Editors' note: Portions of this review were taken from our evaluation of the, since that device and the TackForm C-Fit are almost identical.
The TackForm C-Fit is a deceptively simple universal suction-cup mount for smartphones that holds onto almost any smooth surface with its sticky suction cup.
The C-Fit has only one point of articulation, at the ball joint, where the gripping claw meets the mounting arm. So care must be taken to properly orient the base when placing the C-Fit. This can make getting the C-Fit into the perfect position a bit tricky, but not impossible in most cases. On the other hand, with only one articulation point and a relatively short arm, the C-Fit is quite stable, exhibiting none of the shakiness and vibration that longer, more flexible mounts do. However, the C-Fit perhaps performs best when it's not stuck to your windshield.
The suction cup at the base of the TackForm C-Fit is made of tacky, semiadhesive material that sticks to most solid surfaces. This stickiness, combined with the suction generated by locking the C-Fit's suction cup in place with a lever, resulted in a remarkably tenacious grip on whatever surface I mounted it on. This strong grip is great for keeping a smartphone device secured and stable while driving, but it can make the mount a tad difficult (but not impossible) to remove between trips. Additionally, the tacky material has a tendency to pick up lint and dirt when stored or transported without a cover, so the C-Fit is probably best left semipermanently in place in your vehicle between trips, rather than repeatedly placed and removed as a conventional suction cup mount would be. If the grip does get dirty and lose its stickiness, it can be cleaned with a wet cloth. When the cup dries, it will be sticky again.
The tackiness of the C-Fit's suction cup means that it can be attached to leather, leatherette, wood, and that oddly rubberized "soft touch" dashboard material. I particularly enjoy the dashboard-mounting option, because it allows me to mount the phone low and near the radio controls, where it can be easily reached for destination input or changing songs while the windshield remains unobstructed.