3 min
23-October-2025

When choosing an air conditioner, one of the most important decisions you will face is whether to go for a 3 Star AC vs 5 Star AC. Both options have their advantages, but the key difference lies in their energy efficiency ratings. A 5 Star AC offers superior energy efficiency, leading to lower electricity bills over time, while a 3 Star AC can still provide great cooling but at a slightly higher cost of operation. In this ultimate guide, we will explore the differences between 5 Star or 3 Star AC, helping you make an informed decision based on your cooling needs, budget, and long-term savings.

If you are thinking of buying an AC, check your loan eligibility first. It helps you understand your budget and narrow down your options. Once you have a budget in mind, explore the latest models on Bajaj Mall. Simply visit any of Bajaj Finserv’s 1.5 lakh partner stores in over 4,000 cities, choose the model you want, and convert your purchase into Easy EMIs of up to Rs. 5 lakh. With Easy EMIs and zero down payment on select models, bringing home the right AC is simple and stress-free.

3 Star vs 5 Star AC - Key differences for efficient cooling

The hot Indian summer means only one thing - rising temperatures and increasing discomfort. To survive the summer heat without breaking a sweat, buying the best AC is a must. While you have several options to choose from, regularly using an AC can increase your monthly electricity bill. As a result, it is essential to pick the best 5 Star AC with a good Star rating. If you are wondering about the difference between 3 Star and 5 Star AC, read on to get all the information at your fingertips.

Why spend more when you can save more?

Use the Maha Bachat savings calculator to combine dealer offers, brand offers, and Bajaj offers to bring down your purchase cost. Calculate your extra savings today!

What are Star rating for ACs? BEE standards explained

The Star rating system depicts the energy efficiency of an electrical appliance. The higher the number of Stars, the more efficient it is. The Bureau of Energy Efficiency (BEE) India devised the Star rating system, with a range of 1 to 5 Star. This system ensured that commoners easily understood the energy efficiency of appliances.

A Star rating takes two parameters into account:

  • The cooling capacity, which is a measure of its ability to cool a room, is expressed in British Thermal Units (BTU).
  • The Energy Efficiency Rating (EER), which is the amount of cooling it can provide using a certain amount of power.

The highest Star rating of an air conditioner or any electronic device is 5, and the lowest Star rating is 1. Therefore, a best 5 Star air conditioner will cool your room most efficiently. It means that a 5 Star AC will cool a particular room faster while using less electricity than a 3 Star AC.

3 Star vs 5 Star AC for smart cooling – The ultimate guide

When choosing between a 3 Star AC vs 5 Star AC, understanding the difference between 3 Star and 5 Star AC is essential. A 5 Star AC offers superior energy efficiency, leading to lower electricity bills, while a 3 Star AC is more budget-friendly but tends to consume slightly more power. If you're undecided on whether to go for a 5 Star or 3 Star AC, consider factors like long-term energy savings and initial costs.

Key factors to look for while choosing a 5 Star AC in India

Before buying a 5 Star AC, consider its energy efficiency, cooling capacity, and inverter technology for consistent performance and lower power consumption. Check the AC’s noise levels, warranty, and after-sales service. Look for additional features like air purification, dehumidification, and smart connectivity. Ensure it matches the room size and has a good Energy Efficiency Ratio (EER). Lastly, read user reviews and compare prices for the best value.

How does knowing your AC’s Star rating help

An AC is not a one-time investment but has substantial recurring costs in monthly or bi-monthly electricity bills. In a country as hot as India, a high electricity bill that can derail your budget is always a possibility. A Star-rated appliance, like an AC, allows you to save on electricity costs.

3 Star vs 5 Star AC comparison - Efficiency and features

Feature

3 Star AC

5 Star AC

ISEER range

2.9 to 3.09

3.3 and above

Annual savings

Moderate savings on electricity bills

Higher savings due to better energy efficiency

Cooling speed

Standard cooling performance

Faster and more consistent cooling

Ideal usage

Occasional use or budget-conscious buyers

Frequent use and long-term savings

Price range (1.5-ton)

Rs. 31,000 – Rs. 36,000

Rs. 38,000 – Rs. 45,000


Benefits of 5 Star ACs for eco-friendly cooling

In monetary terms, the difference between a 3 Star and a 5 Star AC is that if the monthly electricity bill of a household with a 3 Star AC is Rs. 580, keeping all variables constant, a 5 Star AC will result in a bill of Rs. 500. Therefore, the total cost of ownership (TCO) of a 5 Star AC is lower in the long run than a 3 Star AC.

