Compare phones
| Global Score | |
| 76.1 | 76.2 |
| Basic Information | |
| Samsung | Asus |
| Android 10 | -- |
| 2020-06-29 | 2017-02-15 |
| 6.61 x 3.02 x 0.32 inches | 6.07 x 3.03 x 0.31 inches |
| 6.81 ounces | 6.00 ounces |
| Black | Black, Pink and Silver |
| Plastic and Plastic | Metal |
| -- | Scratch-Resistant Glass |
| $ 194.00 | -- |
| Display / Screen | |
| 6.5 inches | 5.5 inches |
| 1600 x 720 pixels | 1920 x 1080 pixels (Full HD) |
| IPS LCD | AMOLED |
| 270 pixels per inch | 401 pixels per inch |
| -- | 500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.3 | 8.5 |
| Performance | |
| Mediatek Helio P35 chipset | Qualcomm Snapdragon 625 8953 chipset |
| Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| PowerVR GE8320 GPU | Adreno 506 GPU |
| 9.27 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 1,95 TB) external memory slot |
| 9.84 | 17.06 |
| Camera | |
| 16.00 MP + 13.00 MP | 12.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.70 aperture |
| -- | 25.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 9.35 | 9.68 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 6.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2, EDR |
| GPS | GPS |
| 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
Asus ZenFone 3 Zoom is slightly better than the Samsung Galaxy A21, getting a general score of 76.2 against 76.1. The Asus ZenFone 3 Zoom is an incredibly older phone than the Samsung Galaxy A21, but Asus managed to make it lighter and just a little thinner anyway. The Samsung Galaxy A21 counts with a bit faster CPU than Asus ZenFone 3 Zoom, although it has a lower amount of RAM memory, they both have 8 cores.
Asus ZenFone 3 Zoom features a more vivid screen than Galaxy A21, because although it has a little smaller display, it also counts with a higher pixel number per inch of screen and a better 1080 x 1920px resolution. Asus ZenFone 3 Zoom counts with a very superior memory for apps and games than Galaxy A21, because it has a slot for an external memory card that allows a maximum of 1,95 TB and 128 GB internal storage.
The Asus ZenFone 3 Zoom has superior battery duration than Galaxy A21, because it has a 5000mAh battery size. Asus ZenFone 3 Zoom counts with a little bit better camera than Galaxy A21, because although it has a way less mega-pixels back facing camera, it also counts with a larger camera aperture, a much better video resolution and a larger back-facing camera sensor which provides a better photo and video quality.
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