Great news! I improved tablet holder for sport car seats. Now it can hold also any Smartphone!
I found a solution to hold both tablet and smartphone thanks to custom spring-loaded smartphone adapter. I also made quite a few improvements to create better product.

Sports seats in a car are great for sporty driving, but the headrest is connected to the rest of the seat, so conventional tablet holders or stands can't be used. So I invented a simple hook-and-loop attachment mechanism for tablets. From now on, your little ones can watch their sessions without restriction. It's also possible to use it when the kid is sitting on the front seat (fits on both sides of the front seat ).

Tested by tens of happy families, tested on VW, Skoda, Mercedes sports car seats, it will probably be suitable for most other brands as well. Other brands will be tested soon. If you have a car of another brand, please contact me to check the compatibility.

The mount is compatible with all tablets that meet these dimensions:
- Minimum thickness: 5.5mm (0.22")
- Maximum thickness: 10.5mm (0.41")
- Minimum height: 180mm (7.09")
- Maximum height: 280mm (11")

Thanks to Smartphone adapter, it should support any smartphone (from size of iPhone 12 Mini up to iPhone 15 Pro Max)

Made by FDM 3D printing from PET-G plastic and aluminium, Eco friendly packaging.
In case of problem/breakage of any part, I will send new part separately.