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- Automotive. Accessories with a special lock designed to securely hold the smartphone in the passenger compartment of the vehicle. Holders solve the age-old problem associated with the lack of a suitable place to store your phone in the car. Such devices are clipped to the parts of the car interior, usually in the area of \u200b\u200bthe dashboard or windscreen. Holders allow the driver to talk while driving without being distracted from the road, and also use the smartphone as a navigator or music player. - Bicycle / moto. Holders for fixing a smartphone on the steering wheel of bicycles and motorcycles. For reliable installation on the steering column, such devices usually provide screw clamps. Holders for bicycles and motos allow you to place your smartphone in the field of view, using it while driving as a navigator or on-board computer.

- Desktop. Desktop holders and stands are used for the convenience of using a smartphone on the desktop, in the kitchen while cooking and in other similar life situations. Devices with a desktop mount allow you to place the gadget so that it is convenient to watch videos, read news or recipes, and talk on the speakerphone. At the same time, the hands remain free and you do not have to look for an impromptu phone stand.

- Floor. Floor holders for mobile gadgets are rare.... Structurally, they consist of a stable platform and a high stand, which can have several sections for adjusting the height of a smartphone or tablet. The position of the "head" with fasteners for fixing mobile devices in the floor stands is adjusted according to the angle of inclination. Holders of this type can be used for comfortable viewing of multimedia content, shooting videos for popular social networks without anyone's help, etc.

The method of fixation provided by the design of the holder.

The main methods of such fixation are on a suction cup, on an air duct grille and on an adhesive surface. Rarer options are on the dashboard, on the headrest, in the CD slot, on the rearview mirror, on the handlebars of a bicycle or motorcycle, clamps / clips, non-standard and free-standing mounts. There are devices that combine several options at once - for example, on a suction cup and on a grille using a clothespin. At the same time, in some models, different types of fasteners are initially included in the kit, in others, the fixation method depends on the modification; these nuances should be clarified when choosing. As for the features of each of the individual types of fasteners, they are as follows:

— Suction cup. The suction cup allows you to attach the device to the dashboard, windshield or any other relatively flat surface. At the same time, unlike a sticker, such a mount is reusable. On the other hand, suction cups are generally less reliable, and on rough and textured surfaces the...y hold poorly, or do not hold at all.

— On the air duct grille. Mounting on the air duct grille is one of the most popular ways to install the holder in the car. The fact is that air duct openings are available on almost any dashboard, and they are usually located quite conveniently for installing holders. Directly according to the methods of mount the model to the ventilation grille, clamps, clothespins or hooks can be used.

— Adhesive surface. Fastening with a special adhesive pad — similar to installation with double-sided tape (only in this case the “tape” is initially attached to the device body, and before installation it is enough to remove the protective film on the adhesive surface). This type of mount is suitable for both completely smooth and embossed surfaces, it is stronger than suction cups, but it is disposable — it is not easy to remove the installed device, and the fastener itself usually does not imply reuse. Therefore, such fasteners are rarely used in their pure form — most often they are provided as a spare (or alternative) option for mount to the grill.

— On the dashboard. The holder is attached to the elements of the dashboard in the car interior using a special clamp that can be adapted to different surface thicknesses. A striking example of the use of such a fastener is the placement of a smartphone on the characteristic arc of the "dashboard" in the area behind the steering wheel.

— On the headrest. A convenient option for attaching a smartphone or even a tablet for passengers in the back seat of a vehicle. As a rule, such holders have two “paws” with an adjustable extension in width, which cling to the headrest pins. The second option for implementing the mount is fixing it on the headrest using Velcro or a strap.

— On the handlebar. Fastening to the handlebar of a bicycle, motorcycle or other similar vehicle. The basis of such mount is usually a ring-clamp, which is put on the handlebar tube and firmly fixed to it.

— Into the CD slot. Such holders are equipped with special spacers that are inserted into the empty CD slot of a standard or non-original car radio and are securely fixed in it. The gadget fixed in the holder is visible to the driver and allows for the efficient use of the unused CD slot.

— On the rearview mirror. Typically, such holders are fixed with clamps or adjustable brackets around the rearview mirror in the car. A platform for installing a mobile device is placed on the adjustable rod from such a fastener. The smartphone placed under the rearview mirror is in a convenient place for the driver — its functions can be used without being distracted from the road.

— Clamp/clip. A clamp is a tabletop fastener based on a screw mechanism with one fixed jaw, the second one can move back and forth when the screw is turned. When the clamp is tightened, the jaws squeeze the flat surface of the table, fixing the holder on it. A clip is a fastener in the form of a large clothespin, consisting of two halves that are attracted to each other by a spring. Clips are less reliable than clamps, which is why they are used mainly among tabletop models of relatively small "load capacity".

— Non-standard. Fastening devices that do not fall under the standard common types of fastenings. In particular, this category includes models with installation in a cup holder and similar solutions.

- Clamp. The simplest mechanical lock: two spring-loaded jaws that compress the device from the sides. The compatibility of those with a specific phone is limited only by the size of the phone; at the same time, the design of the spring jaws itself allows you to adjust the width within certain limits, and in some models, additional adjustment in width is also provided. Thus, the clips are compatible with a large number of gadgets, while they are very simple and inexpensive. The disadvantages of this option include a somewhat lower reliability than, for example, in gravitational devices: the device located in a conventional clamp, usually, is not supported by anything from below.

- Gravity clamp. A latch of this type covers the smartphone on the sides and bottom, while the bottom support works as a trigger sensor: when it goes down under the weight of the gadget, the side jaws converge and compress the device from the sides. Accordingly, to remove the smartphone, you need to slightly lift it. Compatibility in such clamps is also limited only by the size of the device; at the same time, they are noticeably more reliable than conventional clamps, and they are somewhat easier to use, which is why they are more common.

— Magnet. Holder in the form of a strong permanent magnet. Such clamps are very easy to use, as well as reliable and durable (there are no moving parts in the design); in addition, they have no restrictions on the size of the rechargeable gad...get. On the other hand, two other restrictions are relevant for magnets - by weight (it should not be too large) and by materials (not every case, even a metal one, can be effectively magnetized). And although these points are taken into account in many devices with wireless charging, however, the possibility of using it with a specific smartphone (and especially a massive tablet) should be specified separately.

- Proximity sensor (touch clamp). Automatic latch with an electronic sensor that recognizes the proximity of the gadget or the user's hand. “On the way”, the jaws of the latch diverge by themselves, and when the device is installed, they are compressed; when the smartphone is removed, respectively, the clip reacts to the user's hand and disables the fixation. Such holders are very convenient, but relatively complex and expensive; In addition, the mechanism needs power to operate.

The presence of a flexible leg holder or stand in the design.

Such a part can bend anywhere and in any direction. This provides additional convenience when adjusting the position of the installed gadget: the freedom of movement of the flexible leg is noticeably higher than that of other types of hinges.

Clamp width in millimeters provided by the holder or stand.

In this case, the width of the clamp means the maximum distance that the gadget fasteners can be spread. In other words, this is the maximum size of the smartphone, which can be hold.

The parameter determines whether it can be used in conjunction with a holder or stand for gadgets with a designated range of screen diagonal dimensions in inches. As a rule, it is customary to indicate the maximum allowable diagonal of the display of the device, which can be fixed in the jaws of the holding device.

Holder models designed not only for smartphones, but also for tablets.