Many cars still give you a single cigarette lighter socket to work with, and that one port often has to power a phone, a charger and anything else you plug in. The SOAIY 3 in 1 Cigarette Lighter Car Mount is designed around that constraint, turning the 12V socket into a combined phone cradle and charging point. This is an editorial overview based on the current Amazon listing and the published specifications, not a hands on review, so the goal here is to explain what the product claims to do, who it suits and which details you should confirm for yourself before buying.
What it is
The SOAIY 3 in 1 Cigarette Lighter Car Mount is a car phone holder that plugs directly into your vehicle's 12V cigarette lighter socket rather than clipping to an air vent or sticking to the dashboard or windshield. As the product name makes clear, it is specifically described as not for the center console or the window. The 3 in 1 label refers to the way it bundles three jobs into one unit that lives in the lighter port: a phone cradle mounted on an adjustable gooseneck, a dual USB charger and a voltage detector that reports the vehicle voltage.
According to the listing, the cradle is built to hold phones between 1.7 and 3.7 inches in width, and it rotates a full 360 degrees so you can set the screen to portrait or landscape. The gooseneck is adjustable, which is what lets you angle the phone toward you after the base is seated in the socket. Because the whole assembly is anchored at the lighter port, the mounting position is fixed low near the area of the dashboard or console where that socket sits, and the gooseneck does the rest of the positioning work. If you have seen rigid socket chargers before, this is the same idea with a flexible neck and a cradle added on top.
Key features
Here is what the current listing states about the product. Treat each point as a manufacturer claim to confirm rather than a measured result from first hand use:
- Plugs into the 12V cigarette lighter socket, which serves as both the mounting base and the power source.
- Dual USB output rated at 3.1A, according to the listing, so the mounted phone and a second device can draw power at the same time.
- Adjustable gooseneck for angling the phone after the base is seated in the socket.
- 360 degree rotating cradle for portrait or landscape viewing.
- Spring style cradle sized for phones 1.7 to 3.7 inches in width.
- Built in voltage detector that shows the vehicle voltage, which is the third function in the 3 in 1 name.
- Explicitly described in the title as not for the center console or window.

SOAIY 3 in 1 Cigarette Lighter Car Mount with Voltage Detector and Dual USB 3.1A Charger
A socket mounted phone cradle on an adjustable gooseneck with two USB ports rated 3.1A and a built in voltage readout, sized for phones 1.7 to 3.7 inches wide.
Check price on AmazonWho it is for
This style of mount makes the most sense for drivers who want navigation and charging from a single socket without adding a vent clip or a sticky dashboard pad. If your phone mostly lives on a maps app during drives and you also like to keep it topped up, having the holder and the charger in the same unit removes one accessory and one cable run from the cabin. The voltage readout is a bonus for anyone who likes to keep an eye on a battery that is getting older, since it puts a rough voltage figure in view without a separate meter.
It is also a reasonable pick for people who move the mount between vehicles, because a socket mount is not glued or clipped to anything permanent. You pull it out of one car and plug it into the next. On the other hand, if you already rely on your only lighter socket for a dash cam, a tyre inflator or another charger, think carefully before committing that port to a phone mount, because this product will occupy it.
Strengths on paper
The clearest strength is consolidation. One item delivers a cradle, charging and a voltage display, so you are not stacking a vent mount on top of a separate USB adapter. The dual USB design, as described, means a passenger device or a second cable does not have to compete for the single port. The adjustable gooseneck and the 360 degree cradle give you some freedom to position and rotate the screen even though the base location is fixed by where the socket sits.
The stated width range of 1.7 to 3.7 inches covers a broad span of modern phones, including many larger handsets, so most mainstream devices should fit the cradle on paper. And because the mount draws its power and support from the lighter port, installation is as simple as pushing it in, with no adhesive to cure and no clips to wrestle onto a vent. These are listing based strengths, so treat them as the starting point for your own checks rather than as verified performance.
Things to check
A socket mount lives or dies by a few practical details, so go through these before you buy:
- Socket fit and depth. Cigarette lighter sockets vary in diameter and depth between vehicles. Confirm the mount seats firmly in your particular car so a heavy phone on a gooseneck does not droop or work loose.
- It occupies your 12V port. If this is your only lighter socket, this mount will take it. Decide whether you can give up that port or whether you need a splitter for other devices.
- Phone size and weight. The listing gives a width range of 1.7 to 3.7 inches, but a large phone in a thick case adds weight that a gooseneck has to hold steady over bumps. Check your phone against the stated range and consider the case.
- Charging output and port type. The listing describes a dual USB charger rated 3.1A. It does not spell out how that current is split between the two ports, and the port type is not clearly stated, so verify on the listing whether the ports are the type and speed you need for your device.
- Cable. A charging cable is not always included with mounts like this. Check the listing to see what is in the box so you are not surprised, and plan to use a cable you already own if none is supplied.
- Placement. Because the base is fixed at the socket and the neck is adjustable, make sure the final position does not block your gear selector, climate controls, buttons or your view of the road. Keep it clear of anything that could interfere with safe driving.
- Verify the specs. Any figure that is not explicitly on the listing should be confirmed there before you rely on it. Listings change, so the live page is the source of truth.
How it compares
It helps to frame this against the other common ways to mount a phone in a car. A socket mount like this one draws power and support from the 12V lighter port, which is its main advantage and its main trade off: you get charging built in, but you give up that port and you are tied to its low, fixed location near the console. A vent mount clips to an air vent and sits higher and closer to eye level, but it can block airflow, depends on the shape and sturdiness of your vents and usually does not charge on its own. A dashboard or windshield mount uses a suction cup or adhesive base and offers the most placement freedom and often the highest viewing position, but it leaves an adhesive mark or suction ring, can loosen in heat and also typically does not include charging.
So the SOAIY sits in the socket mount category, where the pitch is simplicity and an all in one footprint rather than the high, flexible placement of a vent or dash mount. Which one is right depends on whether charging from the same unit matters more to you than screen height and placement freedom. The right choice is about your priorities and your car rather than one option being universally better than the others.
Verdict
On paper, the SOAIY 3 in 1 Cigarette Lighter Car Mount is a sensible pick for drivers who want one tidy unit that holds the phone, charges through two USB ports and shows the vehicle voltage, all from the lighter socket. The adjustable gooseneck, 360 degree cradle and the stated 1.7 to 3.7 inch width range cover the basics most people need. The caveats are the ones that come with every socket mount: it claims your 12V port, it sits low, and a few details such as the exact port type, how the 3.1A is shared and whether a cable is included are worth confirming for yourself. If that trade off fits your car and your routine, it is worth a closer look. Compare the claims here against the live page and check the current listing for the current specifications, box contents and images before you decide.
This is an editorial overview compiled from the current Amazon listing and published specifications, not a hands on review; we have not tested, used or installed this product. ProductPickly may earn a commission from qualifying purchases made through links on this page.