The Mercedes-Benz GLB-Class is a compact luxury SUV with a genuinely distinctive interior. Round air vents, a large central touchscreen, and premium materials throughout make it more of a mounting challenge than most vehicles. The good news is that the market has caught up, and there are now several custom-fit options designed specifically for this vehicle. This guide covers the best phone mounts for the first-generation GLB-Class (2020 through 2026), organized by mounting location so you can find what works for your setup.
Quick Comparison: Best GLB-Class Phone Mounts
| Mount | Best For | Location |
|---|---|---|
| szyuchen Round Vent Mount | All phones, round vent clip | Air vent |
| FETUSI MagSafe Screen Clip | MagSafe iPhones, 10.25″ screen | Screen edge |
| LUNQIN Cradle Mount | All phones, screen edge clip | Screen edge |
| LISEN MagSafe Suction Mount | MagSafe iPhones, wireless charging | Windshield/dash |
| WeatherTech CupFone | All phones, universal fit | Cup holder |
Understanding the GLB-Class Interior
Before choosing a mount, it helps to understand what you are working with. The first-generation GLB-Class (2020-2026) features circular air vents, which immediately rules out most standard vent mounts on the market. Generic flat-blade vent clips will not grip a round vent reliably. You need a mount specifically engineered for circular vents, and fortunately there are several good ones.
The central touchscreen in the GLB-Class measures 10.25 inches. This is relevant because several of the best custom mounts for this vehicle clip onto the bezel of that screen rather than to a vent or the windshield. This approach keeps the phone within easy sightline of the driver without obstructing the screen itself.
The windshield is a solid fallback and works well with suction-based mounts. The dash surface is relatively flat near the base of the windshield, which opens up adhesive-pad options too. Cup holders are accessible in the front of the cabin and will accommodate a standard cup holder mount without issues.
Best Vent Mount for the GLB-Class
szyuchen Round Vent Mount
The szyuchen round vent mount was built with Mercedes-Benz circular vents in mind. Standard vent mounts use flat clips that rely on horizontal blade fins for grip. The GLB-Class does not have those. The szyuchen uses a reverse elastic clip mechanism that wraps around a round vent, which gives it a solid grip where generic mounts simply cannot hold.
The cradle itself handles phones up to 7 inches tall and 3 inches wide, which covers everything from a standard iPhone to a large Android. A 360-degree rotating head lets you switch between portrait and landscape orientation. The silicone padding on the cradle arms protects your phone’s finish. Installation takes about a minute and requires no tools.
If you want to mount a phone in the vent area of your GLB-Class without drilling or adhesives, this is the right starting point. It covers 2016 through 2024 model years across a wide range of Mercedes models, so it also works on older GLB trims if you have one.
Best Screen Clip Mounts for the GLB-Class
Screen edge mounts are among the most popular options for Mercedes drivers because they solve the round vent problem entirely. They clip to the bezel of the central display, positioning the phone just above or beside the screen where it is easy to see without reaching. Two strong options stand out for the GLB-Class.
FETUSI MagSafe Screen Clip Mount
The FETUSI is the pick for iPhone users who want MagSafe wireless charging built into their mount. It clips to the edge of the 10.25-inch display in the GLB-Class and holds MagSafe-compatible iPhones (12 through current models) magnetically with 20 N55 magnets. The phone snaps on and off in one motion.
The mount rotates 360 degrees so you can dial in portrait or landscape positioning. Because it uses MagSafe alignment, there are no cradle arms squeezing the sides of your phone. For GLB-Class drivers using a recent iPhone and wanting clean wireless charging while navigating, this is the most capable option in the lineup.
LUNQIN Cradle Mount
The LUNQIN is the screen clip option for drivers who want a traditional spring cradle rather than magnets. It clips to the 10.25-inch display bezel and holds phones from 3.5 to 7 inches with adjustable cradle arms. Full 360-degree rotation is included, and the mount ships with silicone padding to protect the screen bezel on installation.
This mount covers 2020-2026 GLB models as well as the GLA (2021-2026), CLA (2020-2025), and EQB (2022-2025), making it useful across multiple Mercedes compact models if you have more than one in the household. Android users, or iPhone users without MagSafe cases, will find this the more practical choice over the FETUSI.
Best Windshield Mount for the GLB-Class
LISEN 15W MagSafe Suction Mount
If you prefer your phone higher in your field of vision rather than at center console level, a windshield mount is the answer. The LISEN uses a vacuum suction lever lock that adheres to the windshield or a smooth dash surface. It is not a standard suction cup; the vacuum mechanism creates a strong seal that holds in heat and cold without the gradual slip you get from older suction designs.
The arm provides 360-degree rotation with a tri-axis joint that tilts, folds, and swivels so you can position the phone exactly where you need it without blocking your sightlines. For MagSafe iPhone users, 15W wireless charging is built in, so the phone charges the moment it snaps onto the mount. A USB-C cable is included.
This is a universal mount, not GLB-specific, but it works well in this vehicle because the windshield is a clean, accessible mounting surface. It also works on the dashboard with the included adhesive pad if you prefer not to use the windshield.
Best Cup Holder Mount for the GLB-Class
WeatherTech CupFone
WeatherTech is one of the most recognized names in automotive accessories in the US, and the CupFone is their flagship phone mount. It drops into the cup holder and uses an interchangeable base cup system to fit cup holders ranging from 3 to 4 inches in diameter, which covers virtually every front cup holder configuration including the GLB-Class.
The CupFone holds phones from 2.37 to 3.37 inches wide, which covers all current iPhone and Android models. The open design gives full access to charging ports and buttons. Tilt and rotation adjust freely so you can find your preferred viewing angle. A rubber StickySleeve wraps around the base to prevent the mount from spinning in the cup holder while driving.
WeatherTech designs and manufactures this product in the United States and backs it with a lifetime limited warranty. For GLB-Class drivers who want a universal, tool-free mount that leaves no marks on the vehicle, the CupFone is a dependable choice.
Which Mount Is Right for Your GLB-Class?
The szyuchen round vent mount is the right call if you want a quick, clean vent-based solution and do not need wireless charging. It is the only vent option here that actually works with the GLB’s circular vents.
For screen clip mounts, the choice comes down to your phone. iPhone users with MagSafe should look at the FETUSI. Everyone else, including Android users, will be better served by the LUNQIN cradle.
The LISEN suction mount is the pick for drivers who want their phone higher up and closer to eye level, and particularly for MagSafe iPhone users who want 15W wireless charging without a vehicle-specific bracket.
The WeatherTech CupFone is the safest universal option. It requires no vehicle-specific fitment, leaves no marks, and moves from car to car without any hassle. If you want something that just works without research or fitment concerns, start here.
We have covered several other Mercedes models if you are interested in comparing notes on interior mounting options. The Mercedes-Benz GLC 300 and Mercedes-Benz GLE 350 face similar round vent challenges, and the Mercedes-Benz GLK 350 is worth a look if you have an older model.
