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DELLA 5000 BTU Smart Window Air Conditioner, Works vs Kenmore KM8K-R 8,000 BTU Window Air Conditioner

Updated July 2026 — DELLA 5000 BTU Smart Window Air Conditioner, Works wins on fan speeds and ceer, Kenmore KM8K-R 8,000 BTU Window Air Conditioner wins on cooling area and weight.

The Kenmore KM8K-R offers superior cooling capacity for medium rooms, while the Della excels in energy efficiency and smart features. Choose based on your specific needs.

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

Energy Efficiency

Della has a higher CEER of 11.0.

Smart Features

Della integrates with Alexa and WiFi.

Weight

Della is lighter at 36.4 lbs.

Why Kenmore KM8K-R 8,000 BTU Window Air Conditioner is better

Cooling Capacity

Kenmore cools up to 350 sq. ft.

Modes

Kenmore offers multiple cooling modes.

Installation

Kenmore has a simpler installation process.

Overall score

DELLA 5000 BTU Smart Window Air Conditioner, Works
78
Kenmore KM8K-R 8,000 BTU Window Air Conditioner
85

Specifications

SpecDELLA 5000 BTU Smart Window Air Conditioner, WorksKenmore KM8K-R 8,000 BTU Window Air Conditioner
Price$229.96$248.99
Sales Rank232069228397
Remote ControlYesYes
Digital DisplayNoYes
Warranty1 year1 year

Dimension comparison

DELLA 5000 BTU Smart Window Air Conditioner, WorksKenmore KM8K-R 8,000 BTU Window Air Conditioner

Overview of the Della 5000 BTU Smart Window Air Conditioner

The Della 5000 BTU Smart Window Air Conditioner is designed for small rooms, cooling areas up to 150 square feet. Priced at $229.96, it incorporates smart technology, allowing users to control the unit via Alexa and WiFi. With a sales rank of 232,069, this model emphasizes energy efficiency with a Combined Energy Efficiency Ratio (CEER) of 11.0, resulting in 29% more energy savings compared to traditional units. This makes it an attractive option for those seeking modern conveniences along with cost-effective cooling.

Overview of the Kenmore KM8K-R 8,000 BTU Window Air Conditioner

The Kenmore KM8K-R delivers powerful cooling for medium-sized rooms, accommodating spaces up to 350 square feet. It is priced at $248.99, making it about 8% more expensive than the Della model. With a sales rank of 228,397, this unit boasts an impressive CEER of 10.9, ensuring efficient cooling while minimizing energy consumption. The multi-mode operation includes Sleep, Auto, Eco, and Cooling modes, providing versatile comfort tailored to different needs, especially in larger areas.

Cooling Performance

When it comes to cooling performance, the Kenmore KM8K-R outshines the Della model. With an 8,000 BTU capacity, it effectively cools spaces up to 350 square feet, making it suitable for medium rooms such as bedrooms and home offices. In contrast, the Della’s 5,000 BTU capacity limits its cooling range to 150 square feet, making it ideal for small rooms. The Kenmore’s ability to handle larger areas makes it a better choice for those who require stronger cooling capabilities.

Energy Efficiency

Both units prioritize energy efficiency, but the Della 5000 BTU Smart Window Air Conditioner leads in energy savings with its CEER of 11.0. This translates to 29% more energy savings compared to traditional models, potentially lowering utility costs year-round. The Kenmore KM8K-R, while still efficient with a CEER of 10.9, offers slightly less energy savings. The Della’s lower operating costs may appeal to budget-conscious consumers, especially if the air conditioner will be used frequently.

Smart Features

The Della model integrates smart technology, allowing for voice control through Alexa and remote control via a user-friendly app. This feature enhances convenience and flexibility, especially for those who enjoy modern smart home setups. On the other hand, the Kenmore KM8K-R offers a sleek digital touch panel and an included remote control, but it lacks the smart connectivity features found in the Della. For tech-savvy users, the Della’s smart capabilities present a significant advantage.

Installation Process

Both units are designed for easy installation, but the Della model may have a slight edge. Della’s compact size and lightweight design, weighing only 36.4 lbs, make it straightforward to install in windows that are 23"-34" wide. It also comes with pre-assembled side panels for a hassle-free setup. The Kenmore KM8K-R, while also easy to install, weighs 44.8 lbs and may require more effort for single-person installation. Thus, the Della model might be more appealing for those prioritizing convenience.

Noise Levels

Noise levels are a critical factor for many consumers when selecting an air conditioner. The Della 5000 BTU operates at sound levels as low as 51 dB, ensuring quiet cooling without disturbing your environment. In comparison, while the Kenmore KM8K-R is designed for quiet operation, specific noise level details aren’t provided. However, the emphasis on quiet performance suggests it is suitable for nighttime use. Nevertheless, the Della's explicitly lower dB rating is a significant selling point for those sensitive to noise.

Which should you buy?

Choosing between the Della 5000 BTU Smart Window Air Conditioner and the Kenmore KM8K-R ultimately depends on your cooling needs and preferences. If you require a unit for a small room and value smart technology and energy efficiency, the Della offers a compelling package at $229.96. However, if you need stronger cooling capabilities for medium spaces and don’t mind spending slightly more at $248.99, the Kenmore KM8K-R is a robust option. Each model excels in different areas, so your choice will hinge on your specific requirements for room size, features, and budget.