One in three people think that a 60Hz refresh rate is good enough for phones and the reason is simple - battery life. However, most of the people who voted in last week's poll are looking to upgrade to a phone with a high refresh rate screen. Most agree that 90Hz should be the minimum for mid-rangers and flagships. However, nearly as many people voted for the 120Hz option. It's more taxing, sure, but it's not unreasonable. The Redmi K30 scored an impressive 101 hour Endurance rating in 120Hz mode, down from 114h in 60Hz mode. And that's with a 4,500mAh battery, which isn't exactly...
Source: https://www.gsmarena.com/weekly_poll_results_phones_with_90hz_and_120hz_screens_will_be_in_high_demand_this_year-news-41411.php