Compare phones
| Global Score | |
| 60.8 | 76.1 |
| Basic Information | |
| Microsoft | Samsung |
| Windows 10 Mobile | Android 10 |
| 2015-10-06 | 2020-06-29 |
| 5.36 x 2.67 x 0.39 inches | 6.61 x 3.02 x 0.32 inches |
| 5.01 ounces | 6.81 ounces |
| Black and White | Black |
| Plastic | Plastic and Plastic |
| $ 185.00 | $ 194.00 |
| Display / Screen | |
| 4.7 inches | 6.5 inches |
| 720 x 1280 pixels (HD) | 1600 x 720 pixels |
| LCD | IPS LCD |
| 312 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 8.2 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 210 8909 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A7 (Single-Core 1100 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 1 GB RAM | 3 GB RAM |
| Adreno 304 GPU | PowerVR GE8320 GPU |
| 7.56 | 9.27 |
| Storage | |
| 8 GB internal memory | 32 GB internal memory |
| microSD, microSDHC, microSDXC (up to 200 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.06 | 9.84 |
| Camera | |
| 5.00 MP + 2.00 MP | 16.00 MP + 13.00 MP |
| f/2.40 aperture | f/1.80 aperture |
| 28.00mm focal length | -- |
| 0.25 inches (1/4") sensor | 0.33 inches (1/3.06") sensor |
| 1280 x 720 (30 fps) (HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 7.7 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 7 | 6.7 |
| Battery Life | |
| 2100mAh Battery | 4000mAh Li - Polymer Battery |
| Removable Battery | Non-Removable Battery |
| 672 hours standby time 16 hours talk time | -- |
| 4 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A21 has a global score of 76.1, which is a lot better than Lumia 550's score of 60.8. Galaxy A21 counts with Android 10 operating system, and Lumia 550 works with Windows 10 Mobile operating system. Galaxy A21 is a a lot newer and thinner phone than Lumia 550, but it is also heavier. Lumia 550 features a better screen than Galaxy A21, because although it has a way smaller display and a bit worse 1280 x 720 resolution, it also counts with a just a bit greater display pixels density.
Galaxy A21 features a way bigger memory capacity to store more apps and games than Lumia 550, because it has a slot for SD memory cards that allows a maximum of 512 GB and 24 GB more internal memory. Samsung Galaxy A21 counts with a much better performance than Lumia 550, because it has more cpu cores and a greater amount of RAM.
The Galaxy A21 takes a lot better videos and photos than Lumia 550, because it has a camera in the back with a lot better 16 MP resolution, a much bigger camera sensor which offers a much higher photo and video quality, a lot larger camera aperture for better photos and video in poorly lited situations and a lot better 1920x1080 video definition.
Samsung Galaxy A21 has a much better battery life than Microsoft Lumia 550, because it has a 90% larger battery size.
The Galaxy A21 is a bit more expensive than Lumia 550, but you can get a much better phone for that extra money.
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