RAM Mounts Quick-Grip XL Phone Holder with B Size 1″ ball diamond base
Quick take
The RAM Mounts Quick-Grip XL is a spring-loaded smartphone cradle built for large phones and other devices that must stay put on rough roads. Buyers tend to highlight its solid feel, secure grip, and easy one-handed insertion, plus RAM’s B size 1-inch ball system for flexible positioning. The main caveat is fit, since it only works well for devices that fall within its stated height, width, and depth ranges.
Pros and cons
Pros
- Spring-loaded adjustable side supports help lock in large phones and similarly sized devices for reliable use on bumpy rides
- RAM B size 1-inch ball and socket base supports wide positioning options across RAM mounting arms
- Marine-grade aluminum and high-strength composite construction is designed for demanding environments
- One-handed insert and remove is a common usability highlight
Cons
- Device fit is constrained by the holder’s listed height, width, and maximum depth, so not all “large” phones or cases will work equally well
- Best for RAM systems, since the value increases if you already use RAM double-socket arms or compatible mounts
What buyers think
Buyer-review evidence for this mount is generally consistent, with themes centered on stability and build quality. Shoppers frequently describe the holder as rugged and dependable, emphasizing that the phone stays secure during uneven driving or off-road conditions. Many also mention the adjustability of the side supports as the key to getting a snug fit, along with the convenience of sliding a phone in and out one-handed. Review detail is also fairly strong around versatility, since the RAM ball-and-socket system lets users integrate the cradle into different vehicle or equipment setups.
Buyer-review evidence is comparatively limited on issues like specific failures, long-term wear, or compatibility quirks beyond general fit success for large devices, so the safest purchasing approach is to verify your phone dimensions (and case thickness) against the mount’s listed ranges.
Overview: what the Quick-Grip XL is designed to do
This is a spring-loaded, adjustable cradle that holds large smartphones and similar electronics securely while mounted in a vehicle or powersports setup. It’s built around RAM’s ball-and-socket ecosystem, so you can aim the screen where you want it and reconfigure as your setup changes.
Fit and adjustability (the biggest buying factor)
The Quick-Grip XL is intended for larger devices, supported by spring-loaded side keepers that clamp once the device is seated. The holder’s key dimensions include a height range of 5.75 to 7.25 inches, a width range of 2.625 to 3.625 inches, and a maximum depth of 0.72 inches. If your phone (especially with a thick case or accessories) is near the edges of those ranges, you should expect more careful positioning and snugness checks.
Mounting system: RAM B size 1-inch ball for easy repositioning
The cradle includes a diamond base with a B size 1-inch rubber ball, which connects to any B size RAM double-socket arm. This matters because it turns the Quick-Grip XL from a “fixed position” holder into a system you can adapt. If you already own RAM arms, joints, or vehicle mounts, this cradle is a straightforward way to upgrade your phone/electronics grip without reworking everything.
Build quality and real-world durability considerations
Materials are a standout spec point: the holder uses powder-coated, marine-grade aluminum along with high-strength composite. That combination is meant to handle the kinds of conditions people buy vehicle phone mounts for, including vibration and exposure to the everyday “wear and tear” environment of commuting, trucking, or off-road driving.
Capacity and how to think about safety margins
The mount is rated for standard use up to 2 lb and heavy-duty use up to 1 lb. Phone mounts are easy to underestimate, especially when you add cases, battery packs, or mounts for cables and sensors. If your setup adds weight, treating the 1 lb heavy-duty number as your practical ceiling can help you choose responsibly for harsher conditions.
Pros and cons summary
- Choose it if: you want a rugged spring-loaded cradle for a larger phone, you value one-handed insertion/removal, and you plan to use (or already own) RAM B size mounting components.
- Avoid or double-check fit if: your device, case, or add-ons push beyond the listed height, width, or 0.72-inch maximum depth.
Is it worth it? a practical verdict
The RAM Mounts Quick-Grip XL is worth considering for buyers who prioritize secure grip, adjustability, and a durable build for vibration-heavy driving. It looks especially well-suited for people using large smartphones (or similarly sized GPS and device setups) who want the stability of a clamp-style holder rather than a looser or magnet-only approach. If your main concern is finding a cradle that fits perfectly within the dimension limits, verifying compatibility is the deciding step.
