Dreo Smart Air Conditioner 516S review

The 516S is Dreo's non-inverter smart portable. Dreo lists 14,000 BTU on the ASHRAE scale and a floor area of 400 square feet, with airflow that reaches up to 14 ft. The product page does not give a DOE or SACC rating, so it is harder to compare with the Midea Duo or Whynter models, which publish both. Dreo rates the noise at 46 dB. Like the 740S, it is drainage-free in most conditions, here when humidity is under 85%. Control works through the Dreo app, Amazon Alexa or Google Home, and it has cooling, dehumidifying and fan modes with a 24-hour timer. The universal window kit fits windows from 17 to 53 inches, and the box includes the kit, hose and remote. It uses R-32 refrigerant and measures 14.37 by 17.32 by 28.13 inches. At $599.99 on Dreo's store it sits $100 below the 740S, which adds an inverter, a dual hose and a lower 42 dBA floor.

Who it is for

rooms up to 400 sq ft on a mid-range budget

Price

$599.99 on Dreo's US store.

smart air conditioner 516s (new) sale price $599.99 usd
Quoted from the vendor pricing page on November 14, 2026.

Key features

• 14,000 BTU ASHRAE cooling for up to 400 sq ft
• 46 dB noise level
• Drainage-free when humidity is under 85%
• Dreo app, Amazon Alexa and Google Home control
• Universal window kit for windows from 17 to 53 inches

Strengths and weaknesses

• Strength: Window kit fits windows from 17 to 53 inches
• Strength: Cool, dehumidify and fan modes plus a 24-hour timer
• Strength: Available in white or black
• Weakness: Dreo lists only the ASHRAE rating, not a DOE or SACC figure
• Weakness: 46 dB is louder than the 42 dBA Dreo 740S
• Weakness: Costs $90 more than the Whynter ARC-14S

Key facts

• Cooling (ASHRAE): 14,000 BTU
• Room size: 400 sq ft
• Noise: 46 dB
• Refrigerant: R-32
• Dimensions: 14.37 x 17.32 x 28.13 in

Where it ranks

Dreo Smart Air Conditioner 516S is No. 5 in our Best Portable Air Conditioners verdict.