  • Energy efficiency: 5 Star air conditioners consume less electricity, reducing your energy bills significantly over time.
  • Eco-friendly: These ACs have lower carbon emissions, making them more environmentally friendly.
  • Long-term savings: Though initially more expensive, 5 Star ACs offer greater savings in the long run due to reduced power consumption.
  • Enhanced cooling performance: 5 Star ACs are designed for better and faster cooling, ensuring maximum comfort during hot weather.

Also read: 5 Star AC models

Benefits of 3 Star ACs for budget-conscious homes

  • Affordable upfront cost: 3 Star air conditioners are generally more budget-friendly compared to 5 Star models, making them accessible for many buyers.
  • Decent energy efficiency: While not as efficient as 5 Star models, 3 Star ACs still provide reasonable energy savings for moderate use.
  • Ideal for occasional use: Perfect for homes or spaces where the AC is not used extensively, offering good performance without high costs.
  • Balanced features: 3 Star ACs offer a balance of cost, efficiency, and cooling performance, making them a practical choice.

Also read: 3 Star AC models

How to calculate power consumption of 5 Star or 3 Star ACs

Calculating the power consumption of a 5 Star AC versus a 3 Star AC involves understanding the energy efficiency ratings of each model. The 5 Star AC consumes less power compared to a 3 Star AC, making it more energy-efficient and cost-effective in the long run. To calculate the power consumption, you need to check the unit’s power rating (usually in watts) and multiply it by the number of hours the AC is in use. The difference between 3 Star and 5 Star AC lies in their energy efficiency, where a higher Star rating means lower power consumption.

Difference of power consumption between 3 Star ACs vs 5 Star ACs

One of the key differences between the two variants is their electricity consumption after installation. An air conditioner’s electricity consumption depends on its EER rating. 5 Star ACs are more energy-efficient than 3 Star ACs. The electricity consumption of a 5 Star AC (1.5-ton) is approximately 1.5 units per hour, whereas a 3 Star AC (1.5-ton) consumes 1.6 units every hour.

Star Rating

0.75-Ton

1.0-Ton

1.5-Ton

2.0-Ton

3 Star AC

542 Watts

747 Watts

1104 Watts

1448 Watts

5 Star AC

450 Watts

554 Watts

840 Watts

1113 Watts

Difference

92 Watts

193 Watts

264 Watts

335 Watts


The difference is calculated by subtracting the power consumption of 5 Star ACs from that of 3 Star ACs at each tonnage level.

Factors impacting 3 Star and 5 Star AC energy use

Several factors can influence the power consumption of an AC, including the following:

  • Air conditioner type: The energy efficiency of a 5 Star AC is higher than that of a 3 Star AC, meaning a 5 Star AC will consume less power over time.
  • Outside temperature: A higher outside temperature may force your AC to work harder, increasing power consumption.
  • Room size: Larger rooms require more energy to cool, affecting the 5 Star or 3 Star AC performance and consumption.
  • Number of electrical appliances: The more appliances running in the room, the more heat is generated, which can increase the workload on the AC, affecting its power usage.

For a deeper understanding of the energy efficiency and how it impacts your electricity usage, explore the difference between 3 Star and 5 Star AC.

3 Star vs 5 Star AC features - Tech and cooling

Here is a table comparing the features and specifications of 3 Star and 5 Star ACs:

Features

3 Star ACs

5 Star ACs

Capacity

Up to 1.5-Ton

Up to 2-Ton

Cooling Technology

Inverter or Non-Inverter

Inverter

Energy Rating

3 Star

5 Star

Noise Level

Up to 45 dB

Up to 40 dB

Additional Features

Basic (Fan Speed Control, Sleep Mode)

Advanced (Inverter Technology, Wi-Fi Control, Air Purification)


Also read: 1-Ton 3 Star ACs

Top 3 Star ACs in India: Models and updated prices (October2025)

Looking for budget-friendly cooling solutions? Explore the top-selling 3 Star ACs with updated prices. These 5 Star and 3 Star air conditioners offer excellent cooling performance. Compare 3 Star and 5 Star ACs to choose the best option for your home, balancing cost and efficiency.

3 Star ACs

Approximate price

Whirlpool 1 Ton 3 Star Inverter Split AC White (Copper Condenser, 1.0T SUPREMECOL PRO 3S CO 42225) on EMI | Bajaj Mall

Rs. 33,000.00

Haier 1.5 Ton 3 Star Inverter Split AC White (HSU18C-TQG3BE1-INV) on EMI | Bajaj Mall

Rs. 40,800.00

Voltas 1 Ton 3 Star Inverter Split AC White (Copper Condenser, 123V Vectra Elegant) on EMI | Bajaj Mall

