AO Smith vs Aquaguard: Which Water Purifier Is Better for Indian Homes?

Explore the wide range of better-performing air purifiers from AO Smith and Aquaguard to find out which one of them offers the top-notch results. The models from these brands can certainly elevate the quality of the supply you are getting with their high-end technology.

AO Smith vs Aquaguard: Which Water Purifier Is Better for Indian Homes?

Generally, most of the Indian tap and borewell water often consists of high TDS, germs, and hard supply problems. That is why choosing a suitable RO purifier with all the necessary purification systems, like a good amount of stages of purity, copper technology, and many more, is important for the health of your family. However, AO Smith water purification devices are known for RO UV technology, mineralizer, and stylish design, whereas Aquaguard by Eureka Forbes is trusted for Active Copper technology, TDS controller, and a strong service network. But which is better, AO Smith or Aquaguard for hard water, price, and maintenance? Here, you will get an AO Smith vs Aquaguard water purifier comparison of features and their offerings and find out about the perfect appliance for your home.

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Understanding Water Quality Challenges in Indian Homes

  • High TDS in Indian tap water is a big problem, as borewell water and municipal water generally have a high TDS that is above 1000 ppm, making the water salty and unsafe for consumption.
  • Generally, in our water supply connection, there is very high hardness that has too much calcium and magnesium, which damages hair, skin, and home appliances, and because of this, the purification appliances are a must-have in every home.
  • Nowadays, water is also contaminated by bacteria, viruses, and chemicals like lead or arsenic, which is risky for health, especially for kids, and can be reduced by these systems.
  • Smell and bad taste in drinking water come from chlorine, rust, and dissolved impurities in old pipelines, as well as a pH imbalance, which also makes water too acidic or alkaline, affecting digestion and long-term health.

That is why Indian homes need a suitably perfect water purifier with RO UV, TDS controller, and mineral retention to get safe drinking water daily.

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Vetted Options

Every product we recommend is carefully selected through a thoughtful blend of primary research and in-depth analysis of trusted sources.

  • 100% RO Purifier with Silver Shield

    AO Smith Z9 Pro Water Purifier

    This particular AO Smith 10-litre water purifier is certainly suitable for large-sized Indian homes, as it can also give a hot and ambient supply instantly at 45 °C warm and 80°C hot. Moreover, it comes with an 8-stage deep purification process, which removes all types of harmful chemicals, germs, and high TDS from borewell, tanker, and municipal supply. It also has a patented Side Stream RO membrane that ensures 100% clear pass through the RO, while blocking heavy metals and impurities. Apart from this, the alkaline water purifier present in the system adds essential minerals and balances the pH level for a natural taste of the clean outcome. Additionally, the copper-infused mineralizer enriches the intake with copper for healthy hydration. 

    How is this model better than the Aquaguard Delight NXT?

    This AO Smith Z9 Pro offers 10-litre storage and instant hot output at 80°C in a stainless-steel tank, while the Aquaguard Delight NXT has only 6.2-litre storage and no hot feature.  

    Specifications:

    • BrandA. O. Smith
    • Model NameIGR010082OZBHC5
    • Product Dimensions36.9L x 32.6W x 48.2H Centimeters
    • MaterialPlastic
    • Capacity10 litres
    • ManufacturerA.O. Smith, A.O. Smith India Water Products Pvt. Ltd.
    • Country Of OriginIndia
    • ASINB0DCK453V1

    Reasons to buy:

    Features multi-stage RO and Silver Charged Membrane tech for baby-safe water.

    Generous 10-liter storage tank is great for daily family needs

    Premium, modern aesthetic that fits nicely on kitchen countertops.

    Reason to avoid:

    None

    01
  • Upto 60% Water Savings

    Aquaguard Delight NXT Water Purifier

    This specific Aquaguard water purifier is suitable for almost every Indian home of small to medium-sized families, as it holds the capacity of around 6.2 litres that can efficiently tackle your needs. Moreover, the appliance has the ability to save up to 60% water with its Aquasaver technology that minimises the wastage and makes it more sustainable. The system consists of a 9-stage purification process with RO+UV+UF, which gives 99.9999% bacteria and 99.99% virus reduction. Along with this, the particular RO from Aquaguard comes with an Ultra Filtration, which gives a crystal clear supply by removing fine dust from it. Additionally, it works well with all sources like municipal, borewell, and tanker water, along with having a smart LED that shows change filter indicator, tank full, and service alerts. 

    How is this model better than the AO Smith Z9 Pro?

    This Aquaguard Delight NXT saves 60% water with Aquasaver tech and has a Taste Adjuster for customising flavour, while the AO Smith Z9 Pro has higher water rejection and no taste control.  

