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1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W) vs 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)

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Quick verdict

  • 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) is better for low electricity bills.
  • 1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W) is better for cooling in extreme heat.
  • 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) leads on overview.
  • 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) leads on cooling and efficiency.
  • 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) offers better overall value (21.0 points per ₹10,000).
  • 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) has the higher Comparezi Score (81.9).
  • 1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W) 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

Overview 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)
Cooling and efficiency 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)
Value 1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)

Specifications side by side

Spec
1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W)
1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)
Overview
Type
Split
Split
Capacity
1 ton
1 ton
Energy rating
4 star
5 star (better)
Inverter compressor
Yes
Yes
Model number
CS/CU-NU12BKY4W
125INV Vectra Zen Silver
Launched
2026
2026
Cooling and efficiency
ISEER
5.2 W/W
5.6 W/W (better)
Star label year
—
2026
Cooling capacity
3,450 W (better)
3,400 W
Annual energy use
514 kWh/year
470.35 kWh/year (better)
Cools at outdoor temperature up to
55 °C (better)
52 °C
Convertible modes
8-in-1
5 Step Adjustable Mode
Build
Condenser coil
Copper
Copper (with anti-corrosion coating)
Copper condenser
Yes
Yes
Refrigerant
R32
—
Noise level
32 dB
—
Features
Wi-Fi / app control
Yes
—
Filters
PM0.1 Filter
Anti Dust Filter with Anti microbial coating
Self-clean
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.
Standard Installation is FREE with 5 year comprehensive warranty.

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 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W)

₹37,990

1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)

₹38,990

Pros and cons

1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W)

  • Pro: Wi-Fi control from a phone app

1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver)

  • Pro: BEE-label energy use of 470.4 kWh a year, lower than 81% of the 22 1-ton split ACs on Comparezi that state it

Which should you buy?

1 Ton 5 Star Inverter Split AC (125INV Vectra Zen Silver) if you want the strongest overall specification: it has the higher Comparezi Score (81.9).

1 Ton 4 Star Inverter Split AC (CS/CU-NU12BKY4W) if price matters most: it is the cheaper option at ₹37,990.

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