AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) vs Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU)
Side-by-side comparison between AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) and Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU). Compare tested benchmark scores, real-world Indian prices, specs, and trade-offs.
AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification)
Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU)
Which one should you buy?
Both AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) and Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU) are evenly matched. If saving money is your priority, AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) saves you ₹19,000.
Feature & Spec Breakdown
| Feature / Spec |  AO SmithAO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification)₹24,990 |  Blue StarBlue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU)₹43,990 |
|---|---|---|
Latest Indian Street PriceAO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) is more affordable | ₹24,990 Winner | ₹43,990 |
Tested Quality Score | 9.1 / 10 | 9.1 / 10 |
Purification Technology | Multi-Stage RO + UV + UF + Active Mineral Enrichment | — |
TDS Handling Capacity | Up to 2,000 ppm (Borewell, Tanker & Municipal Tap) | — |
Storage Tank Volume | 7.0 – 9.0 Litres Food-Grade Tank with UV Disinfection | — |
Water Recovery Efficiency | 35% to 60% Eco High Recovery | — |
Filter Replacement Interval | 6,000 to 12,000 Litres (1 to 2 Years) | — |
Warranty & Installation | 1 Year Comprehensive + Free Nationwide Installation | — |
Cooling Capacity | — | 1.5 Ton (120 - 180 sq. ft.) |
Energy Efficiency | — | 5 Star BEE Rating (ISEER 5.2+ Energy Saver) |
Condenser & Coils | — | 100% Grooved Copper Tubes with Anti-Corrosion Coating |
Compressor Tech | — | Variable Speed Inverter Rotary Compressor |
Stabilizer-Free Operation | — | 130V to 285V Built-in Voltage Protection |
Warranty | — | 1 Year Comprehensive + 5 Years PCB + 10 Years Compressor |
Where AO Smith Excels
- Instant 45°C and 80°C hot water on demand with child lock
- Green RO technology saves 2x more water than standard ROs
- Sleek premium aesthetic for modular kitchens
Where Blue Star Excels
- Excellent value for money in Indian market
- Backed by official brand warranty across India
- High customer satisfaction rating
Our Practical Take
When choosing between AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) and Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU), consider your primary everyday use case. AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification) highlights Instant 45°C and 80°C hot water on demand with child lock, while Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU) offers Excellent value for money in Indian market.
Who Should Buy AO Smith Z9 Green RO Water Purifier (Hot & Normal Water, 8-Stage Purification)?
- •Families with infants, senior citizens, green tea lovers, and modern modular kitchens
Who Should Buy Blue Star 1.5 Ton 5 Star Inverter Split AC (Copper, IC518YNU)?
- •Shoppers seeking a reliable, high-performing model with dependable after-sales service
Related Buying Advice
For a standard bedroom up to 120 sq. ft, buy a 1 Ton Inverter AC. For 130–180 sq. ft, choose 1.5 Ton. If the room is on the top floor with direct roof sun or large west-facing windows, size up by 0.5 Ton. Look for an ISEER rating above 5.0 for maximum power savings.
Home AppliancesFor Indian winter pollution where AQI crosses 400+, insist on a True HEPA H13 filter with a Clean Air Delivery Rate (CADR) of at least 300 m³/hr for bedrooms and 450+ m³/hr for living rooms. Always calculate annual filter replacement cost (₹2,000–₹4,000) before choosing a brand.
Home AppliancesIf your input water TDS is below 250 ppm (municipal / Kaveri / Ganga / Yamuna river water), you DO NOT need an RO; a UV+UF purifier provides 100% sterile water with zero water wastage and zero mineral loss. If input water TDS exceeds 300–500 ppm (borewell or tanker water with heavy dissolved salts), an RO purifier with mineralizer is mandatory.
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