FPN Universal Phone Holder Base for RAM Mounts B Size

The FPN Universal Phone Holder Base is a 1" (25mm) ball mount designed to attach to RAM B-size double socket arms, offering fast one-handed locking, a vibration-dampening system to protect smartphone cameras, and adjustable fit for devices 4.7"–7.2".

This compact mounting base converts your RAM B-size double socket arm into a phone-ready cradle while minimizing road or vehicle vibration. Built from a high-strength composite, the unit focuses on steady, repeatable positioning for navigation, recording, or hands-free use. Its open-frame camera-friendly layout and 360° rubber-coated ball head let you aim the lens or screen without obstruction.

How quickly can I mount or remove my phone?

Locking and releasing the phone is engineered to be nearly instant. The mechanism locks with a single press and releases with another, allowing secure one-handed operation while you stay focused on driving or riding.

• One-second press-to-lock and press-to-release design
• Adjustable knob to fine-tune grip pressure
• Single-handed insertion and removal for convenience
• Firm hold without excessive tightening

Will this protector help keep my phone’s camera safe from vibration?

The built-in vibration dampener reduces transmitted shocks and small oscillations that can affect optical components and video stability. It doesn’t eliminate all motion but substantially reduces high-frequency vibration that could blur images or stress camera modules over time.

• Professional-grade dampening element isolates road vibration
• Rubberized ball head adds shock absorption and grip
• Helps maintain steadier video and clearer photos while moving
• Compatible with phones using OIS or advanced camera systems

Does it block camera, sensors, or touch controls while mounted?

No. The base uses a low-profile, open-frame shape that leaves cameras, voice and proximity sensors, and the touchscreen accessible. You can use face-unlock, video, and gestures without removing the device from the mount.

• Open-frame layout avoids camera and sensor obstruction
• 360° rotation lets you orient portrait or landscape easily
• Unrestricted access to charging ports and buttons in most layouts
• Designed for uninterrupted use of biometric and camera features

Which phones and mounts will this base fit?

The holder base fits most smartphones with screen sizes between 4.7" and 7.2" and thickness under 0.6". It attaches to standard 1" (25mm) RAM-style balls and integrates with B-size double socket arms common in vehicle and marine setups.

• Compatible with phones 4.7"–7.2" wide and <0.6" thick
• Standard 1" ball socket for RAM B-size double socket arms
• Composite construction for strength and light weight
• Rubber-coated ball for secure, non-slip positioning

Who is this for? The FPN Universal Phone Holder Base suits drivers, motorcyclists with compatible mounts, content creators shooting while mobile, and anyone who wants a quick-release, camera-friendly mount for navigation or hands-free capture. It’s ideal when you already use RAM B-size arms and need a vibration-aware solution that preserves camera access and makes mounting effortless.