AO Smith Vs Kent Water Purifier: Which is Best for Home Use? (2025)

Know which is the best Water purifier for home from the top leading brands- Kent and AO Smith! Compare purification technology, advanced features and much more with our latest review from Amazon, shedding light on AO Smith Vs Kent.

AO Smith Vs Kent Water Purifiers

Having a water purifier at home is a basic necessity to have access to healthy drinking water. And if you are still left behind, don't worry! The top leading water purifier brands, such as Kent and AO Smith, are the ones to be trusted! These two water filter brands both hold a greater market share in India and work with advanced features. AO Smith Water Purifiers use advanced technologies such as Min-Tech and RO+ SCMT to effectively remove impurities, bacteria, viruses, and dissolved solids while retaining essential minerals for taste and health benefits. On the other hand, Kent Water Purifiers are committed to providing clean and healthy water by using Mineral RO technology and UV disinfection to get rid of viruses, bacteria and more. Ultimately, both brands work to provide healthy drinking water, but choosing one still requires a comparison between top models. Let us help you out on that with our reviews from Amazon featuring both AO Smith and Kent. 

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    AO Smith Z9 Pro Black Instant Hot and Ambient RO+SCMT+Copper+Alkaline+Mintech | Hot Water in Stainless Steel Tank | Water | 10L Storage | 8-Stage Purification | Water Purifier for Home

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    Ensuring you get 100% RO purified water with all the present essential minerals and benefits of copper, this AO Smith water purifier uses copper-fortified mineraliser and aids in retaining natural taste with the Alkaline Min-Tech. Providing convenience at your fingertips, this appliance provides one-touch electronic dispensing at the press of a button. The patented technology with RO membrane ensures 100% water passes through the RO membrane, ensuring no impurities stay behind. Plus, being one of the best water purifiers in India, this AO Smith RO water filter uses 8-stage purification and double protection to prevent any microbial contamination post RO purification. 

    Specifications:

    • Brand :AO Smith
    • Package Information:Dispenser
    • Installation Type :Countertop
    • Upper Temperature Rating ‎80 Degrees Celsius:‎80 Degrees Celsius
    • Lower Temperature Rating :45 Degrees Celsius

    Reasons to buy:

    8 Stage Purification

    One touch dispensing

    Patented technology

    Free advance pre-filter

    Reason to avoid:

    None as such

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    KENT Grand RO Water Purifier | Advanced RO Tech for Sabse Shudh Paani | RO+UF+TDS Control + UV LED Tank | 8L | 20LPH Flow | Ideal for Borewell/Tanker/Municipal Water | Largest Service Network

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    Designed with multiple purification stages, such as RO+UF+TDS Control+UVLED in the water tank for thorough purification, this water filter comes from KENT RO! The RO membrane of this purification system is fused with the housing to prevent tampering and push fitting to prevent leaks and ensure maintenance-free performance. Backed by the advanced RO membrane, this one of the best water purifiers in India assures long cartridge life to effectively remove dissolved impurities such as rust, pesticides, mercury, and more. Its state-of-the-art UV technology keeps the water free from bacteria and viruses for an extended period, and the TDS control system allows the adjustment of total dissolved salt levels, retaining essential minerals and making the water healthier as well as tastier. 

    Specifications:

    • Brand :KENT
    • Package Information:Dispenser
    • Installation Type:Wall Mount
    • Freestanding Maximum Flow Rate:‎20 Liters Per Hour
    • Supported Water TDS Level Maximum (PPM):200

    Reasons to buy:

    Advanced RO membrane

    UV In-tank technology

    TDS control system

    Activated carbon filter

    Reason to avoid:

    Less water efficient

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    AO Smith Z5+ RO+UV Alkaline Water Purifier | RO Purifier With Advanced 8-stage Purification | Copper Fortified Water| Perfect For Tanker & Borewell Water

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    Advanced with the 8-stage purification with the RO+ Next-gen UV LED protection, this AO Smith RO ensures clean and safe drinking water. The built-in UV LED deactivates bacteria and viruses, and the patented side stream RO membrane removes harmful contaminants such as microplastics and pesticides while retaining essential minerals for healthy water with great taste. You can also enjoy the goodness of copper in your water with the copper-fortified mineraliser, along with other minerals, for complete healthy hydration. Plus, with the built-in smart digital display, this filter alerts whenever the filter replacement is due. 

    Specifications:

    • Brand :AO Smith
    • Package Information :Dispenser
    • Installation Type:Wall Mount
    • Lower Temperature Rating :‎5 Degrees Celsius
    • Maximum Flow Rate :‎15 Liters Per Hour

    Reasons to buy:

    8 Stages Purification

    Smart digital display

    Goodness of Copper

    UV LED protection

    Reason to avoid:

    None as such

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    KENT Supreme RO Water Purifier | Advanced RO Tech for Sabse Shudh Paani | RO+UF+TDS Control+UV LED Tank |Auto Flush | 8L | 20 LPH | Ideal for Borewell/Tanker/Municipal Water | Largest Service Network

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     Built in with the activated carbon filter, this KENT RO water purifier removes chlorine, organic impurities, and odour-causing elements from water to help you stay fit and healthy. Having the advanced RO membrane, this one of the best water purifiers in India looks over the cartridge life to effectively remove dissolved impurities such as arsenic, mercury, fluorides, etc. The UV In-Tank technology of the KENT RO keeps the water free from bacteria and viruses for an extended period, and the multiple purification stages provide water after thorough purification. Plus the push fittings work to prevent leaks and ensure maintenance-free performance. 

