>>105836847
>Is one better than the other?
KTC H24T09P is a 1080p monitor with an IPS panel, it has good colors, wide viewing angles, and fast response times (less smeary).
The M27T6 is a 1440p monitor with a VA panel & mini LED backlight that boosts brightness & contrast. This monitors better for HDR gaming & content consumption.
But VA panels have slower response times than IPS and even the faster VA monitors have a bit of black smearing.

Make sure you search the specific model names, I don't see the M27T6 being available in UK yet.