We're often asked to recommend the best windshield mount to use for shooting video with TrackAddict. The problem is that what works well for one device often isn't so great for another... Some mounts don't fit certain devices very well (often due to button placement), and some devices or their cameras are far more susceptible to vibrations and wobbles than others. In addition to video quality, this can also impact the accuracy or smoothness of your G-force accelerometer readings.
I've recently set out to revisit this and find a solid, no-nonsense, mounting solution that works well for a variety of smartphones. To cut to the chase, my new preference going forward is the PanaVise 809 Suction Cup with the iStabilizer smartMount (described and pictured further below).
Update: It seems more difficult and costly to find the iStabilizer these days (late 2018), but this device from Vastar is of the same design: https://www.amazon.com/gp/product/B00WFNNNCC
Here's some test footage from a Nexus 5 and then a Samsung Galaxy S5, captured using a few different mounting solutions:
YouTube Link: http://www.youtube.com/watch?v=g8nJ354QjgI
The Nexus 5 was chosen because it is fairly susceptible to wobble, which helps make it easier to see the difference between mounts. The Galaxy S5 is generally better at getting stable footage and can get a good result with a wider variety of mounts. These were ~55 MPH highway tests; any wobble you see here could be a bit worse under race track conditions.
The mounts used in this video were:
A) Bracketron IPM-495-BL sticky suction cup mount
Popular choice, simple, and inexpensive. Video stability has been good with some phones, but wobbly with some others. Make sure the suction cup doesn't have dirt or junk stuck to it, or it may fall off of your windshield.
Note: The video showed this mount with the Nexus 5, but not the Galaxy S5
B) RAM X-Grip w/ suction cup mount
Another popular choice, but some phones might need to be mounted off-center to avoid having their buttons pressed. Video stability has been good with some phones, but wobbly with some others.
C) PanaVise Model 809 suction cup + iStabilizer smartMount (Smartphone Tripod Adapter)
This setup is my new preference. It gave me pretty stable footage in the most situations, felt solid, and fit different phones pretty well. It's also an easy way to mount a Qstarz BT-Q818XT GPS (for Android), using some industrial strength Velcro on the top of the iStabilizer.
Important: For best results, use the mounting point in the center of the back side of the iStabilizer, like pictured below
PanaVise 809 and iStabilizer - small.jpgCameraMount - PanaVise 809 and iStabilizer - with Qstarz GPS - cropped and adjusted.jpg
Your mileage may vary, and race track conditions can differ from this simple highway test. The quality of video footage is mainly influenced by three things:
1) Mount: You want it to be sturdy, firmly attached to the vehicle/windshield, and to hold your device snugly. Generally, you'll want it to be more compact and have everything positioned closely together, rather than to have the device attached on long arms or bars. Suction cup mounts can work very well, but ones that have an adhesive on the cup may be problematic due to junk getting stuck to that after installing and removing it several times.
2) Device & Camera: The quality of your device's camera, the focus modes it supports, its stabilization hardware/software (if any), camera location, and it's overall physical weight.
3) Conditions: Try to avoid excess vibration, objects in the camera's view, dirt or pits on windshield, etc.