in the way...." Read more

307 customers mention159 positive148 negative

Customers are mixed about the battery life of the vacuum cleaner. Some mention that it has good suction and the battery power is pretty good. However, others say that the pick up is ok but the battery only lasts about 15 minutes, and it often dies before they can even finish one floor of their house.

"...Having two batteries is cool. I honestly tried the higher power and the battery lasted like 10 minutes...." Read more

"...The batteries are another story. It takes 3.5 hours to recharge (per the instruction manual)...." Read more

"...The battery life is good and it is pretty lightIt costs a bit , but worth every pennyEdit..." Read more

"...The battery only lasts a half hour (I you have more than 700 sq. ft. to vacuum you better get a backup)..." Read more

132 customers mention47 positive85 negative

Customers are mixed about the value of the vacuum cleaner. Some mention it's well worth the money, not expensive, and worth buying the extra attachments. However, others say that it'll never be worth the price, is terrible, and has a less than desirable canister.

"...Update: 08/04/2020 -My power head just started going 1/4 speed & is of no use...." Read more

"...It is worth buying the extra attachments as the multifunction crevice tool is ok but not great (the brush doesn't stay in place)..." Read more

"...However, given the less than desirable canister, I would wait for the Dyson to drop its price and get the V10...." Read more

"...I was so excited to get this item.However, I’m less than impressed with the opporation.On high power, it works great. It’s very powerful...." Read more

Pet owners beware
3 Stars
Pet owners beware
This vacuum is strong and very effective. It does great work. In fact, I now cringe to think how poorly our old vacuum was working and, thus, how dirty the rugs were. I have now had it for about 2 months. I would look into returning it but we are beyond the 30 days. What will I do? Buy a Miele and use this one for the quick jobs. Now for the issues:The rating is a 3 primarily because we have a golden retriever and it is not optimal for longer fur animals though I think it would be fine for short hair dogs. The fur has gotten trapped in the small wheels that are adjacent to the silver roller with the orange bristles and has jammed them. This happened after one of the first times we used it. See photo. We had to pry the fur out of them since there appears to be no way to remove this fixed roller for access. Consequently, we are unable to completely clean it. The fur has also matted in the narrow space between the 2 rollers. So what have I learned? This vacuum requires LOTS of cleaning and I now vacuum 3 times a week so the vacuum does not have to deal with too much fur and because the house needs it! Our house is 1600 sq ft. We have 2 rugs: both low pile and hardwood or tile everywhere else. I empty the bin 3 times and clean the rollers at the same time. The second empty comes after the dining room rug and the entry hall runner as these are the fur catchers. I find this high maintenance. I also happen to have long hair and it gets wrapped around the silver roller and I use a scissors to cut through it to ensure this roller is cleaned thoroughly of hair and fur each time I empty the bin. The roller does have 2 grooves that I use to guide the scissors, so thanks for that. The other filters get cleaned once a week. Bottom line, it is a pain in the kazoo to clean.So, many of you may think I did not think this purchase through. Well, maybe not, but I do not recall anyone mentioning the amount of cleaning the vacuum would require. Cordless and the 2 batteries were very appealing. Again, the vacuum is good. It is just really high maintenance if you have a pet with long fur.Two other negatives for me:1. The vacuum is heavy in my hand. My hand and wrist are done by the time I complete the job. I am used to a wand and canister.2. The accessories are cheesy.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Reviewed in the United States on April 23, 2018
Color: Blue StreamVerified Purchase
111 people found this helpful
Report
Reviewed in the United States on December 8, 2017
Color: Blue StreamVerified Purchase
6 people found this helpful
Report
Reviewed in the United States on August 22, 2018
Color: Blue StreamVerified Purchase
One person found this helpful
Report

Top reviews from other countries

Tony Carpenter
4.0 out of 5 stars Does most things very well. Very pleased with this purchase.
Reviewed in Canada on June 4, 2020
Color: GrasshopperVerified Purchase
Dayna
5.0 out of 5 stars Compatible with carpet warranty
Reviewed in Canada on March 21, 2020
Color: Blue StreamVerified Purchase
Doris
5.0 out of 5 stars Great value, good battery life, and the flex is very convenient
Reviewed in Canada on July 13, 2018
Color: Blue StreamVerified Purchase
2 people found this helpful
Report
Ed Hardwick
4.0 out of 5 stars A very good vacuum
Reviewed in Canada on June 24, 2020
Color: Blue StreamVerified Purchase
Neil T.
5.0 out of 5 stars Brilliant portable vacuum cleaner
Reviewed in Canada on May 15, 2019
Color: Blue StreamVerified Purchase