The Samsung Galaxy A21s features a 6.5-inch HD+ Infinity-O display with 720×1600 pixels resolution. The phone is powered by 2GHz octa-core processor. It comes in three variants – 3GB RAM and 32GB of internal storage, 4GB RAM and 64GB of internal storage and 6GB RAM and 64GB of internal storage. There is also a dedicated microSD card slot for up to 512GB for storage expansion.
For the camera, the Samsung Galaxy A21s has a quad-camera setup of a 48-megapixel sensor primary sensor with f/2.0 aperture, an 8-megapixel ultra-wide sensor with f/2.2 aperture, a 2-megapixel macro camera with f/2.4 aperture, and a 2-megapixel depth sensor with f/2.4 aperture. On the front, there is a 13-megapixel selfie shooter with f/2.2 Aperture placed in the hole-punch located in the top left corner of the screen.
The Samsung Galaxy A21s is backed up by a 5,000mAh battery with 15W Fast charging support. On the software front, the Samsung Galaxy A21s runs Android 10-based One UI 2.0 out of the box.
| Type | HD+, Infinity-O AMOLED display |
| Resolution | 720 X 1600 pixels |
| Pixel Density | 264 ppi |
| Screen Size | 6.5 inches |
| Processor | Octa Core 2 GHz, Exynos 850 |
| Operating System | Android 10, Samsung One UI 2.0 |
| RAM | 6 GB |
| Internal Memory | 64 GB |
| Expandable | 512 GB, Micro SD card |
| Rear Camera | 48 MP + 8 MP + 2 MP + 2 MP, Quad Rear Camera: 48MP (f/2.0 primary) + 8MP (f/2.2 ultra-wide) + 2MP ( f/ 2.4 depth) + 2MP (f/2.4 macro) |
| Front Camera | 13 MP, with f/2.2 aperture |
| Image Stablizer | No |
| Flash | Yes, LED flash |
| Video Recording | Yes, 1080p@30fps |
| Design | Bar |
| Size | 163.7 x 75.3 x 8.9mm |
| Weight | 192 grams |
| Capacity | 5000 mAh, with 15W fast charging |
| Type | Non Removable |
| Radio | Yes |
| Media Player | Yes, MP3/WAV/WMA/eAAC+/FLAC |
| Video Player | Yes, MP4/WMV/H.264 |
| Network | 2G |
| GSM/CDMA | GSM |
| Bluetooth | 5.0 |
| WiFi | Yes, Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Internet | EDGE |
| GPS | Yes |
| USB | Type-C |
| HDMI | No |
| Headphone Connector | 3.5 mm |
| SIM | Dual |
| Sensors | |
| Built in Applications | Yes |
| Warrenty | 1 Year |
| Dustproof | No |
| Shockproof | No |
| Water Resistant | No |
| Keypad | Touchscreen, Capacitive Multipoint-Touch |
| Water Proof | No |