That's one site and usage is extremely subjective. A lot of the phones they show are unique models that either have like 5000mah batteries or are basically not even sold in most countries.
Now this top video on youtube compares the top mainstream handsets on the market. Iphone X actualy had the qworst battery life.
[doublepost=1538057143][/doublepost]Also guaranteed that a lot of these so-called issues are being peddled by Android trolls or just people who are OCD. We see it every single year, with every apple product launch.
99% of people don't buy iPhones because of a single speedtest. If they did, iPhone sales wouldn't lead for a decade straight. It's the epitome of Asian manufacturers, they waste their time copying and cheating instead of focusing on the huge shortfalls of their devices. Like non-existent support and software updates.