Samsung Galaxy M21: Specifications and Features Under the hood, the Galaxy M21 has in-house Exynos 9611 chipset, paired with 4GB/6GB of RAM and 64GB/128GB of internal storage. There’s a microSD card slot as well for storage expansion up to 512GB. As for the cameras, the Galaxy M21 features a primary 48MP Samsung ISOCELL GM1 sensor, which works in tandem with an 8MP ultra-wide-angle shooter and a 5MP depth sensor. On the front, Samsung has equipped a 20MP selfie camera. Similar to other devices with a 48MP camera, the Galaxy M21 also has a camera mode which allows users to capture 48MP shots. Connectivity options on the Galaxy M21 include 4G VoLTE, Wi-Fi 802.11 b/g/n, Bluetooth 5.0, GPS and USB Type-C port. The phone runs Android 10-based OneUI 2.0 out of the box, and it is backed by a 6000mAh battery along with 15W fast charging support. Samsung says the Galaxy M21 will deliver up to 49 hours of talk time and up to 22 hours of continuous internet usage (Wi-Fi/LTE). Lastly, the fingerprint scanner is placed on the rear side. Samsung Galaxy M21: Pricing and Availability