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Philips Momentum 558M1RY 55in 4K/120Hz Monitor Review

Rating: 8.0.

There's no escaping the fact that Philips' Momentum 558M1RY is a monster of a monitor. We're not just talking about its huge 55in panel, though that is of course very hard to miss, as this screen also boasts a number of highly impressive features – including 4K/120Hz support, DisplayHDR 1000 certification, and a built-in soundbar from Bowers & Wilkins. Priced at £1199 here in the UK, is this as good as it sounds?

To get one thing out of the way – the Philips Momentum 558M1RY is a monitor and not a TV, though it just happens to be massive and aimed at console gamers, so this is very likely to end up in your living room and not in an office. Sporting a VA LCD panel, with a claimed 4m G2G response time, Philips is aiming the 558M1RY at those who would typically game on a TV, but want something faster thanks to the 120Hz refresh rate and claimed 1.5ms input latency when using DisplayPort.

Add in other features such as AMD FreeSync Premium Pro and Philips Ambiglow LED technology, the 558M1RY is certainly ticking all the boxes on paper. But how does it fare in the real world? Let's find out.


  • LCD panel type: VA LCD
  • Backlight type: W-LED system
  • Panel Size: 55 inch/139.7 cm
  • Colour gamut (min.): DCI-P3 Coverage: 95%*
  • Colour gamut (typical): NTSC 104%*, sRGB 125%*
  • HDR: DisplayHDR 1000 certified
  • Effective viewing area: 1209.6 (H) x 680.4 (V) mm
  • Aspect ratio: 16:9
  • Optimum resolution: HDMI: 3840 x 2160 @ 60 Hz, 2560 x 1440 @ 120 Hz; DP: 3840 x 2160 @ 120 Hz
  • Pixel Density: 80 PPI
  • Response time (typical): 4 ms (Grey to Grey)
  • Low Input Lag: Yes
  • Brightness: Normal Mode: 750 cd/m2; HDR Mode: 1200 cd/m²
  • SmartContrast: Mega Infinity DCR
  • Contrast ratio (typical): 4000:1
  • Pixel pitch: 0.315 x 0.315 mm
  • Viewing angle: 178º (H)/178º (V), @ C/R > 10
  • Picture enhancement: SmartImage game
  • Display colours: Colour support 1.07 billion colours
  • Scanning Frequency: HDMI: 30–160 kHz (H)/40–60 Hz (V); DP: 30–270 kHz (H)/48–120 Hz (V)
  • SmartUniformity: 95 ~ 103%
  • Delta E: < 2 (sRGB)
  • sRGB: Yes
  • Flicker-free: Yes
  • LowBlue Mode:  Yes
  • Ambiglow: 3 sided
  • AMD FreeSync™ technology: Premium Pro

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