Skip to content

Water Purifiers · head to head

U2 Pro+ vs Z3 (Onyx Black)

Save New comparison

A. O. Smith

U2 Pro+

₹21,490
1 spec win

Quick verdict

  • Z3 (Onyx Black) is better for not sure.
  • Z3 (Onyx Black) leads on purification.
  • U2 Pro+ leads on build and features.
  • U2 Pro+ is the cheaper option at ₹21,490.

Computed from stored specifications, the published water purifiers scoring rules and recorded prices. Not an opinion.

Winners by area

Purification Z3 (Onyx Black)
Build and features U2 Pro+

Specifications side by side

Spec
U2 Pro+
Z3 (Onyx Black)
Purification
Technology
Next-Gen UVC LED (TwinPure) + Copper Mineraliser
RO + UV LED + Antioxidant + Copper + Alkaline
RO
No
Yes
UV
Yes
Yes
Alkaline
—
Yes
Copper / zinc infusion
Yes
Yes
Purification stages
6
8 (better)
Max input TDS
250 ppm
2,000 ppm (better)
Capacity
Storage
6 litres
6 litres
Purification rate
—
15 L/h
Water recovery
—
55%
Build and features
Installation
Under sink
Under sink
Power
36 W (better)
48 W
Tank material
Food safe, non-toxic, engineering grade plastics
Food safe, non-toxic, engineering grade plastics
Colours
—
Onyx Black
Ownership
Warranty
1 year
1 year
Warranty terms
1 year Comprehensive Warranty
Z3 comes with 1 year comprehensive warranty that covers all filters, RO Membrane and electrical parts.

A tick marks the better value where the category rules say higher (or lower) is better. Text values are shown without a winner. Ties have no winner.

Price and availability

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

U2 Pro+

₹21,490

Z3 (Onyx Black)

₹29,990

Pros and cons

U2 Pro+

  • Pro: Rated for input water up to 250 ppm TDS, higher than 81% of the 11 non-RO purifiers on Comparezi that state it

Z3 (Onyx Black)

No stated figure stands out against similar models on Comparezi, either way.

Which should you buy?

U2 Pro+ if price matters most: it is the cheaper option at ₹21,490.

More

Other water purifiers comparisons

View all →
Compare