General Use: For tasks like surfing the internet, checking emails and watching videos, you would do well with an average-sized (22”-24”) monitor. An IPS monitor with FHD resolution would be more than enough, and depending on your budget, you could find plenty of choices for an everyday monitor.
Work/Multimedia Use: For working professional, having an IPS display in great as it is less straining to the eyes when using it for hours. Creative producers would also appreciate the color accuracy from a large-sized (23” and up) IPS monitor.
Gaming Use: For heavy gaming purposes, high refresh rates and short response time should be the priorities to keep up with today’s games. Having a large screen (25” and up) is great, but pay attention for response time of 5ms and lower and refresh rate of at least 72Hz.