| Global Score | |
| 72.8 | 84.1 |
| Basic Information | |
| Sony | Samsung |
| Android 4.4.4 | Android 11, 10 |
| 2013-09-04 | 2020-03-23 |
| 5.74 x 2.91 x 0.34 inches | 6.26 x 2.96 x 0.35 inches |
| 5.71 ounces | 6.63 ounces |
| Black, Purple and White | Midnight blue and Raven black |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 239.00 | -- |
| Display / Screen | |
| 5 inches | 6.4 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 441 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 800 MSM8974 chipset | Exynos 9611 chipset |
| Krait 400 (Quad-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (800 MHz) RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.18 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 7.56 | 11.74 |
| Camera | |
| 20.70 MP + 2.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 8.8 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3000mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 600 hours standby time 15 hours talk time | -- |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Galaxy M21 has a score of 84.1, which is much better than Xperia Z1's 72.8 overall score. Both of these phones include Android OS (operating system), but Galaxy M21 has the previous 11 version and Xperia Z1 has Android 4.4.4 version. Galaxy M21's design is a lot newer, but a little thicker and somewhat heavier than Xperia Z1.
Samsung Galaxy M21 has just a bit better performance than Sony Xperia Z1, because although it has doesn't have an extra GPU, it also counts with more CPU cores and 2 GB more RAM memory. The Sony Xperia Z1 features just a bit better looking display than Samsung Galaxy M21, because although it has a way smaller display and a little lower resolution of 1920 x 1080 pixels, it also counts with a little bit better pixels number per inch of screen.
The Samsung Galaxy M21 counts with a much bigger storage capacity for applications and games than Sony Xperia Z1, because it has 64 GB internal storage capacity and a slot for an SD memory card that holds up to 512 GB. The Galaxy M21 features a much better battery duration than Sony Xperia Z1, because it has a 6000mAh battery capacity.
Samsung Galaxy M21 takes much better videos and photos than Sony Xperia Z1, and although they both have a same size camera aperture, the Samsung Galaxy M21 also has a way better 3840x2160 (4K) video quality, a much better 48 MP resolution camera and a larger sensor shooting better quality videos and photos.
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