Samsung Galaxy A21s has 5000mAh Battery with 15W Fast Charging support which takes around 2 Hour 10 Min to charge fully.
It comes with a 6.5-inch HD+ Display, Exynos 850 processor. In our battery test, we got around 10 hours of battery life. Gaming performance is decent.
To setup a fingerprint scanner go to Settings- Biometrics & Security- fingerprints. you can add up to 3 fingerprints. Fingerprint Scanner works fast.