You sound like whinning child, learn how to use computers first, I can fix my laptop if it does what you say and it will take me a couple of minutes. What of annoying person you are.

Speaking frankly, this Dell 5510, utilized as my desktop solution, is easily the worst notebook I have ever had - and I've exclusively used notebooks at the office since 2000. The most recent was an Acer, and its performance was nearly flawless, despite demanding work. This Dell 5510 routinely bogs down in even the simplest of operations and, as maddening as it might be - and we're talking 2002 functionality here - it simply shuts off in the middle of operations, as it did just this morning. It then recycles and reboots itself, then asks what happened, like a petulant child. It's slow and ponderous, the camera and audio are frankly awful for the virtual world we've had for the last two years, and I can't wait to age it out and get rid of it.

The most annoying thing, is the keyboard layout. Home and End keys are located far from cursors and joined with F11 and F12. Function keys are accesible only with fn key. It is possible to switch it in BIOS, but then you need fn to access Home, End and PrScr. The only way to use function keys is to disable numeric pad. My previous Lattitude 3540 had much better keyboard layout.

I have this laptop, my favorite ever, though mine has an i7-10610U processor. It's just a solid, sturdy machine with consistent, straightforward performance. No glitches.

The review criticizes the speed of laptop's SSD. That's okay, but to me it's more important that the SSD run cool than at the fastest imaginable speed. My SSD runs cool. In my opinion, it's better than the Samsung.

My laptop differs from the review model in that mine has the optional aluminum palmrest and lid. Recommended.

I know little about Lenovo but have owned two HP Elitebooks. The Elitebooks were good machines but Dell's product is better overall than HP's. In the Latitude lineup, Dell does not inflict extra, ill-designed features on the user as HP sometimes does. Dell does the basics well.

The review notes a screen flicker. Maybe someone has eyes that can detect such a flicker, but mine cannot. The screen is the easiest on the eyes for long periods of any screen I have owned.

Dell's phone support is provided by competent, well-trained, kind, relaxed agents.

The Dell Latitude 5510 is an excellent laptop in my opinion.

Beware of actual Dell models. The support is terrible. We have about 100 DELL XPS and latitude laptops in our company (2018+ models). All have sleep issues. The laptops at price range 2000-3000$ have plenty BSOD while trying to enter sleep mode. The dell support just ignore the problem and are unable to fix it. Just do the google search for yourself. BIOS updates every month with pile of Intel security fixes which already killed CPU performance like by 30%. The CPU in XPS models overheats by poor thermal design so the laptop sounds like turbojet plane.
For anybody from DELL: Fix the sleep problems and abandon forcing modern sleep which does not work at all with DELL.

Before buying a Dell nowadays, be aware of an issue with Dells. I am not able to post a direct link to the dell community forum. So just search for "XPS 15 9570 Sleep Issue is back with Windows 10 2004" thread.

Despite the XPS 15 9570 title I am having that issue on the Dell Latitude 5401.

Specs talk about a 51Wh battery but the maintenance pictures show a 68Wh battery.
Which is it?
Battery runtimes seem like they come from a 68Wh.