    Specifications:

    • BrandAquaguard
    • Model NameDelight NXT
    • Product Dimensions32L x 27W x 48H Centimeters
    • MaterialAcrylonitrile Butadiene Styrene
    • Capacity6.2 litres
    • ManufacturerAquaguard, Eureka Forbes Limited
    • Country Of OriginIndia
    • ASINB0CW5YZ6VV

    Reasons to buy:

    Saves up to 60% more water compared to standard RO purifiers.

    Robust RO+UV+UF system ensures highly filtered, safe drinking water.

    Re-infuses essential nutrients like calcium and magnesium back into the water.

    Reason to avoid:

    None

    02
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  • Advanced 8-stage Purification

    AO Smith Z5 Pro RO Water Purifier

    This AO Smith Z5 pro water purifier is perfect for Indian homes with hard water sources, as it has an advanced 8-stage purification, better than RO UV UF TDS filters that can give the safest drinking supply daily. Along with this, it works with all sorts of sources like borewell, tanker, and municipal water that contains around 200 to 2000 ppm TDS, while being equipped with RO + SCMT technology, which removes chemicals and phosphates in an efficient way. Apart from this, the appliance also contains an Alkaline Min-Tech and Copper Mineralizer that adds all essential minerals and copper positivity for healthy, natural-tasting results. In addition to it, there are other useful specifications, like it holds 5 litres of storage capacity, energy saving mode, and an auto cut off option, to keep water pure while saving power. 

    How is this model better than the Aquaguard Enrich Marvel?

    This AO Smith Z5 Pro has Alkaline Min-Tech and a smart digital TDS display for real-time quality tracking, while the Aquaguard Enrich Marvel lacks pH balancing and live TDS monitoring. 

    Specifications:

    • BrandA. O. Smith
    • Model NameAO Smith Z5 Pro Water Purifier
    • Product Dimensions38L x 26.7W x 46H Centimeters
    • MaterialPlastic
    • Capacity5 litres
    • ManufacturerA.O. Smith, A.O. Smith India Water Products Pvt. Ltd.
    • Country Of OriginIndia
    • ASINB0D1XL2D78

    Reasons to buy:

    Offers highly thorough water filtration.

    Adds essential minerals and maintains good pH levels.

    Handles municipal, tanker, and high-TDS borewell water easily.

    Reason to avoid:

    None

    03
  • Mega Sediment Filter

    Aquaguard Enrich Marvel Water Purifier

    This Aquaguard water purifier with 6.2 liter water capacity is best for Indian homes with hard supply sources, as it uses NanoPore Filter Technology that is sufficient to give a 2-year filter life to protect it from microplastics, pesticides, lead, and mercury. The system consists of a 10-stage purification with RO+UV+UF, which removes bacteria, viruses, and cysts efficiently to provide you with a cleaner and healthier outcome. Along with this, the model comes with an ultra-filtration 2X, which gives crystal clear results, along with 3-in-1 Active Copper Technology, which additionally adds safe copper for ultimate health positivity. Additionally, it works with all sources like municipal, borewell, and tanker water up to 2000 ppm TDS. 

    How is this model better than the AO Smith Z5 Pro?

    This Aquaguard Enrich Marvel has 2-year filter life covering 10,000 litres and 10-stage purification with water-saving recovery, while the AO Smith Z5 Pro has 5-litre storage and needs more frequent maintenance.  

    Read More in Home Solutions and Electronics.

    Specifications:

    • BrandAquaguard
    • Model NameAquaguard Enrich Marvel RO+UV+UF 2X
    • Product Dimensions32L x 27.8W x 48H Centimeters
    • MaterialAcrylonitrile Butadiene Styrene
    • Capacity6.2 litres
    • ManufacturerAquaguard
    • Country Of OriginIndia
    • ASINB0F5PVMXWZ

    Reasons to buy:

    Features robust RO+UV+UF filtration to completely clear out modern pollutants, bacteria, and viruses.

    Built-in Double Life/NanoPore filters reduce the hassle and cost of frequent replacements.

    Infuses the natural goodness of copper into your drinking water right from the first drop.

    Reason to avoid:

    None

    04
  • 10L Storage

    AO Smith Z1 Water Purifier

    This AO Smith water purifier is great for Indian homes that need UV-purified hot water, which has a large family size to serve, as it holds a high storage capacity of around 10 litres. Moreover, you will get 3 modes with it, which are room temperature, warm 45°C, and hot 80°C, stored in a stainless-steel tank for a healthier and cleaner intake. Additionally, it comes with a 5-stage purification with UV Technology, including a pre-filter, sediment filter, and Silver Activated Post Carbon. Along with this, it consists of double protection with UV + UF Ultra Fine technology, which certainly kills all types of bacteria and removes fine dirt for safe drinking water. In addition to it, the appliance offers features like night assist glow light that helps you find the purifier at night and makes your kitchen look stylish, and UV Life Alert tells you when to change the UV lamp.

