UK manufacturer model · 27MR400-B
LG 27MR400-B in the exact manufacturer-listed UK configuration.
Specifications checked 17 Oct 2026.
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Manufacturer specificationsUK manufacturer model · 27MS550-B
LG 27MS550-B in its manufacturer-documented UK configuration. The complete source table retains its published display, connection, software and physical conditions.
Specifications checked 17 Oct 2026.
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Differences first. Select a topic for its graphic, sources and conditions.
Check the exact configuration and source conditions for your use.
Match the monitor to the connection. Refresh limits depend on the input, cable and source device. Confirm the exact regional ports, stand adjustment and mount. Manufacturer response-time methods such as MPRT and GtG are different; neither the image nor these figures establish an independent motion or colour-quality test.
16 verified differences, most decision-relevant first. 7 are also drawn in Visual facts above. Missing information stays separate.
Check the exact configuration and source conditions for your use.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
A size or weight trade-off; it does not establish the better product.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Check the exact configuration and source conditions for your use.
Manufacturer specification · Original manufacturer axes, units and stand/handle basis retained. Packaging dimensions are separate.
LG UK — 27MR400-B specificationsManufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained.
LG 27MS550-B — official UK product specificationsA size or weight trade-off; it does not establish the better product.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
No source recorded for this side.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
29 shared fields have the same recorded value.
| Specification | LG 27MR400-B | LG 27MS550-B |
|---|---|---|
Screen diagonal SourcesLG 27MR400-B Manufacturer specification · Exact manufacturer row: Size [Inch]: 27. No model-number inference or operating-mode conversion. LG UK — 27MR400-B specificationsLG 27MS550-B Manufacturer specification · Actual manufacturer display-table diagonal. Original: 27 LG 27MS550-B — official UK product specifications | 27 in | 27 in |
Native resolution Sources | 1920 x 1080 | 1920 x 1080 |
Panel technology Sources | IPS | IPS |
DISPLAY — Size [cm] Sources | 68.6 | 68.6 |
DISPLAY — Aspect Ratio Sources | 16:9 | 16:9 |
DISPLAY — Pixel Pitch [mm] Sources | 0.3114 x 0.3114 | 0.3114 x 0.3114 |
DISPLAY — Color Gamut (Min.)Different Sources | sRGB 95% (CIE1931) | NTSC 68% (CIE1931) |
DISPLAY — Color Gamut (Typ.)Different Sources | sRGB 99% (CIE1931) | NTSC 72% (CIE1931) |
DISPLAY — Color Depth (Number of Colors) Sources | 16.7M | 16.7M |
DISPLAY — Contrast Ratio (Min.)Different Sources | 1000:1 | 700:1 |
DISPLAY — Contrast Ratio (Typ.)Different Sources | 1300:1 | 1000:1 |
DISPLAY — Viewing Angle (CR≥10) Sources | 178º(R/L), 178º(U/D) | 178º(R/L), 178º(U/D) |
DISPLAY — Brightness (Min.) [cd/m²]Different Sources | 220 | 200 |
DISPLAY — Brightness (Typ.) [cd/m²] Sources | 250 | 250 |
FEATURES — Color Weakness Sources | YES | YES |
FEATURES — Super Resolution+ Sources | YES | YES |
FEATURES — Black Stabiliser Sources | YES | YES |
SW APPLICATION — OnScreen Control (LG Screen Manager) Sources | YES | YES |
DISPLAY — Colour Bit SourcesLG 27MR400-B No source recorded. | Not provided | 8bit (6bit+FRC) |
