Patented

RAM® X-Grip® Universal Phone Holder with Ball - B Size

Part#: RAM-HOL-UN7BU
UPC: 793442932298

Compatibility

Apple

iPhone 12 mini iPhone 13 mini iPhone 15 Pro iPhone 8 iPhone SE iPhone X iPhone Xs

Bixolon

SPP-R200II SPP-R210

Google

Pixel 2 Pixel 3 Pixel 3a Pixel 4 Pixel 4a Pixel 5 Pixel 8

LG

Q6

Motorola

razr

Nokia

1 3310 Dual SIM 8110 4G

Samsung

Galaxy A10e Galaxy A20e Galaxy A40 Galaxy A6 Galaxy J2 Galaxy S10 Galaxy S10e Galaxy S20 5G Galaxy S22 5G Galaxy S23 Galaxy S24 Galaxy S25 Galaxy S8 Galaxy S9 Z4

Sony

Xperia XZ1 Compact Xperia XZ2 Compact

Kit Components

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$39.49

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Overview

The RAM® X-Grip® Universal Phone Holder (RAM-HOL-UN7BU) is a rugged, spring-loaded phone mount designed to securely hold a wide range of phones—with or without a case. Featuring the signature four-leg “X” design, the cradle expands and contracts to provide a strong, open-air grip that keeps your device fully accessible without obstructive foam pads or plastic covers. Constructed from high-strength composite and stainless steel, the X-Grip® is built to withstand vibration and demanding environments, making it ideal for vehicles, motorcycles, and outdoor applications. Compatible with a wide range of RAM® double socket arms and mounting bases, this universal phone holder integrates with RAM® ball and socket technology for near-infinite adjustability and added shock and vibration damping. A device tether is included for extra security in off-road and high-vibration use cases.

Features

  • Spring-loaded 'X' design with rubber caps sports great holding power without hiding your phone; includes optional device tether for peace of mind during rugged use
  • Compatible with any B size RAM® Mounts double socket arm; ball and socket technology allows for near-infinite adjustability
  • Made of powder-coated, marine-grade aluminum, stainless steel components, and high-strength composite for durability and reliability in the most demanding environments
  • Backed by a lifetime warranty

hardware included:

(1) Optional Tether
(1) Glue Tube for Rubber Caps

holder dimensions:

Width Range: 1.875" - 3.25"
Depth Range: .875" max

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

High strength composite
Stainless steel

packaging type:

Poly Bag

Weight:

0.25 lb

Additional Information:

Exposure to vibrations, like those generated by high-powered motorcycle engines, might impact iPhone cameras. Click here to learn more.

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

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RAM® X-Grip® Universal Phone Holder with Ball - B Size
$39.49

Add-on & Accessories

Socket Arms
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Ball Bases
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X-Grip® Caps
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