The Samsung Galaxy A21s has a performance problem
The back of the Samsung Galaxy A21s is a real looker: The rainbow effect, which appears when light hits the back, looks very impressive. The 200-Euro smartphone also has other selling features as we have discovered in our review of the Galaxy A21s.
These are the great battery life, the SoC that does not throttle under load and unusually fast Wi-Fi. The smartphone does feature a famous Samsung OLED screen. However, its display is still pretty bright and colour-accurate. That being said, there are no tools for calibration.
These positive aspects are quickly drowned out by the negatives. Samsung uses its own SoC (Exynos 850), and Samsung processors have not been particularly energy-efficient in the past.
And this is, unfortunately, the case with the Samsung Galaxy A21s: A different SoC would have been able to achieve longer battery runtimes with a 5000-mAh battery, the web pages load so slowly that the fast Wi-Fi speeds make no difference and users will have to wait for a long time for an application to start or a level to load.
This is why the Samsung Galaxy A21s cannot keep up with smartphones from Xiaomi or Huawei that offer a much better price-to-performance ratio. Moreover, the A21s also struggles with geolocation. On the flip side, though, the smartphone can easily be purchased from various online retailers at discounted prices, and if you come across a really good deal, then the Galaxy A21s is definitely worth consideration.
The quad-camera system, whose main lens produces really good photographs, is one of the key selling features. You can find test photographs and more in our comprehensive review of the Samsung Galaxy A21s.