    How is this model better than the Aquaguard Nexen?

    This AO Smith Z1 offers instant hot output with 10-litre stainless-steel tank and Night Assist, while the Aquaguard Nexen has no hot feature and only 6-litre storage.  

    Specifications:

    • BrandA. O. Smith
    • Model NameZ-Series UV Water Purifier with Hot Water
    • Product Dimensions14.5L x 12.8W x 19H Centimeters
    • MaterialPlastic
    • Capacity10 litres
    • ManufacturerA.O. Smith, A.O. Smith India Water Products Pvt. Ltd.
    • Country Of OriginIndia
    • ASINB0755JMF9G

    Reasons to buy:

    Offers a generous 10-liter storage tank.

    Features multi-stage filtration, including a pre-filter and a 11W UV lamp.

    The hot water is safely stored in a hygienic steel tank.

    Reason to avoid:

    Not for high-TDS water

    05
  • 2 Year Filter Life

    Aquaguard Nexen Copper Water Purifier

    This Aquaguard Active copper water purifier in 6L storage capacity has a 10-stage purification with RO+UV+UF and NanoPore Filter Technology that removes microplastics, pesticides, lead, and mercury. Along with this, it efficiently works for all sources like municipal, borewell, and tanker water with TDS up to 2000 ppm, along with a 2-year filter life that allows users to enjoy low maintenance for up to 10,000 litres. Moreover, it comes with an RO Maxx 2X that protects the system from industrial waste, while UV e-boiling makes water as pure as more than 20 minutes. Additionally, it has a 3-in-1 Active Copper Technology that adds safe copper to water as per BIS rules, and a mega sediment filter, which removes dust and mud to increase filter life. 

    How is this model better than the AO Smith Z1 Hot+ normal UV?

    This Aquaguard Nexen has a 10-stage RO+UV+UF for high-TDS up to 2000 ppm and a 2-year filter life, while the AO Smith Z1 is UV-only and not suitable for hard water.  

    Specifications:

    • BrandAquaguard
    • Model NameAQUAGUARD ENRICH NEXEN RO+UV 2X
    • Product Dimensions32L x 27W x 48H Centimeters
    • MaterialAcrylonitrile Butadiene Styrene
    • Capacity6 litres
    • ManufacturerEureka Forbes Ltd
    • ASINB0FD39MDP5

    Reasons to buy:

    Filters last up to 2 years or 10,000 litres.

    10-stage purification handles modern pollutants like microplastics.

    Infuses copper benefits into the water from the first drop.

    Reason to avoid:

    None

    06

Better Water Purifier For Indian Homes: Features Comparison

There are many water purifier brands available all over, and AO Smith and Aquaguard are considered to be among the best of the brands. And the buyer needs to be equipped with all the necessary information that can help them find a suitable appliance for themselves.

Product Name

Purification Tech

Storage

TDS Level

AO Smith Z9 Pro Black

RO + SCMT + Copper + Alkaline + Min-Tech

10L Stainless Steel

500-1999 ppm

Aquaguard Delight NXT Aquasaver

RO + UV + UF + MC Tech

6.2 Kg unit

Up to 2000 ppm

AO Smith Z5 Pro

RO + SCMT + Alkaline + Copper Fortified

5L

Up to 2000 ppm

Aquaguard Enrich Marvel RO+UV+UF 2X

RO+UV+UF

6L

Up to 2000 ppm

AO Smith Z1

UV + UF

10L

Up to 2000 ppm

Aquaguard Enrich Nexen RO+UV 2X

RO + UV + Copper

6L

Up to 2000 ppm

Read More:

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Faq's

  • Is AO Smith or Aquaguard better for hard water treatment in India?
    Both work well for hard water. AO Smith with SCMT and Aquaguard with 60% Aquasaver are best for high TDS borewell water.
  • What is the typical filter replacement cost for AO Smith vs Aquaguard in India?
    According to the information available on the internet, AO Smith filters cost ₹2500-4000 yearly. Aquaguard costs ₹2000-3500 yearly. Aquaguard Enrich models offer a 2-year filter life, saving money.
  • Which brand offers better value for money in the long run for an Indian household?
    Aquaguard gives better long-term value with a 2-year filter life and cheaper service. AO Smith offers premium features but costs more.

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