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LG Vs Blue Star AC 1.5 Ton 5 Star: Which is better?

Debolina Roy

January 13, 2025

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In the battle of 1.5-ton 5-star air conditioners, a mere 150 watts of annual power consumption separates industry giants LG and Blue Star, yet this small difference translates to significant long-term savings. While LG leads with an impressive ISEER rating of 5.20 and whisper-quiet 31 dB operation, Blue Star counters with superior cooling capacity of 5050W and precision temperature control. This head-to-head comparison reveals how subtle technical distinctions can dramatically impact home cooling efficiency and comfort.

Comparison between LG and Blue Star AC 1.5 Ton 5 Star

In case you are in a hurry, here is a quick comparison table of LG RS-Q19YNZE 1.5 Ton Split AC vs Blue Star IC518YNU 1.5 Ton Split AC

Cooling Comparison:

LG and Blue Star offer distinct cooling capabilities in their 1.5-ton 5-star AC models. LG’s dual inverter model delivers 4600W cooling capacity, while Blue Star provides a higher 5050W output. The difference becomes apparent in their operational efficiency.

LG excels in power efficiency, consuming only 744.98W compared to Blue Star’s 770.98W. The ISEER ratings show LG’s slight edge at 5.2 versus Blue Star’s 5.044. LG’s dual inverter technology enables smoother operation with noise levels as low as 31 dB.

Blue Star compensates with superior cooling coverage. It effectively cools spaces up to 180 square feet, incorporating precision cooling technology with decimal settings. The unit features turbo cooling mode for rapid temperature reduction.

Both manufacturers use eco-friendly R-32 refrigerant and copper condensers for durability. LG’s Viraat mode provides 110% cooling capacity during peak summers. Blue Star’s hydrophilic blue fins enhance heat exchange efficiency. The choice ultimately depends on whether you prioritize energy efficiency or raw cooling power.

Energy Efficiency Comparison:

LG demonstrates superior energy efficiency with its 1.5-ton 5-star models. The latest LG models achieve an impressive ISEER rating of 5.20, consuming approximately 685.26 units annually. Blue Star’s comparable models operate at a slightly lower ISEER of 5.02, using about 836.04 units per year.

Here’s how the key efficiency metrics compare:

LG’s dual inverter technology enables more precise temperature control and energy optimization1. The company’s AI Convertible 6-in-1 cooling technology further enhances efficiency by adjusting cooling capacity based on room conditions. Blue Star counters with its 5-in-1 convertible cooling system, though it consumes slightly more power.

Both manufacturers use copper condensers for better heat exchange efficiency. However, LG’s advanced compressor technology gives it an edge in power consumption. The difference in annual energy consumption amounts to approximately 150 units, making LG the more economical choice for long-term operation.

Design and Aesthetics

The LG and Blue Star 1.5-ton ACs showcase distinct design philosophies. LG’s model features sleek dimensions of 99.8 x 21.0 x 34.5 cm, weighing just 11 kg for the indoor unit. Blue Star’s unit measures slightly differently at 97.5 x 32.0 x 22.9 cm with a 12 kg indoor unit weight.

The display technology differs significantly between the two brands:

LG incorporates a sophisticated hidden LED display that remains invisible when not in use. Blue Star opts for a more traditional approach with a standard LED display. The LG unit’s premium appearance is enhanced by its Ocean Black Protection and Gold Fin+ coating. Blue Star counters with its signature Blue Fin protection technology and anti-corrosive coating.

Both manufacturers use high-quality materials in their construction, featuring copper condensers and 4-way swing louvers.

Noise Level:

Noise levels significantly differ between LG and Blue Star’s 1.5-ton 5-star air conditioners. LG consistently maintains lower noise levels across its models3. The LG models operate at approximately 31 dB for indoor units, making them exceptionally quiet.

Blue Star’s indoor noise levels vary depending on the specific model and operating mode:

• The IC518RNU model produces 52 dB at indoor unit
• The IC518DNUR operates between 31-50 dB depending on fan speed
• The IC518NNURS ranges from 34-45 dB

Here’s a comparative analysis of noise levels:

The difference in noise levels can be attributed to LG’s advanced BLDC Motor and Dual Inverter Compressor technology. Blue Star compensates for slightly higher noise levels by incorporating an acoustic jacket on the compressor. Both manufacturers maintain noise levels within acceptable limits for residential use, though LG holds a clear advantage in creating a quieter indoor environment.

