while watching video, it won't lag but while scrolling or switching apps you'll notice. 4k videos won't work properly.if you get s9 fe plus under 25k then it's a good buy. but it doesn't deserve price more than that.
I have S9 fe plus. bought from flipkart at 20k rupees. I liked everything about this tablet except Processor. it's very laggy. Processor has handicapped this device.if you are okay with being laggy then fine go ahead.otherwise I'd suggest maybe lenov...