Oh sorry bro. I don't play mobile game. Haha. After using it for 2 days, the battery learning pattern is still running. But so far I can tell the followings (compared to my ex S20+).
1. Battery life is great! Especially browsing internet (wifi)
Both in Fhd + 120hz
S20+ : 6-7 min drained 1%
S21+: 14-15 min drained 1%
2. Standby drain excellent! No more battery life leakage!
S20+ : 8 hours drained 3-4 % (wifi on)
S21+ : 8 hours drained 1-2 % (wifi on)
3. Stay at 100% for longer time (battery percentage calculation more accurate)
S20+: dropped to 99% in 15-20 min after full charged.
S21+: dropped to 99% in 8 hours after full charged.
4. Signal reception great. Especially wifi reception. (4G not tested yet due to MCO 2.0)
S20+ : 2-3 bars at the same spot
S21+ : 3-4 bars at the same spot
5. App installation. S21+ is faster than S20+. The difference is significant.
Summary: Exynos 2100 is far more superior compared to Exynos 990. No doubt about that! As for gaming, I can't tell you how it performs. But for battery life, I can assure you that this S21+ is a beast!
What is the temperature experience? Do you feel warm when using this? What is the number of temp in degree celcius?
I use my n20u, average 35-38 (battery temp) ... feel warm most of the time. If playing game, even hot can go up to 40 deg.