When it comes to buying an air conditioner for your home, especially a 1.5 Ton 5 Star AC for medium sized rooms, the two most popular brands in India are Carrier and Blue Star. But with both being leaders in split AC and inverter technology, how do you choose between a Carrier AC and a Blue Star AC?
I have comprehensively tested the latest models – Carrier 1.5 Ton 5 Star AI Flexicool Inverter Split AC (2024) and the Blue Star 1.5 Ton 5 Star Inverter Split AC across crucial factors like price, specifications, energy efficiency, features, fast cooling and more.
In this comprehensive Carrier vs Blue Star AC comparison, I share key similarities and differences between both ACs to help you decide.
Here is a comparison table of the key features of the Carrier Vs Blue Star AC 1.5 Ton 5 Star 2024 model
Similarities between Carrier and Blue Star AC
Inverter Compressor
Both Carrier and Blue Star ACs utilize inverter compressors that can vary the speed to adjust the power based on the heat load in the room. This results in faster cooling, better temperature control.
Capacity
The capacity of both these 1.5 Ton ACs is suitable for cooling small to medium rooms of 111-150 sq ft in size. The tonnage of 1.5 is ideal for areas that require quick cooling.
Copper Condenser Coil
I have found that both models use 100% copper condenser coils rather than aluminum. Copper coils provide superior cooling, require lower maintenance and are more durable against corrosion.
Ambient Temperature
The ambient temperature range in which these 5 star ACs can operate optimally is quite similar. Carrier AC works till 52°C while Blue Star works till 54°C.
Remote Control Functionality
The remote controls on both Carrier and Blue Star ACs allow you to easily control temperature, cooling modes, fan speeds, on/off timers and other features.
Air Filtration
Good thing I have seen is that both ACs come with advanced air filters like PM2.5 filter to remove microscopic particles, dust, pollen, pet hair etc. This improves indoor air quality.
Self-Diagnosis
Both brands offer self-diagnostic capability in their ACs to detect issues and faults for easy troubleshooting and repairs.
Key Differences between Carrier and Blue Star
Now let’s look at some of the main differences between these two ACs:
01. Energy Efficiency Comparison
During testing I have found, The Carrier AC boasts a high ISEER (Indian Seasonal Energy Efficiency Ratio) value of 5.13 while the Blue Star model has a slightly lower ISEER of 5.02. The ISEER indicates the cooling provided per unit of electricity consumed – higher the value, the more energy efficient the AC is.
Carrier AC has an annual electricity consumption of only 754.05 units compared to 770.98 units of the Blue Star AC as per brand data.
| AC Model | ISEER | BEE Rating | Annual Electricity Consumption |
| Carrier 1.5 Ton 5 Star | 5.13 | 5 star | 754.05 units |
| Blue Star 1.5 Ton 5 Star | 5.02 | 5 star | 770.98 units |
The higher ISEER value combined with lower annual power consumption makes the Carrier AC the clear winner when it comes to energy efficiency. Over years of usage, the savings of over 15 units annually will make a noticeable difference in electricity bills.
02. Stabilizer-Free Operation Comparison
Good thing I have seen, The Carrier 1.5 Ton 5 Star AC can operate smoothly within a 135V to 280V range without needing a separate stabilizer appliance.
The Blue Star 1.5 Ton 5 Star AC has a more limited stabilizer-free operation range of up to 230V. While decent, it is outmatched by the Carrier AC’s superior voltage handling capability.
| AC Model | Stabilizer-Free Operation Range |
| Carrier 1.5 Ton 5 Star | 135V – 280V |
| Blue Star 1.5 Ton 5 Star | Up to 230V |
Having a wider voltage tolerance allows the Carrier AC to operate safely during higher voltage fluctuations compared to the Blue Star AC. This can help prevent unexpected shutdowns or damage during unstable power supply.
03. Cooling Comparison
Another interesting thing I have found, Both the Carrier and Blue Star 1.5 ton ACs are evenly matched when it comes to cooling performance making it tough to pick an absolute winner.
The Carrier AC offers maximum cooling capacity of 5760 Watts with normal rating of 5000 Watts. It provides high airflow of 580 CFM, it suitable for quickly cooling small to medium rooms.
The Blue Star AC has marginally lower cooling capacity of 5050 Watts but offers higher air delivery of 637 CFM on max fan speed.
| AC Model | Cooling Capacity | Air Flow Rate |
| Carrier 1.5 Ton | 5760 Watts max, 5000 Watts rated | 580 CFM |
| Blue Star 1.5 Ton | 5050 Watts | 637 CFM max |
With 1.5 ton capacity, both air conditioners are ideal for use in rooms of size 111-150 sq ft. Given their similar tonnage and high cooling capacity over 5000 Watts, both the Carrier and Blue Star ACs are competent in providing effective and quick cooling for medium rooms.
There is no clear winner when it comes to the cooling ability of these two AC models.
04. Noise Comparison
The Carrier 1.5 Ton 5 Star AC operates at a low noise level of 38 dB on the lowest fan setting. This goes up to 44 dB on the highest setting.