Rs. 56,990.00

Lloyd 1 Ton 3 Star Split AC (White, LS12I35WSHD) on EMI | Bajaj Mall

Rs. 40,000.00

Blue Star 1.5 Ton 3 Star Split AC White (Copper Condenser, IA318FNU) on EMI | Bajaj Mall

Rs. 38,900.00

Daikin 1.5 Ton 3 Star Split AC White (FTL50UV) on EMI | Bajaj Mall

Rs. 55,600.00

LG 2 Ton 3 Star Inverter Split AC White (Copper Condensor, RS-Q24ENXE) on EMI|Bajaj Mall

Rs. 85,990.00

Godrej 1.5 Ton 3 Star Inverter Split AC White (Copper Condensor, SIC 18TTC3-WWA) on EMI|Bajaj Mall

Rs. 36,500.00

Havells 1.5 Ton 3 Star Rating Split AC White (Copper Condenser, GLS18I3FWSEV) on EMI | Bajaj Mall

Rs. 38,000.00

Mitsubishi 1.5 Ton 3 Star Inverter Split AC White (Copper Condenser, MSY-JP18VF-DA1) on EMI | Bajaj Mall

Rs. 51,900.00


Top 5 Star ACs in India: Models and updated prices (October2025)

Looking for energy-efficient cooling solutions? Explore the top-selling 5 Star ACs with updated prices. These 5 Star air conditioners offer excellent cooling performance. Compare 3 Star and 5 Star ACs to choose the best option for your home, balancing long-term savings and advanced features.

5 Star ACs

Approximate price

Lloyd 1.5 Ton 5 Star BEE Rating Inverter Split AC White (GLS18I5FWCBP) on EMI | Bajaj Mall

Rs. 44,000.00

Daikin 1.5 Ton 5 Star BEE Rating Inverter Split AC White (Copper Condenser, FTKM50UV16U) on EMI | Bajaj Mall

Rs. 67,200.00

Cenit 1.5 Ton 5 Star AI Split AC, Copper, Super Convertible 6-in-1 Cooling (CG15TFS, White) on EMI | Bajaj Mall

Rs. 45,999.00

Lloyd 1.5 Ton 5 Star Rating Inverter Split AC White (Copper Condenser, GLS18I5FWRBV) on EMI | Bajaj Mall

Rs. 45,000.00

Voltas 1 Ton 5 Star Inverter Split AC White (Copper Condenser, SAC125VVECTRAPEARLMARVEL 4553405) on EMI | Bajaj Mall

Rs. 63,990.00

Voltas 1.5 Tons 5 Star Inverter Window AC White (Copper Condenser, 185VADA15TW) on EMI | Bajaj Mall

Rs. 40,990.00

Blue Star 2 Ton 5 Star Inverter Split AC White (Copper Condenser, IC524DNU) on EMI | Bajaj Mall

Rs. 57,490.00

Panasonic 1.5 Ton 5 Star Inverter Split AC White (Copper Condenser, CS/CU-AU18ZKY5F) on EMI | Bajaj Mall

Rs. 50,990

Samsung 1.5 Ton 5 Star Inverter Split White (Copper Condenser, AR18BY5ZAPGNNA) on EMI | Bajaj Mall

Rs. 65,990.00


Disclaimer: Each model's features, availability, and pricing are subject to change and may vary. For the most accurate and up-to-date information, please visit the official website.

Please note: You can use Bajaj Finserv’s financing options to split any purchase above Rs. 5,000 into Easy EMIs.

Thinking of buying a new AC?

Before you do that, explore the latest offers from Bajaj Finserv. You may find a great deal on a model that matches your needs.

Maintenance tips for 3 Star and 5 Star ACs to save energy

Regular upkeep improves efficiency and reduces electricity bills. Follow these simple steps to maintain performance and cut power use by 10–15%.

  • Clean filters monthly: Dust buildup restricts airflow and increases energy use.
  • Set temperature to 24 degree Celsius: This balanced setting ensures comfort and optimal power consumption.
  • Schedule annual servicing: Professional cleaning and gas checks improve cooling and reduce strain.
  • Check outdoor unit: Keep it free from debris and ensure proper ventilation.
  • Seal room gaps: Prevent cool air from escaping to reduce load on the AC
  • Avoid overcooling: Use timers or sleep mode to manage usage efficiently.
  • Monitor energy use: Use smart features or external meters to track consumption.

