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1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) vs 2 Ton 3 Star Inverter Split AC (CS/CU-SU24BKY3W)

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Quick verdict

  • 2 Ton 3 Star Inverter Split AC (CS/CU-SU24BKY3W) is better for cooling in extreme heat.
  • 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) leads on build.
  • 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) offers better overall value (15.1 points per ₹10,000).
  • 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) has the higher Comparezi Score (57.2).
  • 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) is the cheaper option at ₹37,990.

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

Winners by area

Cooling and efficiency Tie
Build 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W)
Value 1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W)

Specifications side by side

Spec
1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W)
2 Ton 3 Star Inverter Split AC (CS/CU-SU24BKY3W)
Overview
Type
Split
Split
Capacity
1.5 ton
2 ton
Energy rating
3 star
3 star
Inverter compressor
Yes
Yes
Model number
CS/CU-SU18BKY3W
CS/CU-SU24BKY3W
Launched
2026
2026
Cooling and efficiency
ISEER
4.5 W/W
4.5 W/W
Cooling capacity
5,100 W
6,700 W (better)
Annual energy use
877.74 kWh/year (better)
1,153.74 kWh/year
Cools at outdoor temperature up to
55 °C
55 °C
Convertible modes
8-in-1
8-in-1
Build
Condenser coil
Copper
Copper
Copper condenser
Yes
Yes
Refrigerant
R32
R32
Noise level
35 dB (better)
36 dB
Features
Wi-Fi / app control
Yes
Yes
Filters
PM0.1 Filter
PM0.1 Filter
Self-clean
Yes
Yes
Colours
White
White
Warranty
Product warranty
1 year
1 year
Compressor warranty
10 years
10 years
Warranty terms
1 year on product, +4 years on PCB and +9 years on compressor.
1 year on product, +4 years on PCB, +9 years on compressor and +4 year on ODU casing.

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

1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W)

₹37,990

2 Ton 3 Star Inverter Split AC (CS/CU-SU24BKY3W)

₹53,990

Pros and cons

1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W)

  • Pro: Wi-Fi control from a phone app

2 Ton 3 Star Inverter Split AC (CS/CU-SU24BKY3W)

  • Pro: Wi-Fi control from a phone app

Which should you buy?

1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) if you want the strongest overall specification: it has the higher Comparezi Score (57.2).

1.5 Ton 3 Star Inverter Split AC (CS/CU-SU18BKY3W) also gives the most score per rupee, so there is no trade-off between quality and price here.

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