AO Smith vs AO Smith
Which Water Purifiers should you buy?
AO Smith Z2+ Luxe RO Under-Sink Water Purifier
AO Smith Z5 Pro RO Alkaline Water Purifier (CFM+SCMT)
Final Verdict: AO Smith Z2+ Luxe RO Under-Sink Water Purifier
Why choose AO Smith?
If your kitchen design specifically calls for a hidden purifier — no visible wall unit, just a small tap — the AO Smith Z2+ Luxe is the only under-sink option we found worth featuring. The catch is honesty about proof: only 33 reviews back this up, thin compared to nearly everything else in our lineup, so treat the 4.3★ rating as promising rather than exhaustively tested.
Why choose AO Smith?
The AO Smith Z5 Pro offers copper-fortified alkaline water across all major Indian water sources, but with only 162 reviews and just 1 unit left in stock at last check, we'd point most buyers toward the better-proven Native M1 (7,161 reviews, similar price) or KENT Grand RO instead, unless you specifically want this exact AO Smith model.