Samsung Galaxy M21 vs Samsung Galaxy S4 mini
| Type | Touch | Touch |
| Dimensions | 159.00 x 75.10 x 8.90 mm | 124.60 x 61.30 x 8.94 mm |
| Weight | 188.00 g | 107.00 g |
| Display size | 6.40" | 4.30" |
| Display | Color / Super AMOLED 16M colors 1080 x 2340 px (6.40") 403 ppi | Color / Super AMOLED 16M colors 540 x 960 px (4.30") 256 ppi |
| Display protection | ||
| Additional display | ||
| Protection of the secondary display | ||
| Talk time (max.) | 4G: 2940 min. (49.0 h) | |
| Playback time (max.) | Audio: 131 h (5.5 days) Video: 29 h (1.2 days) | nd |
| Internet browsing time (max.) | WiFi: 22 h (0.9 days) 4G: 22 h (0.9 days) | nd |
| Standard battery | Li-Ion 6000 mAhBuy powerbank
| Li-Ion 1900 mAhBuy powerbank
|
| Quick battery charging | Fast Charging | |
| Wireless battery charging | ||
| Internal memory | 64 GB | 8 GB |
| End-user memory | 49.5 GB | |
| RAM memory | 4 GB | 1.5 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 512 GBBuy memory card | microSD, microSDHC, microSDXC up to 64 GBBuy memory card |
| Operating system | Android 10 | Android 4.2.2 Jelly Bean |
| Interface | One UI | - |
| Processor | Samsung Exynos 9611 | Qualcomm Snapdragon 400 8230AB |
| Processor clock | 2300 MHz | 1700 MHz |
| GPU | ARM Mali-G72 MP3 | Adreno 305 |
| Touchscreen | ||
| SAR (10g) | 1,13 W/kg | 0,361 W/kg |
| DualSIM | ||
| SIM cards standard | DualSIM(nanoSIM, nanoSIM) | |
| DualSIM mode | dual standby | nd |
| Hybrid DualSIM | nd | |
| Announced | 1Q 2020 | 2Q 2013 |
| Other names | SM-M215F/DS; SM-M215F/DSN | GT-i9190 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800 TDD LTE: 2600, 2500, 2300 | |
| Standard 5G | ||
| CDMA | ||
| Standard TD-SCDMA | ||
| UMA |