Compare it on criteria that actually matter
If you’re choosing between clamp-style vs. magnet-style mounts
Clamp-style holders like this one typically emphasize side support and physical retention, which can be a better match for off-road or bumpy commute conditions. Magnet mounts may be convenient, but they generally rely on strong surface adhesion and alignment. If your priority is “stays seated while driving,” the Quick-Grip XL’s adjustable side keepers are designed for that goal.
If you’re choosing between basic mounts and a full RAM system
What you get here is both the cradle and a RAM B size ball connection. That can be a big advantage if you expect to reposition the screen often, or if you want to reuse the mounting ecosystem across different bikes, vehicles, or rigs using RAM arms and joints.
Price and availability
Pricing can change, but this model is positioned as a premium, rugged mount compared with generic phone cradles. For the most current cost and stock status, check the latest listing.
FAQs
What phone sizes does the RAM Mounts Quick-Grip XL support?
It’s designed around a listed height range of 5.75 to 7.25 inches, a width range of 2.625 to 3.625 inches, and a maximum device depth of 0.72 inches. To be safe, measure your phone and consider your case thickness before buying.
Will this mount work with any RAM mount arm?
It includes a B size 1-inch ball and connects to B size RAM double-socket arms. If you already use RAM components, make sure your arms/joints are B size compatible.
Is it good for rough roads or off-road use?
The construction is intended for vibration-heavy environments, using marine-grade aluminum and high-strength composite. Buyers commonly describe the cradle as staying secure during uneven driving, but you should still confirm fit within the stated dimensions for your device.
How do you insert and remove the phone?
The holder is spring-loaded and designed for one-handed use, with adjustable side supports that clamp when the phone is seated.
What is the weight capacity?
It’s rated for up to 2 lb for standard use and up to 1 lb for heavy-duty use. If your setup includes extra weight from a bulky case or accessories, consider staying closer to the heavy-duty figure.
Specifications
| Product Title | RAM Mounts Quick-Grip XL Phone Holder with B Size 1″ Ball Diamond Base, Universal Large Smartphone Cradle for RAM Mount Systems RAM-HOL-PD4-238AU |
|---|---|
| Category | Automotive > Motorcycle & Powersports > Accessories > Electronics > Electrical Device Mounts |
| Brand | RAM MOUNTS |
| Manufacturer | RAM MOUNTS |
| Model Name | RAM MOUNTS 71-7153 |
| Model Number | 71-7153 |
| Color | Black |
| Item Weight | 5.76 ounces |
| Compatible Devices | Smartphones |
| Compatible Phone Models | Apple iPhone 17, 16, 15, 14, 13, 12 Series (including Air, Plus, Pro, Pro Max, mini, 16e), iPhone 11 Pro Max, XS Max, 8 Plus, 7 Plus, 6s Plus; Samsung Galaxy S26, S25, S24, S23, S22, S21 Series (including Plus, Ultra, 5G), S10 5G, S8 Active, Note 20 Ultra, Note 10 Plus, Note 5, A90 5G, A80, A70, J7 (V/Max), On7, Grand Neo Plus, E7, C9 Pro, C7 Pro, C7; Google Pixel 7 Pro, 3a XL, 3 XL, 2 XL; Motorola Moto Z3, Z2, G4, E4 Plus; Garmin DriveTrack 71, DriveSmart 61 LMT-S, DriveSmart 51 LMT-S, Drive 61 LM, Drive 52, Drive 51 LM, Drive 50; and more devices with similar sizes. |
| Mounting Type | Vehichle Mount |
| Additional Features | Assembly Hardware Included, Warning: Exposure to vibrations, like those generated by high-powered motorcycle engines, might impact iPhone cameras. |
| Weight Capacity Maximum | 2 Pounds |
| Water Resistance Level | Water Resistant |
| Compatible with Vehicle Type | Automobile |
| Item Dimensions | 5 x 5 x 5 inches |
| Shape | Rectangular |
| Enclosure Material | Aluminum |
| UPC | 793442008535 |
| Mfr Part Number | 71-7153 |
| Warranty Description | Manufacturer |
| Built-In Media | Assembly Hardware |
| Item Type Name | Vehicle Mounts |
Available variants
Style
- Large Phones
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