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If you're looking to buy household appliances and electronics online, you'll find a huge selection for the kitchen, workplace, travel and outdoor activities. Product pages often list plenty of features, but not every specification is crucial for your everyday needs. A low price can also be offset by ongoing costs, unsuitable dimensions or missing accessories.
This shopping guide shows you which technical specifications matter before you buy, and how to avoid common marketing pitfalls.
A higher wattage doesn't automatically mean a device will work faster or be more suitable in daily use. With a microwave, for example, the wattage describes the energy output, but cavity size, power levels and ease of use are equally important. For a charger, the supported protocol – such as USB Power Delivery – matters just as much as the wattage.
A device might look small in product images, but it still needs extra room for cables, ventilation, drawers or an open door. Before you buy, you should check the external dimensions, the footprint and the clearance required for operation. This applies just as much to a desk fan as it does to a microwave with a turntable.
A 30 W USB-C charger needs a compatible cable and a device that can accept that power level. A 20,000 mAh power bank won't deliver its full stated capacity as usable energy to the connected device, because losses occur during voltage conversion. With a mini air pump for outdoor use, you should also check whether the right nozzles are included.
With an air fryer, the balance between cavity size and household needs is key. An air fryer with 3.5 litres is typically suitable for smaller households or single portions. The Aigostar air fryer with 1500 W features manual temperature control from 80 to 200 °C, a timer up to 30 minutes and a removable basket, according to the product description.
Also important are:
For a microwave, you should consider the interior size as well as the power. The COMFEE microwave with 700 W and 19 litres offers five power levels, a defrost function and a 245 mm turntable, according to the manufacturer. Before buying, check whether plates or containers will fit inside the cavity and whether the required ventilation clearances can be maintained.
A quiet desk fan is particularly important in the bedroom or home office, so a reliable noise rating is essential. The Midea MDF24JRW is stated in the product description to have a minimum noise level of 28 dB. The manufacturer also lists 30 W power consumption, five speed settings and both horizontal and vertical oscillation.
Look out for:
With a fast USB-C charger, at least three details are relevant: maximum output power, supported charging protocols and the number of ports. The Baseus USB-C GaN charger 30 W supports USB-C PD outputs with multiple voltage levels and weighs around 45 g, according to the manufacturer. GaN technology allows a compact design, but it doesn't replace the need to check your cable and device.
A Samsung power bank with 20,000 mAh and 45 W Power Delivery is aimed at users who want to charge multiple devices on the go. According to the product description, it has three USB ports, supports simultaneous charging of up to three devices and comes with a 30 cm USB-C to USB-C cable. The power bank is not water-resistant and should not be exposed to moisture or extreme heat.
Why this product fits the profile: The 3.5-litre capacity and manual controls are manageable for singles, couples and smaller kitchens.
The product description clearly states the cavity size, temperature range and timer, rather than just advertising a general power rating.
1500 W, 360-degree air circulation, temperature control from 80 to 200 °C and a removable basket.
Why this product fits the profile: For bedrooms, offices and compact living spaces, adjustable airflow, a timer and a documented noise level are essential.
Five speed settings and a stated minimum noise level make it easier to choose based on your actual intended use.
30 W, 28 dB according to the product description, 15-hour timer, remote control, plus 120° horizontal and 105° vertical oscillation.
Why this product fits the profile: Outdoor enthusiasts benefit from a compact, battery-powered device with an additional lighting function.
Battery level indicator, charging time and pressure rating are all specified. This makes it easier to plan your usage than with pumps that lack status information.
30 W, 4,800 Pa, up to 300 l/min, two 1,800 mAh batteries and 260 lm lighting according to the product specifications.
Why this product fits the profile: For professionals, travellers and users of multiple USB devices, capacity, ports and charging power are the top priorities.
The details about three USB ports, 45 W and the included 5 A USB-C cable make the compatibility check straightforward.
20,000 mAh, up to 45 W Power Delivery 3.0, three USB ports and cable included, according to the product description.
We've put together a full, regularly updated list of products that fully meet these strict selection criteria and the safety regulations in force in the EU.
Compare the product dimensions with the available space. For microwaves, you also need to consider the door opening, the turntable and the ventilation clearances required by the manufacturer. A niche should not only accommodate the external dimensions but also allow for heat dissipation.
The lifespan depends on the build quality, intensity of use, care and environment. Regular cleaning, dry storage and following the instruction manual can reduce wear. It's not possible to give a general lifespan without specific model and usage data.
The simple calculation is: Power in kW × operating time in hours × electricity price per kWh. A device with 1,500 W is equivalent to 1.5 kW. If it runs for half an hour, the consumption is 0.75 kWh. For devices with a thermostat or intermittent operation, the actual consumption will be lower depending on usage.