Manufacturer maximum refresh rate SourcesLG 27MR400-B Manufacturer specification · Exact manufacturer row: Refresh Rate (Max.) [Hz]: 100. No model-number inference or operating-mode conversion. LG UK — 27MR400-B specificationsLG 27MS550-B Manufacturer specification · Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 100 LG 27MS550-B — official UK product specifications | 100 Hz | 100 Hz |
DISPLAY — Response Time Sources | 5ms (GtG at Faster) | 5ms (GtG at Faster) |
FEATURES — AMD FreeSync™ SourcesLG 27MS550-B No source recorded. | FreeSync | Not provided |
FEATURES — Dynamic Action Sync Sources | YES | YES |
Inputs and connectionsDifferent Sources | D-Sub: YES(1ea); D-Sub (Max. Resolution at Hz): 1920 x 1080 at 75Hz; HDMI: YES(2ea); Headphone output: 3-pole (Sound Only) | hdmi: YES(2ea); headphone output: 3-pole (Sound Only) |
FEATURES — Auto Input Switch Sources | YES | YES |
SOUND — Speaker SourcesLG 27MR400-B No source recorded. | Not provided | 2W x 2 |
Manufacturer dimensions and measurement basisDifferent SourcesLG 27MR400-B Manufacturer specification · Original manufacturer axes, units and stand/handle basis retained. Packaging dimensions are separate. LG UK — 27MR400-B specificationsLG 27MS550-B Manufacturer specification · Original manufacturer axes, units and up/down/stand configurations retained. LG 27MS550-B — official UK product specifications | Dimension with Stand (W x H x D) [mm]: 611.7 x 456.1 x 200.0 | dimension with stand (w x h x d) [mm]: 612 x 492.1 x 219.4(UP) |
MECHANICAL — Display Position AdjustmentsDifferent Sources | Tilt | Tilt/Height |
MECHANICAL — Wall Mountable [mm]Different Sources | 100 x 100 | 75 x 75 |
DIMENSIONS/WEIGHTS — Dimension without Stand (W x H x D) [mm]Different Sources | 611.7 x 362.3 x 50.5 | 612 x 362.5 x 56.2 |
DIMENSIONS/WEIGHTS — Dimension in Shiping (W x H x D) [mm]Different Sources | 690 x 448 x 143 | 678 x 450 x 182 |
DIMENSIONS/WEIGHTS — Weight with Stand [kg]Different Sources | 3.84 | 3.9 |
DIMENSIONS/WEIGHTS — Weight without Stand [kg]Different Sources | 3.26 | 3.1 |
DIMENSIONS/WEIGHTS — Weight in Shipping [kg]Different Sources | 5.3 | 5.5 |
FEATURES — Smart Energy Saving Sources | YES | YES |
POWER — Type Sources | External Power(Adapter) | External Power(Adapter) |
POWER — AC Input Sources | 100~240V (50/60Hz) | 100~240V (50/60Hz) |
POWER — Power Consumption (Typ.) SourcesLG 27MS550-B No source recorded. | 24W | Not provided |
POWER — Power Consumption (Max.) SourcesLG 27MS550-B No source recorded. | 26W | Not provided |
POWER — Power Consumption (Sleep Mode) Sources | Less than 0.5W | Less than 0.5W |
POWER — Power Consumption (DC Off) Sources | Less than 0.3W | Less than 0.3W |
POWER — DC OutputDifferent Sources | 32W (19V 1.7A) | 24W(19V,1.3A) |
FEATURES — Flicker Safe Sources | YES | YES |
FEATURES — Reader Mode Sources | YES | YES |
FEATURES — Crosshair SourcesLG 27MR400-B No source recorded. | Not provided | YES |
INFO — Product name Sources | PC Monitor | PC Monitor |
INFO — YearDifferent Sources | Y23 | Y24 |
ACCESSORY — HDMI Sources | YES | YES |
ACCESSORY — Adapter Sources | YES | YES |
ACCESSORY — HDMI (Color/Length) Sources | Black / 1.5m | Black / 1.5m |
ACCESSORY — Power Cord Sources | Depend on Country | Depend on Country |
ACCESSORY — Others (Accessory) SourcesLG 27MR400-B No source recorded. | Not provided | User Screw (6 EA) |
Closest monitors to this pair by shared key specifications. Not a popularity ranking.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.
