Performance
Automatic brightness adjustment
Dell U4025QW
3.4
Ambient-light adaptation is convenient and may ease eye strain, but some users turn it off because it dims the screen more than they like.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Display-mode switching reliability
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
2.0
Picture-by-picture is useful, but source and display-mode changes can be slow or finicky, particularly with more complex connections.
DisplayPort connectivity
Dell U4025QW
5.0
A tested DisplayPort connection started promptly and ran at the expected high refresh rate without flicker.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Display Stream Compression clarity
Dell U4025QW
5.0
At full resolution and refresh rate, the compression needed to carry the signal produced no visible artifacts during the long-term owner's use.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
KVM switch performance
Dell U4025QW
5.0
Sharing a keyboard and mouse across multiple connected computers is a meaningful strength, especially for complicated desk setups.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Local dimming performance
Dell U4025QW
1.7
Without fine-grained backlight zones, illuminated areas lift surrounding blacks and weaken HDR contrast.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
On-screen display usability
Dell U4025QW
4.8
Joystick navigation and clearly arranged menus make it straightforward to find inputs, color modes, and multi-screen features.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Other features
Blooming control
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
5.0
Bright subjects against dark backgrounds stay clean without the distracting blooming sometimes seen on backlit panels.
Built-in RGB lighting
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
3.0
There is no rear RGB show, which can be a welcome absence for buyers who prefer an understated desk.
Burn-in protection
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
3.6
Pixel shifting, logo dimming and warranty coverage provide some reassurance, but persistent static content still creates an OLED upkeep concern.
Cable management
Dell U4025QW
4.7
The built-in hub, retractable front ports, and stand pass-through can simplify a desk, though the number of rear connections can still make cable routing awkward.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Console gaming compatibility
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
4.0
HDMI connections can accommodate a console alongside a PC, although the limited number of inputs reduces flexibility.
Environmental sustainability
Dell U4025QW
5.0
Recycled materials add appeal for buyers who value a less wasteful construction, alongside the monitor's functional strengths.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Ethernet network sharing
Dell U4025QW
4.8
The built-in 2.5Gb Ethernet jack is valued for giving connected laptops wired networking without a separate adapter.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Ghosting control
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
5.0
The OLED pixel response keeps moving objects exceptionally clean, with little visible blur or ghosting.
Heat management
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
4.0
Thermal brightness management is presented as a useful safeguard for keeping the large OLED panel comfortable and protected.
Input lag
Dell U4025QW
4.8
Several testers report low perceived delay at 120Hz, helping desktop interaction and casual gaming despite slower pixel transitions.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Integrated power supply
Dell U4025QW
5.0
A built-in power supply eliminates the bulky external brick and makes the desk feel tidier.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Monitor daisy-chaining
Dell U4025QW
4.7
Connecting a second display through the downstream Thunderbolt connection can simplify expansion and reduce cabling back to the computer.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Overdrive tuning
Dell U4025QW
5.0
Fast overdrive and stable high frame rates can help conceal blur, although the underlying panel cannot match top gaming screens.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Packaging quality and presentation
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
5.0
Thick protective packaging is reassuring for such a large and delicate display.
Panel quality control
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
1.0
Concerns about cracks and possible pixel issues make return policies and inspection especially important at this price.
PC gaming compatibility
Dell U4025QW
4.5
Connected gaming PCs can benefit from the high resolution and refresh rate, but truly fast play is not its primary strength.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Photo editing
Dell U4025QW
5.0
A large accurate screen leaves room for images and editing tools at once, especially for photography headed to digital screens.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Power-on readiness
Dell U4025QW
5.0
One owner reports a quick one-to-two-second wake-up, keeping laptop desk use responsive.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Power efficiency
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
2.0
Bright scenes can draw substantial power from the expansive OLED panel, adding a small running-cost consideration.
Screen uniformity
Dell U4025QW
3.0
Most units look reasonably even for a large panel, yet some show darker edges, corner variation, or dirty-screen effects; uniformity compensation trades off some contrast.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Shadow detail
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
5.0
Dark environments retain strong visual depth and useful shadow definition without washing the scene out.
Sleep and wake behavior
Dell U4025QW
2.0
A Mac owner finds monitor sleep and wake inconsistent, occasionally requiring time or a laptop-lid adjustment.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Stand stability
Dell U4025QW
3.4
Reports split between solid day-to-day support and noticeable wobble or creaking when adjusting or touching the screen.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Thunderbolt accessory transfer speed
Dell U4025QW
2.5
Thunderbolt docking is broadly capable, but some owners encounter reduced accessory throughput versus a dedicated full-speed dock.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Thunderbolt docking connectivity
Dell U4025QW
4.9
The Thunderbolt 4 hub is a principal reason to buy, collapsing a complex laptop workstation into the monitor itself.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
USB hub functionality
Dell U4025QW
5.0
The integrated hub supplies more useful USB connections than typical work monitors, reducing the need for separate accessories.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
USB port accessibility
Dell U4025QW
4.9
A concealed pop-out front bay makes it easy to attach temporary drives, accessories, and charging cables while keeping the desk clean.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Viewing angles
Dell U4025QW
5.0
Its IPS-style wide viewing angles keep images fairly consistent when seen from off-center positions.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
VRR compatibility
Dell U4025QW
4.7
FreeSync/G-Sync-style variable refresh operation has worked well in several setups, reducing tearing for casual gaming.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Tracking and training
Gamma tracking
Dell U4025QW
5.0
The default gamma curve was on target, keeping everyday tones natural without elaborate setup.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
Ownership and support
HDMI 2.1 support
Dell U4025QW
4.0
HDMI 2.1 is a welcome part of the unusually flexible input selection, especially beside the Dell's Thunderbolt and DisplayPort connections.
Samsung Odyssey OLED G91SD S49DG910SNo score yet
PC signal connection reliability
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
1.0
Some multi-device cable arrangements reportedly struggle to maintain the intended resolution and refresh rate together.
Warranty and support service
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
3.4
Burn-in coverage and warranty options sound reassuring, but reports of disputed panel-damage claims complicate the ownership picture.
Controls and connectivity
PC-based monitor controls
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
5.0
Samsung Display Manager makes the many image and split-screen settings easier to handle than navigating the on-screen menu alone.
Smart TV platform
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
1.0
Without integrated Tizen apps, this version depends on an attached device for streaming services.
Comfort and build
Screen bezel design
Dell U4025QWNo score yet
Samsung Odyssey OLED G91SD S49DG910S
3.0
The edge bezels look slim, but the bottom border is somewhat thicker than one owner would prefer.