Comparatively, the Blue Star AC produces slightly more noise of 34 dB on low fan speed but is louder at 49 dB on turbo mode.
| AC Model | Noise Level (Low Fan Speed) | Noise Level (High Fan Speed) |
| Carrier 1.5 Ton | 38 dB | 44 dB |
| Blue Star 1.5 Ton | 34 dB | 49 dB |
This data shows that at lower fan speeds, the Carrier AC is quieter. However, the Blue Star AC produces less ambient noise during higher fan speeds.
The Carrier AC is the winner for its ability to run more silently. But the Blue Star AC takes the lead if you need to use higher fan speeds more often.
05. Smart Features Comparison
Carrier offers innovative 6-in-1 convertible cooling technology; you can customize the AC’s cooling capacity from 100% to 50% as needed. This actually helpful, it can reduce electricity consumption by up to 50% compared to fixed speed ACs.
Good thing I have found, it has auto-cleaning feature, It automatically cleans and disinfects the indoor unit. Useful smart sensors monitor refrigerant levels and room conditions to automatically self-diagnose issues. The wide 135V-280V voltage stabilization also improves performance.
Blue Star cannot match the versatility of 6-in-1 cooling flexibility. But its 5-in-1 modes still allow some customization of cooling as needed. The pre-set high mode helps rapidly cool rooms during peak summers.
The built-in AI algorithm monitors outside and inside temperatures and optimizes cooling accordingly. It also has auto-cleaning and advanced sensor features as seen on Carrier.
Here is a comparison table highlighting the key smart features of both AC models:
| Features | Carrier | Blue Star |
| Cooling Modes | 6-in-1 flexible modes | 5-in-1 pre-set modes |
| Auto-Cleaning | Yes | No |
| Sensors | Leakage, temp. diagnostics | Leakage, temp. diagnostics |
| AI Cooling | No | Yes, built-in algorithm |
| Voltage Stabilization | 135V-280V | Up to 230V |
No one is winner here, both have similar kind of smart features.
06. Maintenance Comparison
Carrier ACs are designed for easy maintenance with conveniently located air filters that can be cleaned in a few minutes. The Auto Cleanse feature also reduces the need for manual cleaning of the evaporator.
Blue Star models have slightly more maintenance needs as their filter placement makes accessing and cleaning trickier. The exterior casing design also leads to some dust accumulation.
Here’s a table summarizing the key differences in maintenance needs:
| Parameter | Carrier | Blue Star |
| Filter Access | Easily removable panel | Obstructed access |
| Auto-Clean | Yes | Yes |
| Dust Accumulation | Low due to tight casing | Low due to tight casing |
| Service Network | Limited reach outside metros | Widespread across India |
Which is Better for 150 sq. ft Room Size?
Carrier’s 1.5 ton capacity is designed specifically for room sizes between 111-150 sq. ft. It has the optimal cooling power to quickly lower temperatures and maintain comfort in these rooms.
Some key advantages of Carrier for 150 sq. ft. room:
- Higher 5000 Watts cooling capacity
- Quick cooling from 40°C to 22°C under 15 minutes
- Superior 6-in-1 inverter flexibility to customize cooling
- Very quiet operation down to 38 dB on low fan speed
Blue Star is also suitable for 150 sq. ft. rooms with its 1.5 ton capacity. But it falls slightly short of Carrier when it comes to cooling performance for these spaces.
| Parameter | Carrier | Blue Star |
| Tonnage | 1.5 ton | 1.5 ton |
| Cooling Capacity | 5000 Watts | 5050 Watts |
| Noise Level (dB) | 38-44 | 34-49 |
No one is winner here, Both the model is good for quickly and silently cooling a 150 sq. ft. room to comfortable temperatures.
Carrier Or Blue Star 1.5 Ton AC – Which is better?
Now for the important question – Carrier or Blue Star, which brand is better for your home?
Here are some key points to consider about both:
Reasons to Buy Carrier AC:
- Greater energy efficiency
- Wider stabilizer-free operation
- Quieter performance
- Smart AC capabilities
- Better ambient temperature tolerance.
Reasons to Buy Blue Star AC:
- Sleep mode
- LED display remote
- 5-in-1 cooling modes
- Low noise
- High air flow
Read more comparisons:
Blue Star Vs Daikin AC 1.5 Ton 5 Star
Blue Star Vs Voltas Split AC 1.5 Ton 5 Star
LG Vs Blue Star AC 1.5 Ton 5 Star
Verdict – Depend on user preferences
The Carrier AC shines when it comes to energy efficiency, smart features, stabilizer-free operation and low noise. So it is ideal if these aspects are important for you.
The Blue Star AC excels in providing ultrasilent sleep mode, LED display remote and more cooling modes. So it appeals more if you value these extra functions.
Both are equal when it comes to cooling capacity, maintenance and 1.5 ton capacity for medium rooms.
Ultimately, the right choice depends on your priorities and which AC better aligns with your needs.
If fast cooling and maximum energy savings are vital – the Carrier AC is the winner.
If you want extra features and absolutely silent sleep mode – the Blue Star AC better fits your needs.
Either model will serve as an excellent 1.5 ton 5 star AC for residential usage.
