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12,000 BTU U-Shaped Window Air Conditioner, Window vs DELLA 5000 BTU Smart Window Air Conditioner, Works

Updated July 2026 — 12,000 BTU U-Shaped Window Air Conditioner, Window wins on cooling area and noise level, DELLA 5000 BTU Smart Window Air Conditioner, Works wins on price and energy efficiency.

The Antarctic Star offers superior cooling capacity and quieter operation, while the Della excels in energy efficiency and smart features.

Why 12,000 BTU U-Shaped Window Air Conditioner, Window is better

Cooling Capacity

Cools up to 550 sq. ft.

Noise Level

Operates at 45 dB

Versatility

3-in-1 climate control

Why DELLA 5000 BTU Smart Window Air Conditioner, Works is better

Price

51% cheaper

Smart Features

Works with Alexa and WiFi

Energy Efficiency

CEER of 11.0

Overall score

12,000 BTU U-Shaped Window Air Conditioner, Window
85
DELLA 5000 BTU Smart Window Air Conditioner, Works
75

Specifications

Spec12,000 BTU U-Shaped Window Air Conditioner, WindowDELLA 5000 BTU Smart Window Air Conditioner, Works
Cooling BTU12,0005,000
Max Area550 sq. ft.150 sq. ft.
Noise Level45 dB51 dB
Smart FeaturesNoYes
Price$466.99$229.96

Dimension comparison

12,000 BTU U-Shaped Window Air Conditioner, WindowDELLA 5000 BTU Smart Window Air Conditioner, Works

Overview of the Products

In this comparison, we explore two window air conditioners: the 12,000 BTU U-Shaped Window Air Conditioner from Antarctic Star and the Della 5000 BTU Smart Window Air Conditioner. The former is designed for larger spaces, cooling up to 550 square feet, while the latter is tailored for smaller rooms, with a cooling capacity of up to 150 square feet. The price difference is significant, with the Antarctic Star unit retailing at $466.99 and the Della model priced at $229.96, making the Della about 51% cheaper.

Cooling Capacity

The Antarctic Star's 12,000 BTU U-Shaped Window Air Conditioner is capable of cooling larger spaces effectively, covering up to 550 square feet. This makes it ideal for living rooms, large bedrooms, or open-concept areas. In contrast, the Della 5000 BTU unit is suitable for smaller rooms, with a maximum cooling capacity of 150 square feet. If you have a large area that needs cooling, the Antarctic Star is clearly the better choice, whereas the Della is more appropriate for compact spaces.

Energy Efficiency

When it comes to energy efficiency, the Della unit stands out with a Combined Energy Efficiency Ratio (CEER) of 11.0, promising 29% more energy savings compared to traditional models. This efficiency reduces energy costs throughout the year, making it a more sustainable option for small spaces. While the Antarctic Star does not specify its CEER, it highlights its eco-friendly performance, which is designed to lower utility bills. However, without explicit numbers, the Della appears to have the edge in energy savings.

Noise Levels

Noise levels are crucial for comfort, especially in bedrooms or workspaces. The Antarctic Star operates at a whisper-quiet 45 dB, making it suitable for environments where silence is a priority, such as nurseries or home offices. On the other hand, the Della operates at sound levels as low as 51 dB. While both units are designed to minimize noise, the Antarctic Star offers a slightly quieter experience, which could be a decisive factor for those sensitive to sound.

Smart Features

The Della 5000 BTU Smart Window Air Conditioner includes modern smart technology, allowing it to work with Alexa and WiFi. This feature enables users to control the unit conveniently through voice commands or a mobile app. The Antarctic Star, while advanced in its cooling capabilities, does not mention smart technology. For tech-savvy consumers seeking convenience, the Della's smart features add significant value, enhancing user experience and comfort.

Installation Process

Installation can often be a hassle with air conditioning units, but both products offer easy setups. The Antarctic Star comes with a comprehensive installation kit and is compatible with standard window frames, ensuring a secure fit. The Della also boasts a user-friendly installation process, with pre-assembled side panels and a compact design for easy sliding into the window. Both units simplify installation, but the Antarctic Star’s detailed support bracket may offer extra reassurance.

Operating Modes and Features

The Antarctic Star provides versatile 3-in-1 climate control, functioning as an air conditioner, dehumidifier, and fan with multiple speed settings and modes. It features a dedicated Sleep Mode and a 24-hour timer for customizable comfort. The Della likewise offers four operating modes—Auto, Cool, Fan, and Dry—and includes a 24-hour timer and sleep mode. While both units are packed with useful features, the Antarctic Star's additional functionalities may cater more effectively to diverse cooling needs.

Maintenance and Cleaning

Maintenance is essential for the longevity and efficiency of air conditioning units. The Antarctic Star includes a washable filter, which can be easily removed and cleaned, ensuring optimal performance. The Della also features a washable and reusable air filter for quick cleaning. Both products emphasize ease of maintenance, but the Antarctic Star’s design may allow for slightly more efficient cleaning due to its focus on user-friendly features.

Which should you buy?

Choosing between the Antarctic Star 12,000 BTU U-Shaped Window Air Conditioner and the Della 5000 BTU Smart Window Air Conditioner ultimately depends on your specific needs. If you're looking for powerful cooling over a larger area, the Antarctic Star is the clear choice, with its capacity to cool up to 550 square feet effectively. However, if you prioritize smart features, energy efficiency, and a budget-friendly option for small spaces, the Della emerges as a compelling alternative. With a price difference of about $237.03, the decision hinges on whether you need the higher capacity and quieter operation of the Antarctic Star or the smart capabilities and affordability of the Della.