Russia vs China: which is bigger?
Russia is bigger: 17,098,246 km² against 9,596,961 km², about 1.78 times the size of China.
Drop Russia onto China →Side by side at true size
Both drawn at the same scale on an equal-area projection.
And on the usual world map
On the usual world map Russia looks 5.5 times bigger, not 1.78: the map inflates Russia about 4.9 times and China 1.59 times.
In numbers
Areas: official totals including inland water (UN Statistics Division via Wikidata). Outlines: Natural Earth. How Globegami works