Get electronics and appliances on Easy EMIs with Bajaj Finserv

Upgrading your home with the latest electronics and appliances is now easier and more affordable with Bajaj Finserv’s flexible financing options. You can also maximise your savings by using the Maha Bachat Savings Calculator—a smart tool that combines brand offers, dealer offers, and EMI offers, all in one place, helping you lower the overall cost while still paying in small, bite-sized instalments. Follow these steps to get started:

  • Explore products on Bajaj Mall: Browse a wide range of electronics and appliances from trusted brands on Bajaj Mall. Compare features like energy ratings, storage capacity, performance settings, and design to choose the right product for your home.
  • Visit a partner store: Once you shortlist a model, step into any of Bajaj Finserv’s 1.5 lakh partner stores across 4,000 cities in India. See the product in person, talk to experts, and make a confident decision.
  • Choose the Easy EMI Loan option: At checkout, select the Bajaj Finserv Easy EMI Loan. Avail financing of up to Rs. 5 lakh and split the cost into convenient monthly instalments. Some products also come with a zero down payment option.
  • Check your loan eligibility online: Plan better by checking your loan eligibility in minutes. Simply enter your mobile number and OTP to know your pre-approved limit.
  • Use the EMI Network Card for purchases up to Rs. 3 lakh: Already own the Bajaj Finserv EMI Network Card? Use it for instant, paperless checkout and convert your purchases of up to Rs. 3 lakh into Easy EMIs.

ACs by brands:

Voltas AC

LG AC

Mitsubishi AC

Hitachi AC

Daikin AC

Samsung AC

Carrier AC

Lloyd AC

Godrej AC

Panasonic AC

IFB AC

Whirlpool AC

Blue Star AC

Haier AC

Onida AC

 


ACs by capacity:

1.5-Ton Air Conditioners

1-Ton Air Conditioners

2-Ton Air Conditioners

2-Ton Split Air Conditioners

3-Ton Air Conditioners

 

 

 


ACs by type:

Window AC

Split AC

Inverter AC


ACs by budget:

ACs Under Rs. 20,000

ACs Under Rs. 25,000

ACs Under Rs. 30,000

ACs Under Rs. 40,000

Pro tip

Celebrate Diwali the smarter way – bring home appliances and gadgets at up to 60% off

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Frequently asked questions

Can I buy an AC on EMIs?

Yes, you can purchase an AC with Bajaj Finserv’s Easy EMI options.

If you are an existing user of the Bajaj Finserv Insta EMI Card:

  • Explore a wide range of air conditioners on Bajaj Mall
  • Choose the preferred model and visit a Bajaj Finserv partner store to check it out in person
  • Use your EMI Network Card and avail of Easy EMIs for affordable monthly payments
  • Enjoy your new AC on Easy EMIs

If you do not have a Bajaj Finserv Insta EMI Card, there is no need to worry. Check your Insta EMI Card eligibility and take the first step towards enjoying the affordability and convenience of Easy EMIs.

Please note: Easy EMIs are applicable on purchases above Rs. 5,000.

Is a 5 Star AC truly energy-saving?

Yes, a 5 Star AC saves electricity due to its higher energy efficiency ratio (EER). This leads to lower power consumption and re-duced electricity bills over time, making it a cost-effective choice despite a higher initial investment.

Can a 5 Star AC work in extreme tem-peratures?

Yes, a 5 Star AC can function in extreme temperatures; however, its efficiency may vary. While it is designed for optimal per-formance, excessive heat or cold can strain the system, potentially leading to reduced cooling capacity and increased wear on the unit, affecting its longevity.

How often should I service a 3 Star or 5 Star AC?

Both 3 Star and 5 Star ACs should ideally be serviced at least once a year. Regular maintenance ensures optimal perfor-mance, improves energy efficiency, and extends the unit's lifespan. Additionally, more frequent servicing may be necessary if the AC is used heavily or in dusty envi-ronments.

What are some tips to further reduce AC electricity costs?

Set the temperature to 24 degree Celsius, clean filters monthly, and use sleep mode or timers. Seal windows and doors to prevent air leaks. Schedule annual servicing and avoid frequent switching on and off. These steps help reduce electricity costs while maintaining cooling efficiency in Indian weather conditions.

What is the energy savings difference between 3 Star and 5 Star ACs?

A 5 Star AC consumes less electricity than a 3 Star AC due to a higher ISEER rating. Over time, this difference can lead to 10–20% savings on energy bills. For frequent use, a 5 Star AC offers better long-term value despite a higher initial cost.

Which is better for small rooms: 3 Star or 5 Star AC?

For small rooms with limited usage, a 3 Star AC is sufficient and budget-friendly. If the room is used daily or for long hours, a 5 Star AC is better due to lower energy consumption and faster cooling. Choose based on usage patterns and electricity cost priorities.

How does inverter tech impact 3 Star vs 5 Star AC performance?

Inverter technology allows both 3 Star and 5 Star ACs to adjust compressor speed based on room temperature. In 5 Star models, this results in better efficiency and quieter operation. In 3 Star models, it still improves performance but with slightly higher energy consumption over time.

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