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Comparison Samsung EP-PN920 vs Samsung EP-P3100

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Samsung EP-PN920
Samsung EP-P3100
Samsung EP-PN920Samsung EP-P3100
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Power adapter and cable included. The ability to charge wearable gadgets.
Typewireless chargerwireless charger
Charging areas11
Power (with 1 device)9 W9 W
Features
work indicator
work indicator
Charger connection portmicroUSBUSB C
Cable included+
Cable length1.2 m
Power adapter
Dimensions102x102x21 mm96x96x20 mm
Weight117 g100 g
Color
Added to E-Catalogdecember 2019october 2019

Charger connection port

Port used to connect the power cable to the charger. This parameter is indicated mainly for wireless models, including car models (see "Type"), but it can also be relevant for other varieties — in particular, individual docking stations.

In general, when choosing, this parameter does not play a decisive role: a power adapter with the appropriate plug must be supplied in the kit. However, information about the power plug can be useful when looking for a spare or replacement power source. The options here might be:

— USB-C. One of the miniature varieties of the USB connector; microUSB differs from similar in many respects primarily in its two-sided design (which allows you to connect the plug to either side), as well as in smaller sizes. Is a universal standard; in fact, this means that, if necessary, you can also power the charger from a “non-native” adapter with a USB-C cable – the main thing is that this adapter can provide enough power.

— microUSB. Another smaller version of the USB connector, earlier than the USB-C described above. It is considered less perfect, and therefore noticeably less often used as a power connector for wireless charger; one of the key differences is the one-way connector design, which is less convenient to connect. MicroUSB is also a common standard and allows the use of third-party power supplies.

— Lightning. Proprietary 8-pin connector used in Apple technology. However, among the chargers there are...also third-party devices with such a power connector. The meaning of this design is that, if necessary, the charger can be powered through a proprietary Apple cable, and the Apple device can be charged wirelessly.

— Original. This category includes all connectors that are not related to those described above. These can be both proprietary interfaces of a particular company, or common, but at the same time rare standards. One of the most popular types of such a plug is cylindrical, similar to the DC power connector (although not necessarily identical in size and design). However, anyway, this connection method does not allow the use of third-party power adapters, and therefore is not particularly popular.

Cable included

The presence of a cable in the delivery kit of the charger, or any other specific type of included cable.

The presence of a cable is indicated mainly for wireless devices (see “Type”) — in such cases, we are talking about the power cable of the charger itself. For wired models, the type of connectors on the stock wire (s) for charging gadgets is usually specified. At the same time, the USB port is used by default to connect to the charger itself, so this plug may not be mentioned in the description of the wire. On the other hand, there may be such connectors:

USB-C. A miniature version of the USB connector, gradually replacing microUSB in modern portable devices. It has a convenient reversible plug design, and can also provide some advanced power options not available with microUSB. Also note that USB-C can be used in a cable not only to connect to a gadget, but also to connect to the charger itself (along with traditional USB); so on the market you can find corresponding cables like "USB-C — microUSB", "USB-C — Lightning", etc.

microUSB. Universal connector, extremely popular in portable gadgets of various types; only relatively recently has it begun to give way to the more advanced USB-C (which differs from it in its one-sided design and lower power supply).

Lightning. Universal connector, used e...xclusively in portable Apple devices. Like USB-C, it has a two-way layout, but a slightly different design.

Cable length

The length of the cable supplied with or included with the charger. For wireless models, the length of the power cable of the charger itself is indicated here, for wired models, the length of the cord for charging gadgets

Anyway, a longer cable gives more freedom of movement, but it creates inconvenience for short distances. Also note that charging is supposed to be used in the immediate vicinity of sockets, so wires longer than 2 m are practically not found among such devices. A length of more than 1.5 m is considered significant, from 1 to 1.5 m — medium, from 0.5 to 1 m — small, and in some models there are wires shorter than 0.5 m.

Power adapter

Whether or not a power adapter is included with the charger.

This feature is relevant primarily for wireless models, including the ones for cars(see "Type"). Such devices usually consist of three parts: the charger itself with a platform/stand/latch, a charger power cable and an adapter for connecting the wire to a power outlet or cigarette lighter. If the presence of an adapter is initially indicated in the specifications, then the charger is supplied in a complete set; it is these models that you should pay attention to if you want to use the device right out of the box, without the hassle of finding additional accessories.

Also, this feature can be indicated for individual car chargers of the traditional, wired type. This usually means that the device is similar in layout to wireless models: main unit, power cord and cigarette lighter adapter. This design allows you to use the charger at some distance from the dashboard of the car — for example, take it to the back seat, giving passengers the opportunity to charge their phones. In this case, the adapter can have its own charging outputs (usually USB) and can be used separately from the main unit.
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