Dyson V15 Detect Cordless Vacuum Cleaner (368340-01) vs Symphony Diet 12T 12-Litre Personal Tower Air Cooler

What separates them

These two differ on 9 recorded specifications. The Dyson V15 Detect Cordless Vacuum Cleaner (368340-01) is ₹59,610 dearer.

Dyson

Dyson V15 Detect Cordless Vacuum Cleaner (368340-01)

₹65,900

The 60 minute runtime on the box is eco mode with a non-motorised tool attached -- with the powered head on carpet you get 20 to 30 minutes, and about 8 on boost.

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Symphony

Symphony Diet 12T 12-Litre Personal Tower Air Cooler

₹6,290

Evaporative cooling costs about a tenth of what an air conditioner costs to run, and the reason is that it does not remove heat -- it converts sensible heat into humidity.

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Who the Dyson V15 Detect Cordless Vacuum Cleaner is for

Buy it if: Flats and smaller homes where 20 to 30 minutes of cordless cleaning covers the floor area.

Avoid it if: Large houses needing an hour of continuous powered cleaning in one go.

Who the Symphony Diet 12T 12-Litre Personal Tower Air Cooler is for

Buy it if: Anyone in dry inland heat wanting cooling at roughly a tenth of an air conditioner's running cost.

Avoid it if: Anyone in Mumbai, Chennai, Kolkata or any coastal humidity -- evaporative cooling does not work in damp air.

Specifications, side by side

9 of 22 rows differ. Differences first.

Specification	Dyson V15 Detect Cordless Vacuum Cleaner	Symphony Diet 12T 12-Litre Personal Tower Air Cooler
Price	₹65,900	₹6,290
Annual energy use	Roughly 15 kWh a year at 20 minutes twice a week, about Rs120 at Rs8 per unit	Roughly 110 kWh a season at 8 hours a day for 90 days, about Rs880 -- against roughly Rs9,000 for a 1.5 ton air conditioner over the same period
BEE star rating	Not rated -- BEE does not cover vacuum cleaners	Not rated -- BEE does not cover evaporative coolers
Capacity	0.77 litre bin	12 litre tank, rooms up to about 10 square metres
Dimensions	126 x 25 x 26 cm	30 x 30 x 84 cm
Installation	None; wall dock included	Free standing, needs an open window
Noise level	About 84 dB on boost	About 52 dB
Rated power	230 W peak at the motor	185 W
Refrigerant	Not applicable	None -- water evaporation
Weight	3.1 kg	7.5 kg
BEE rating year	Not applicable	Not applicable
ISEER	Not applicable	Not applicable
Warranty	1 Year Official Brand Warranty	1 Year Official Brand Warranty
Air throw	not published	About 6 metres
Cooling method	not published	Evaporative -- water absorbs heat as it evaporates, which also adds humidity
Filtration	Whole-machine HEPA, sealed	not published
Laser head	Illuminates fine dust on hard floors at a low angle	not published
Runtime	Up to 60 minutes on eco with the non-motorised tool, about 8 minutes on boost with the main head	not published
Runtime caveat	The advertised 60 minutes is eco mode with a non-powered tool; realistic carpet cleaning is 20 to 30 minutes	not published
Suction	230 air watts on boost	not published
Ventilation	not published	Requires an open window; a sealed room becomes humid and uncomfortable
Where it does not	not published	Coastal humidity. In Mumbai or Chennai it adds moisture to already saturated air and provides little cooling
Where it works	not published	Dry heat. In Delhi or Jaipur in May it works well

Every row is a figure one or both products record. A blank is a figure the catalogue does not hold, not a zero.

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