Although its mounting arm is short, the sticky base of the U-Grip Plus lets it adhere to windshields and dashboard materials, while spring-loaded clamping arms hold phones as wide as the Samsung Galaxy S4 in place.
The Mi-T Grip has the advantage of sticking to dashboards and consoles as well as windshields thanks to its tacky suction cup. A short mounting arm and minimal articulation can make it tough to position correctly.
Bracketron's MobileDock uses an adhesive suction cup, capable of sticking to many surfaces in a car. Similar adhesive material holds the phone in place on the MobileDock. Although it is easy to attach and remove the phone, over time the holder loses adhesion, so it will have to be washed periodically.
The long mounting arm of the Clingo Universal Car Phone Mount puts your phone in easy reach when stuck to most windshields. Its innovative adhesive pad makes attaching and removing a phone particularly easy, but that pad also must be cleaned on a regular basis to maintain adhesion.
Designed only for the iPhone 4/4S, the Griffin AirCurve has a unique passive audio amplifier to boost the sound output from the phone. It includes two semipermanent mounts for a car's vent or windshield, which makes it difficult to move from car to car.
The Easy One Touch is one of the better mounts we've seen. Its sticky suction cup base adheres to dashboard as well as windshields, and it employs a unique clamping section that makes one-handed use easy.
The PanaVise 15504 PortaGrip is constructed of thick plastic and its hinges are engineered well, making it extremely unlikely to break. It has an excellent suction mount for windshields, and holds phones well.
As an alternative to mounting your phone to the windshield, the Satechi SCH-121 includes a plug designed to fit most cup holders. Although not as visible as a windshield mount, the Satechi SCH-121 keeps phones closer to hand. The kit also includes a tablet holder.
The Innotraveler can hold large phones or small tablets in a horizontal placement, using a sticky surface to hold devices in place. That surface will have to be washed frequently, and the mount itself has limited adjustability.
Similar to the TackForm C-Fit, the Steady Clip sticks to most flat surfaces in a car, extending the possible mounting positions. Its clip-style phone holder makes for easier operation than some clamp-style holders, but it also does not hold as well.