    Specifications:

    • Brand:KENT
    • Package Information :Dispenser
    • Installation Type :Wall Mounted
    • Lower Temperature Rating :‎10 Degrees Celsius
    • Maximum Flow Rate:20 Liters Per Hour

    Reasons to buy:

    Advanced RO membrane

    TDS control system

    Activated carbon filter

    Multiple purification stages

    Reason to avoid:

    None as such

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    AO Smith Z2+ Water Purifier for Home with MIN-TECH | 5L Storage | 6-Stage Purification |100% RO | Under The Counter

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    Manufactured with a 5-litre capacity, this AO Smith water purifier uses patented technology to ensure 100% of the water passes through the RO membrane, ensuring no impurities are left behind. Fitting seamlessly into any modern modular kitchen decor, this AO Smith Z2+ purifier is what you need for medium homes. Backed by the mineraliser technology, this one of the best water purifiers in India aids in retaining natural taste with the essential minerals using the mineraliser technology. Plus, with 6 stages of purification and 100% of water passing through the R membrane, this water purifier gives pure water with no impurities. 

    Specifications:

    • Brand:AO Smith
    • Package Information:Dispenser
    • Installation Type:Under Sink
    • Maximum Flow Rate :‎15.01 Liters Per Hour
    • Power Source :Electric

    Reasons to buy:

    Convenient and effective storage capacity

    Tank full indicator

    Mineralizer technology

    6 stages of purification

    Reason to avoid:

    None as such

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    KENT Grand Star RO Water Purifier | RO+UV+UF+TDS Control+Alkaline+Copper+UV in Tank |.0001 Micron RO Membrane | Auto Flush Feature | 9L Tank | 20 LPH | Ideal For Borewell/Tanker/Municipal Water |Black

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    Ideal for borewell/tanker/municipal water – this KENT RO Grand Plus comes with the 9-litre capacity to fit perfectly into any mid- to large-sized home. Providing purity in every drop, this KENT RO Grand Plus removes bacteria, viruses, chemicals and dissolved impurities such as pesticides and rust to make water pure and healthy as per the desired standards. Coming with a TDS control, this purification system from KENT controls the TDS level to retain essential natural minerals in the purified water, and the auto flush for the RO membrane further helps in preventing scaling or fouling by quickly rinsing it to remove impurities from the surface. Plus, with the alkaline filter, digital display and more, this appliance supports overall health and vitality. 

    Specifications:

    • Brand :KENT
    • Package Information :Dispenser
    • Installation Type :Freestanding
    • Model Name ‎:Grand Star-B
    • Maximum Flow Rate:‎20 Liters Per Hour

    Reasons to buy:

    Multiple purification technology

    Auto flush for RO membrane

    Retains essential minerals

    Alkaline Filter

    Reason to avoid:

    Some users were not impressed with the service

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AO Smith Vs Kent Water Purifier: Best Models with Top Features 

AO Smith Vs Kent Water Purifier

Capacity

Purification Method

Installation Type

AO Smith Z9 Hot+ 

10 Litres 

8 Stage Purification, RO, Min-Tech, Alkaline

Countertop

KENT Supreme 11119

8 Litres 

RO + UV + UF + TDS Control

Wall Mount/Freestanding

AO Smith X8 

5 Litres 

8 Stages Purification, RO, Copper, UV LED

Wall Mount

KENT Supreme 11111 

8 Litres 

RO + UV + UF + TDS Control

Wall Mounted

AO Smith Under Sink 

5 Litres 

6 stages of purification, Mineralizer, RO

Under Sink

KENT Grand Star-B 

9 Litres 

RO + UV + UF + TDS Control + Alkaline

Freestanding

In conclusion, choosing between AO Smith and Kent water purifiers depends on your specific needs and preferences. Both brands offer reliable solutions with advanced technologies. AO Smith excels in RO technology and durability, while Kent is known for its UV expertise and affordability. Consider factors like water quality, maintenance, and budget to make an informed decision. Ultimately, prioritize your family's health and hydration with a water purifier that meets your requirements.

Also Read: Livpure vs Havells Water Purifier: Which Brand is Best for Your Home? (2025 Review)

Disclaimer: At HerZindagi, we prioritize providing the up-to-date information on the latest trending commodities and goods. This Article is written and vetted by our in-house category authors in sync with the Google guidelines on product reviews and shoppable content. HerZindagi is in an associate partnership, so we may earn a part of the revenue when you make a purchase. We shall not be liable for any claim under applicable laws, including but not limited to the Consumer Protection Act, 2019, concerning the products. The products listed in this article are in no particular order of priority.

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Faq's

  • What is the main difference between AO Smith and Kent water purifiers?
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    AO Smith water purifiers are known for their advanced RO technology and high-quality filters, while Kent water purifiers are popular for their UV technology and affordable pricing. Both brands offer reliable water purification solutions for home use.
  • Which water purifier is better for well water, AO Smith or Kent?
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    AO Smith water purifiers are suitable for well water, as they can handle high TDS levels and remove contaminants effectively. Kent water purifiers also work well with well water, but may require additional pre-filtration.
  • Do AO Smith and Kent water purifiers require regular maintenance?
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    Both AO Smith and Kent water purifiers require regular filter replacements and maintenance to ensure optimal performance and clean water output. Regular maintenance also helps extend the lifespan of the purifier.
  • Are AO Smith and Kent water purifiers energy-efficient?
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    Yes, both AO Smith and Kent water purifiers are designed to be energy-efficient, with low power consumption and eco-friendly features. This helps reduce your electricity bill and minimizes environmental impact.