SMALLRIG Mini Shock Absorber Arm 4-inch Vacuum Suction Cup (5123) for DJI Osmo Pocket 4/3, GoPro HERO13 & Insta360 X4

The essentials

If you film from a moving car, on bumpy roads, or simply want your footage to feel less jittery, a shock-absorbing mount can make a noticeable difference. The SMALLRIG Mini Shock Absorber Arm pairs a 4-inch vacuum suction cup with a double shock absorption setup (a rebound spring plus hydraulic damping). On paper, that’s aimed squarely at reducing vertical vibration when your camera is vehicle-mounted.

It’s the kind of accessory that doesn’t transform a camera’s image quality, but it can improve stability and “comfort” for viewers—especially for driving shots, ride-alongs, or anything where the camera moves up and down.

What you’ll notice in use

This arm is built around a hydraulic damping system combined with a spring for rebound. The listed shock absorption range is up to 80 degrees, described as double compared with others. Realistically, that suggests it’s trying to give you more movement coverage than simpler shock mounts, which can be helpful when the car suspension (and therefore camera position) changes more than expected.

There’s also a damping adjustment knob. That matters because different scenes and surfaces don’t all behave the same way. For a smoother route you may not need as much damping, for rougher roads you’ll likely want to dial it up a bit.

A quick micro-scenario: imagine you’ve attached the suction cup to a clean, smooth car window, set the damping level, and start recording as you pull away from a junction. The goal here is that the camera doesn’t bounce quite as sharply when the car hits small bumps.

Vacuum suction cup: the practical angle

The 4-inch vacuum suction cup is designed to strongly adhere to smooth surfaces, with a stated load capacity of up to 600g. It’s also supplied with a dust cover to protect the cup from dust and scratches, which is a small detail but one that can extend how reliable the seal feels over time.

Worth noting: suction mounts depend a lot on the surface being truly smooth and clean, and on conditions like temperature and dust. If you’re mounting on a surface that’s not ideal, the theoretical holding strength won’t automatically translate into real-world confidence.

Compatibility and how expansion works

Compatibility is listed for: - DJI Osmo Pocket 4/3 - GoPro HERO13/12/11/10/9 - Insta360 X4/X3 - Other action cameras with 1/4-inch-20 threaded holes

The system is also described as expandable with adapters, which is useful if your kit evolves or if you plan multi-scene creation (for example, swapping between vehicle mounting and other setups). Depending on your specific camera, you’ll still want to double-check that you can secure it via the provided mounting plate/adapters and thread type.

Size of the kit and what’s included

For a mount, it’s relatively “grab-and-go” because it comes with a hard storage bag and the package is designed to store the suction cup, shock absorber arm and accessories together. The box contents include the shock absorber arm, suction cup, dust cover, extension arm, adapter, mounting plate, counterweight, hexagonal wrench, and the storage bag.

That’s helpful if you often film outdoors or you don’t want to carry a handful of loose parts.

Key limitations to consider

This is a dedicated car/camcorder-style stabilisation accessory, not a universal gimbal solution. If you’re expecting it to solve all motion issues (for example, fast turns, heavy vibration, or handheld-style shake), it may feel like it’s only tackling part of the problem.

Also, while the damping adjustment knob helps you tune the setup for different scenes, getting the best results still depends on proper positioning and a secure suction seal. If you’re mounting on questionable surfaces, you may be disappointed.

Is it worth it?

It’s a solid pick if you regularly mount your camera in a vehicle and you’re specifically trying to reduce vertical bounce, with an extra-focused shock absorption range and damping adjustment to suit different road conditions.

You may want to skip it if you mostly shoot on very smooth motion, don’t use vehicle mounting often, or you’re after a full “hands-free stabilisation” solution rather than a vibration-focused arm.

It suits buyers who care about steady driving footage and want a more considered mount than basic suction options. If you do that kind of shooting and you can ensure the suction surface is clean and smooth, this can be a practical add-on worth considering.

Quick FAQ

How does the double shock absorption work?

It uses a rebound spring alongside hydraulic damping, aiming to reduce vertical vibration during vehicle-mounted shooting.

Do I need to adjust the damping?

A damping adjustment knob is included, so it’s there for tailoring the effect to different scenes. If you don’t change scenes much, you might set it once and leave it.

What cameras is it compatible with?

It’s listed for DJI Osmo Pocket 4/3, GoPro HERO13/12/11/10/9, Insta360 X4/X3, and other action cameras with 1/4-inch-20 threaded holes.

Is the suction cup strong enough for heavier cameras?

The suction cup is stated to bear up to 600g on smooth surfaces. However, suction performance still depends on real mounting conditions and surface cleanliness.

What’s included in the box?

You get the shock absorber arm, suction cup, suction cup dust cover, extension arm, adapter, mounting plate, counterweight, hexagonal wrench, and a storage bag.