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A. O. Smith

A. O. Smith ProPlanet P4 Pro

A. O. Smith ProPlanet P4 Pro is a wall- or counter-mounted 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank water purifier with a 5-litre tank and a purification rate of 15 litres an hour. Stated water recovery is 60%.

In short

A. O. Smith ProPlanet P4 Pro is a water purifier from A. O. Smith. From ₹24,900 in India. Its Comparezi Score is 45.8 out of 100, ranked #14 of 16 water purifiers. Key specifications: technology 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank, storage 5 litres. Among water purifiers here it fits best for municipal / corporation supply and 1 to 3 and less water wasted.

Comparezi Score
#14 of 16
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Technology
100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank
Storage
5 litres

Where to buy

Store links are not paid: prices are copied from each store's own page with the date checked, and Comparezi earns only from labelled ads. How we earn

Prices checked 1 week ago.

Comparezi Score

How the 45.8 was computed

Methodology v1 →
FactorThis productPosition in categoryPoints
Water recovery 60%
78%
16.7
UV Yes has it 14.3
UV in tank Yes has it 7.1
Warranty 1 year
25%
3.6
Storage 5 litres
14%
3.1
Purification rate 15 L/h
5%
1.0
TDS / mineral control (not published, left out) — not recorded 0.0
Max input TDS (not published, left out) — not recorded 0.0
App / smart features (not published, left out) — not recorded 0.0

Each factor is placed between the lowest and highest value in Water Purifiers (0-100 %), multiplied by its weight, and summed. It is a computed figure, not a rating, and never uses reviews.

Pros

  • UV light inside the storage tank keeps stored water treated

Cons

  • Smaller storage tank than 84% of the 66 water purifiers on Comparezi that state it (5 litres)

Who should buy it

  • Best for Municipal / corporation supply · Where does your water come from? #1 of 69 water purifiers for this
  • Best for 1 to 3 · How many people will drink from it? #3 of 69 water purifiers for this
  • Best for Less water wasted · What matters most? (pick any) #3 of 69 water purifiers for this

Who should avoid it

  • Not ideal for 4 to 6 · How many people will drink from it? #59 of 69
  • Not ideal for 7 or more · How many people will drink from it? #59 of 69
  • Not ideal for Big tank · What matters most? (pick any) #57 of 69

Full specifications

Purification

Purification technology 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank
RO Yes
UV Yes
UV in tank Yes
Alkaline Yes
Copper / zinc infusion Yes
Purification stages 8

Capacity

Storage 5 litres
Purification rate 15 L/h
Water recovery 60%

Build and features

Installation Wall or counter top
Power 60 W
Tank material Food safe, non-toxic, engineering grade plastics

Ownership

Warranty 1 year
Warranty terms 1-Year Comprehensive Warranty* (including all filters and RO membrane)

About the ProPlanet P4 Pro

A. O. Smith ProPlanet P4 Pro is a wall- or counter-mounted 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank water purifier with a 5-litre tank and a purification rate of 15 litres an hour. Stated water recovery is 60%. It is one of 6 A. O. Smith water purifiers and 69 water purifiers compared on Comparezi.

A. O. Smith ProPlanet P4 Pro at a glance

  • Technology: 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank
  • Storage: 5 litres
  • Purification rate: 15 L/h
  • Water recovery: 60%
  • Stages: 8
  • Installation: Wall or counter top
  • Warranty: 1 year

Purification

A. O. Smith lists the purification as 100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank. RO (reverse osmosis) removes dissolved salts, which matters when your water's TDS is high (borewell or tanker water); for low-TDS municipal water it is often not needed. UV treats bacteria and viruses, and a UV lamp in the tank keeps stored water treated. It also has copper/zinc infusion and an alkaline stage, as described by A. O. Smith.

Capacity and water use

The tank holds 5 litres. It purifies about 15 litres an hour, as stated. Stated water recovery is 60%: for every 100 litres that go in, about 60 litres come out purified and 40 litres go to the drain. Rated power: 60 W. Installation: wall or counter top. Tank material: Food safe, non-toxic, engineering grade plastics.

Running and ownership

Warranty: 1 year (1-Year Comprehensive Warranty* (including all filters and RO membrane)). Filters and the RO membrane are a running cost; ask the brand for the annual maintenance plan price before you buy.

How the A. O. Smith ProPlanet P4 Pro compares

Of the 66 water purifiers on Comparezi with a stated tank size, 56 have a bigger tank and 8 are level with it. Of the 40 water purifiers on Comparezi with a stated purification rate, 30 purify faster and 8 are level with it. Of the 21 water purifiers on Comparezi with a stated water recovery, 2 waste less water and 7 are level with it.

Similar water purifiers from other brands

Other A. O. Smith water purifiers

See every A. O. Smith product on Comparezi.

Sources

Checked 18 October 2026. Figures the brand does not state are left out rather than estimated. Prices on this page come from dated store checks, not from this text. See how Comparezi checks data.

Alternatives

Alternatives to the ProPlanet P4 Pro

All water purifiers →
  • RO+UV+UF+Alkaline+Copper+TDS Control (under-the-counter, built-in hydrostatic tank) Technology
  • 6 litres Storage
₹22,799

Livpure

Eterna Premia

  • RO + UV + UF + CU Guard + Alkaline Enhancer Technology
  • 7 litres Storage
₹16,490
  • 100 % RO & UV technology Technology
  • 7 litres Storage
₹17,890

Same money

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Head to head

Compare the ProPlanet P4 Pro

Questions

ProPlanet P4 Pro FAQs

100% RO + SCMT + Copper Fortified Mineraliser + Alkaline + UV LED in tank, as listed by A. O. Smith.

5 litres.

Stated recovery is 60%, so about 40 of every 100 litres go to the drain.

1 year, as stated by A. O. Smith.

Yes, it is rated at 60 W.

Data sources

  • Entered in admin
  • Manufacturer official pages

Last updated

Product details

Prices checked

Disclosure

Links to sellers are not paid. Comparezi earns only from labelled ads, which never affect the Comparezi Score, the order of sellers, or the price shown, which is what the seller listed when we checked.

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