# Which dashboard car mounts have the largest holding capacity for devices? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which dashboard car mounts have the largest holding capacity for devices?

## Products

### Ram Mounts RAM-HOL-UN10-400U Ram Mount Tough-Claw X-Grip Large Phone Cradle (Part Number 66-2)
```yaml
product: ram-mounts-ram-hol-un10-400u-ram-mount-tough-claw-x-grip-large-phone-cradle-part-number-66-2
brand: Ram Mounts
price_gbp: 50.73
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
clamp_size: 0.625 to 1.5 diameter
adjustability: Rotates 360 degrees
max_device_size: 1.75 to 4.5 width
weight_capacity: 0.5 lbs
```

- **Price:** £50.73 [^1]
- **Summary:** RAM-HOL-UN10-400U is a rugged mount that uses the RAM X-Grip cradle to expand and contract for large phones and phablets, with a spring-loaded X design and device tether for outdoor use. It's paired with the Tough-Claw base for tool-less clamping on rails/tubes and provides 360-degree rotation. This suits people mounting large phones to vehicle or equipment rails for use in bumpy or rugged environments.
- **Ideal For:** It has a large phone clamp range (1.75 to 4.5 width) and a Tough-Claw clamp range of 0.625 to 1.5 diameter, which supports higher device holding capacity than smaller X-Grip sizes for dashboard/rail mounting.
- **Additional Sources:** [^2], [^3], [^1], [^2], [^3]

---
## References & Sources
[^1]: AGSGIS, accessed 2026-06-25. https://www.agsgis.com/Ram-Mount--Tough-Claw-X-Grip-Large-Phone-Cradle-_p_94.html
[^2]: Everything Can-Am Offroad, accessed 2026-06-25. https://www.everythingcanamoffroad.com/can-am-x-grip-large-phone-mount-with-ram-snap-link-tough-claw-by-ram-mounts-ram-hol-un10-400u-ecc.html
[^3]: Ram Mounts, accessed 2026-06-25. https://rammount.com/products/ram-hol-un10-400u