Design and Build

The Samsung Galaxy A21s is an affordable smartphone that is made of a durable plastic that has four different colors available for consumers with the 8.9mm in thickness and the 192g in weight. These colors are Black, White, Blue, and Red, and they are suitable for the 6.5-inch display that has been optimized for media consumption. Although it doesn't have water and dust resistance, it comes with a rear fingerprint sensor for secure unlocking. Its ergonomic design has been singled out as the most advantageous feature, but it is not considered as premium as the Galaxy A51 model.

• Plastic chassis, 8.9mm thick
• 192g weight
• Rear fingerprint sensor
• Colors: Black, White, Blue, Red

Display

The Galaxy A21s features a 6.5-inch PLS LCD display with a 720 x 1600 resolution, which results in 270 PPI for better readability. Moreover, it boasts a brightness of 400 nits and has a refresh rate of 60Hz, making it suitable for daily activities like surfing and streaming. As it is not protected by Gorilla Glass, it can be more easily scratched. Users think that the display is just enough for budget smartphones, however not as vivid as the AMOLED displays found on the models like Galaxy A51.

• PLS LCD, 720 x 1600, 270 PPI
• ~400 nits brightness
• 60Hz refresh rate
• No Gorilla Glass

Performance and Software

Running Android 10 with One UI 2.0 (upgradable to Android 12), Android-powered Galaxy A21s smartphone offers the Exynos 850 (octa-core, 2.0GHz, 8nm), a 3GB/4GB/6GB starage, and a 32GB/64GB storage that can be expanded via microSD. Samsung Knox for security is integrated into this model. The device's performance is about the same as that of the Galaxy A51 except for some heavy-duty uses. The Geekbench 5 Single-Core score is around 300. The Multi-Core score is 1100.

• Exynos 850, octa-core
• 3GB/4GB/6GB RAM
• Android 10 (up to Android 12)
• Samsung Knox

Battery and Charging

The Galaxy A21s is powered by a massive 5000mAh battery and can last up to 17 hours on video playback and 1.5-2 days on daily use. Its USB-C port supports 15W fast charging, and it can fill up the battery from zero to 100 within 120 minutes. While it does not have wireless charging, it is still a great choice for those who want to use it for a long time. The phone was initially priced at $199.99 in May 2020 (3GB/32GB), and now it can be purchased as a refurbished model at the cost ranging from $80 to $150. This refurbed model will provide cost-conscious consumers with enduring power sources and reliable performance.

• 5000mAh battery
• Up to 17h video playback
• 15W charging, 0–100% in ~120min
• No wireless charging