Compare phones
| Global Score | |
| 73.8 | 76.1 |
| Basic Information | |
| Asus | Samsung |
| Android 8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow | Android 10 |
| 2016-10-12 | 2020-06-29 |
| 5.96 x 3.02 x 0.31 inches | 6.61 x 3.02 x 0.32 inches |
| 5.29 ounces | 6.81 ounces |
| Gold and Silver | Black |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| Super IPS+ LCD | IPS LCD |
| 401 pixels per inch | 270 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Mediatek Helio P35 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 506 GPU | PowerVR GE8320 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.66 | 9.84 |
| Camera | |
| 16.00 MP + 8.00 MP | 16.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 9.68 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 5.92 |
| Other Features | |
| Bluetooth | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy A21 has an overall score of 76.1, which is a bit better than the Asus ZenFone 3 Deluxe (ZS550KL)'s 73.8 overall score. Samsung Galaxy A21's body is newer than Asus ZenFone 3 Deluxe (ZS550KL)'s, although it's incredibly heavier and just a little bit thicker. Both of these phones include Android operating system, but Samsung Galaxy A21 has an older 10 version while Asus ZenFone 3 Deluxe (ZS550KL) has Android 8.0 Oreo version.
The Samsung Galaxy A21 has a bit better performance than Asus ZenFone 3 Deluxe (ZS550KL), although it has a lower amount of RAM, they both have the same number of cores. Asus ZenFone 3 Deluxe (ZS550KL) features a more vivid display than Galaxy A21, because although it has a quite smaller display, it also counts with a better resolution of 1080 x 1920 pixels and a greater pixel count in each inch in the screen.
Asus ZenFone 3 Deluxe (ZS550KL) counts with a way bigger memory to install games and applications than Galaxy A21, because it has a SD card slot that admits a maximum of 1,95 TB and 64 GB internal storage. The Asus ZenFone 3 Deluxe (ZS550KL) features a little bit better camera than Samsung Galaxy A21, because although it has a tinier diafragm aperture which is worse for low light photography, and they both have a back camera with a 16 megapixels resolution, the Asus ZenFone 3 Deluxe (ZS550KL) also counts with a lot better 3840x2160 video quality.
Galaxy A21 has better battery duration than Asus ZenFone 3 Deluxe (ZS550KL), because it has a 33% larger battery size.
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