Dell Precision 3551 is €75 cheaper today, 30% below the other.
Over the 29 days of the last 90 both were for sale, the Dell Precision 3551 was the cheaper one on 26 of 29 days, by €27 to €72, a gap wide enough to decide on by itself.
All three differ: Linux support, RAM and the screen.
Price history: the lowest price we saw each week
- Dell Precision 3551€169 now
- HP ZBook Firefly€241 now
Week of 5 October 2026
- Dell Precision 3551Online Used Laptops
- €169
- HP ZBook FireflyOnline Used Laptops
- €241
Every week, as a table
| Week | Dell Precision 3551 | HP ZBook Firefly |
|---|---|---|
| 7 September 2026 | €181 | €228 |
| 14 September 2026 | €169 | €228 |
| 21 September 2026 | €169 | €241 |
| 28 September 2026 | €169 | €241 |
| 5 October 2026 | €169 | €241 |
What differs between them
No shop states these. We looked them up ourselves, and we say when.
| Fact | Dell Precision 3551 | HP ZBook Firefly |
|---|---|---|
| Linux support | Linux runs on this laptop. “System Ubuntu 20.04”linux-hardware.org, checked 6 September 2026. | Linux runs on this laptop, with something not working. “I got a HP ZBook Firefly from my customer that I'm supposed to install UBUNTU on. It installed without a hitch, but when restarting after the instal (where desktop sound and everything has been working) i get greeted with a black screen.”h30434.www3.hp.com, checked 12 September 2026. |
| Soldered RAM | The RAM can be upgraded. “Two-SODIMM slots”dell.com, checked 6 September 2026. | The RAM is soldered and cannot be upgraded. “Note: The memory is soldered and not user-upgradable.”laptopmedia.com, checked 12 September 2026. |
| Screen quality | Reviewers rate this screen poorly. “other characteristics like brightness, response times, and colors are average at best to represent a budget display.”notebookcheck.net, checked 6 September 2026. | Reviewers rate this screen well. “The 1200p IPS display (BOE0C31) is suitable for work. The PWM-free unit offers wide viewing angles and 327 nits of max brightness.”laptopmedia.com, checked 12 September 2026. |
Dell Precision 3551 and HP ZBook FireflyDell Precision 3551 and HP ZBook Firefly each have a page of their own.