For noise-sensitive areas like bedrooms or study rooms, LG’s lower operational noise makes it a more suitable choice.

Smart Features and Technology

LG and Blue Star offer distinct technological advantages in their 1.5-ton 5-star air conditioners. LG leads with its AI Dual Inverter technology, providing 6-in-1 convertible cooling modes compared to Blue Star’s 5-in-1 system. The energy efficiency metrics show LG’s superior ISEER rating of 5.20 versus Blue Star’s 5.0.

Both manufacturers incorporate smart connectivity, but with different approaches. LG includes built-in Wi-Fi support and voice control capabilities at no extra cost. Blue Star offers these features as “Smart Ready,” requiring an additional payment of ₹1,699 for full smart functionality.

The cooling capacity remains competitive, with LG offering 5,000W and Blue Star providing 5,010W. LG’s AI+ technology uses deep learning algorithms for temperature optimization, while Blue Star employs DigiQ Penta Sensors for precise cooling control.

After-Sales Service and Support

LG and Blue Star offer distinct after-sales service experiences for their 1.5-ton 5-star air conditioners. LG provides comprehensive customer support through multiple channels, including a 24/7 toll-free number (1800 315 9999) and dedicated service centers. Their response time is typically faster, with service requests usually addressed within 24-48 hours.

Blue Star’s customer support operates through fewer channels, with their primary helpline (89 7678 1177) available during limited hours11. While Blue Star maintains a network of 1,060 service providers and 8,000 technicians across India, customer feedback indicates longer response times and occasional communication gaps.

LG’s service network primarily consists of company-trained technicians, ensuring consistent service quality. Their technicians are specifically trained to handle complex PCB repairs and technical issues. Blue Star, however, relies more heavily on authorized service dealers, which can sometimes lead to varying service quality across different regions.

Both companies offer standard one-year warranties on their products, but LG’s customer satisfaction ratings for after-sales service consistently rank higher.

Price and Value for Money

The price comparison between LG and Blue Star 1.5 ton 5-star ACs reveals interesting insights into their value propositions. LG’s models typically range from ₹42,490 to ₹46,990, while Blue Star’s offerings are priced between ₹43,290 and ₹49,280.

LG offers better value through lower power consumption and quieter operation. The annual energy consumption difference is significant, with LG consuming approximately 770 units compared to Blue Star’s 836 units. This translates to long-term savings on electricity bills.

However, Blue Star compensates with robust build quality and superior cooling capacity. Their model delivers 5180W cooling power compared to LG’s 5100W. Blue Star also includes additional features like precision cooling technology and anti-corrosive protection.

When considering after-sales service, both manufacturers provide identical warranty terms: 1 year on product and 10 years on compressor. The choice ultimately depends on whether you prioritize energy efficiency and quieter operation (LG) or powerful cooling performance (Blue Star).

Final Verdict: Which One Should You Choose?

Both LG and Blue Star offer compelling options in the 1.5-ton 5-star AC segment. Let’s examine the key differentiators to help make an informed decision.

LG holds a slight edge in energy efficiency with an ISEER rating of 5.2 compared to Blue Star’s 5.02. The annual power consumption reflects this difference – LG uses 685.26 watts while Blue Star consumes 774.88 watts.

Here’s how they compare on critical parameters:

LG excels in noise reduction, operating at just 31 dB compared to Blue Star’s higher noise levels1. However, Blue Star offers superior cooling capacity at 5180 watts versus LG’s 5100 watts6.

LG’s dual inverter technology and advanced features like refrigerant leakage detection make it ideal for tech-savvy users. Blue Star, with its robust build quality and competitive pricing, appeals to those seeking reliability and value.

Choose LG if you prioritize quiet operation and smart features. Opt for Blue Star if you want slightly better cooling performance and traditional reliability. Both brands offer similar warranty terms and build quality.