Skip to content
Trusted Craftsmanship
Safe & Secure Checkout
Lifetime Warranty
Hassle-free Support
SKU: SM688
Original price $34.95 - Original price $34.95
Original price
$34.95 - $34.95
Current price
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Mastercard
  • PayPal
  • Venmo
  • Visa
Original price $34.95 - Original price $34.95
Original price
$34.95 - $34.95
Current price

Introducing the Slim-Grip® Ultra Phone Seat Rail or Floor Car Truck Mount, engineered to transform your device into a reliable GPS companion for those long-haul road journeys. It’s an alternative to traditional windshield or dash mounts. Its ingenious design streamlines your dashboard or windshield, seamlessly integrating by attaching to your vehicle's seat rail or floor. With its flexible 18" gooseneck, you have total control over positioning the Slim-Grip® Ultra holder. At the same time, the sturdy reinforced composite rail and floor mounts ensure a stable and solid installation.


  • Keep your dash and windshield clear with this robust seat rail and floor phone mount, suitable for cars, trucks, and other vehicles
  • Ideal solution for mounting your phone, whether for GPS navigation, daily communication, or streaming music
  • Slim-Grip® Ultra Phone holder fits almost any phone from 4.18" up to 7.25" tall
  • Includes eight support legs for different phone sizes and button and port configurations
  • 18" flexible and strong gooseneck arm allows you to easily angle your phone exactly how you want it to stay in place with no wobble
  • 360° swivel operation of this mount so you can position your phone horizontally or vertically
  • Robust reinforced composite Rail and floor mounting brackets for secure fixing to your seat frame or floor

Durable Slim-Grip® Ultra Phone Holder

The Slim-Grip® Ultra phone holder accommodates a variety of phones and midsize tablets ranging from 4.18" to 7.25" in height, including those encased in skins or ruggedized covers. Engineered with a spring-loaded mechanism and reliable grips, complemented by a padded back, it allows effortless one-handed device insertion and removal—just a gentle press on the lower legs of the holder. Constructed with a durable composite build, it ensures the safety and stability of your phone throughout your travels.

Multiple Support Leg Options

Designed for versatility, the phone holder caters to a spectrum of smartphone sizes and setups with eight support legs—four short and four long. This assortment of legs enables tailored support configurations, ensuring access to side buttons and ports.

Flexible and Strong 18" Gooseneck Arm

With its 18" adjustable gooseneck, this Slim-Grip® Ultra 18" Seat Rail or Floor Car Mount delivers stability and flexibility. This unique feature allows you to extend, tilt, and swivel the phone to find the perfect viewing angle, whether on the move or parked. Once positioned, the gooseneck maintains stability thanks to its aluminum construction, securely holding the phone during daily drives and weekend travel. Acting as an ideal driving companion, it keeps your phone accessible and within your line of sight without obstructing your view, allowing you to concentrate on the road ahead.

Rail or Floor Mounting Options

This Slim-Grip® Ultra 18" Seat Rail or Floor Car Mount is designed to keep your dash and windshield clutter-free. Simply attach the mount's reinforced composite bracket to your car's passenger seat rail using a socket wrench. Alternatively, utilize the provided brackets to secure the mount to the vehicle's floor. However, exercise caution to prevent any potential damage to delicate vehicle components. It's advisable to seek guidance from a mobile installation professional before drilling into the vehicle's floor.


  • Design: Slim-Grip® Ultra Phone holder for mounting on your seat rail or floor for cars, trucks, and other vehicles 
  • Model: SM688
  • Device Holder Model: SM060-2 Slim-Grip® Ultra™ Holder
  • Materials: Reinforced composite and aluminum
  • Arm Length: 18" gooseneck
  • Mount Type: Seat rail and floor mounts

Compatible with:

iPhone 15 / 15 Pro / 15 Pro Max, iPhone 14 /14 Pro /14 Pro Max, iPhone 13 / 13 Pro / 13 Pro Max / 12 / 12 Pro / 12 Pro Max / iPhone 11 / 11 Pro / 11 Pro Max / XS / XS Max / XR / X / 8 Plus / 8 / 7 / 7 Plus / 6 Plus / 6; Galaxy S24 Ultra / S24+ / S24 / S23+ / S23 / S22 / S21+ / S21 / S20 Ultra / S20+ / S20 / S10 / S10e / S10+ / S9 / S9+ / S8 / S8+ / S7 / S6, Note 20 Ultra / Note 20 / Note 10+ / Note 10 / Note 9 / Note 8; Google Pixel 8 Pro / 8 / 7 / 6 / 5; LG Nexus 5X / G7 / G6 / G5; Motorola Moto C / Moto E / Moto G 5G and More.