Compare phones
| Global Score | |
| 72.1 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 7.0 Nougat | Android 10 |
| 2017-11-08 | 2020-06-29 |
| 6.02 x 3.00 x 0.30 inches | 6.61 x 3.02 x 0.32 inches |
| 5.40 ounces | 6.81 ounces |
| 16 777 216 | Black |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| $ 170.00 | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1280 x 720 pixels (HD) | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 267 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 435 8940 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit, 28 nm (Octa-Core 1400 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 505 GPU | PowerVR GE8320 GPU |
| 8.64 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 9.84 |
| Camera | |
| 13.00 MP + 16.00 MP | 16.00 MP + 13.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.91 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3080mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A21 has a global score of 76.1, which is just a bit better than the Xiaomi Redmi Y1's global score of 72.1. Both of these devices work with Android OS, but the Galaxy A21 has the older 10 version and Xiaomi Redmi Y1 has Android 7.0 Nougat version. The Galaxy A21 design is way newer than Xiaomi Redmi Y1's, although it's a bit thicker and much heavier.
Samsung Galaxy A21 features a bit better processing unit than Xiaomi Redmi Y1, although it has lesser RAM, they both have a Octa-Core processor. The Samsung Galaxy A21 features a bit sharper display than Xiaomi Redmi Y1, because it has a little better pixels quantity per screen inch, a bigger display and a slightly better resolution of 720 x 1600px.
Xiaomi Redmi Y1 has a bit more memory capacity for games and applications than Galaxy A21, because although it has a slot for an SD memory card that supports a maximum of 128 GB against 512 GB, it also counts with 64 GB internal storage capacity. The Galaxy A21 captures slightly better photographs and videos than Xiaomi Redmi Y1, and although they both have the same video frame rates and the same 1920x1080 video resolution, the Galaxy A21 also has a larger diafragm aperture for better photos and video in poorly lited situations and a more MP back-facing camera.
The Galaxy A21 has superior battery performance than Xiaomi Redmi Y1, because it has a 4000mAh battery capacity.
The Galaxy A21 is a little more expensive than Xiaomi Redmi Y1, but you can get a better phone for that few extra dollars.
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