Compare phones
| Global Score | |
| 73.3 | 98.1 |
| Basic Information | |
| Asus | Samsung |
| Android 6.0 Marshmallow | Android 11 |
| 2016-07-12 | 2021-01-29 |
| 7.34 x 3.70 x 0.27 inches | 6.50 x 2.98 x 0.35 inches |
| 8.22 ounces | 8.04 ounces |
| Gold, Gray, Pink and Silver | Phantom black and Silver |
| Aluminum | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| 1920 x 1080 pixels (Full HD) | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 324 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.6 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 652 8976 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A72 and ARM Cortex-A53, 64-bit (Octa-Core 1800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 510 GPU | Adreno 660 GPU |
| 8.91 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 200 GB) external memory slot | No SD card slot |
| 12.86 | 10.1 |
| Camera | |
| 23.00 MP + 8.00 MP | 108.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (24 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (30 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.01 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4600mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.48 | 6.8 |
| Other Features | |
| Bluetooth 4.2, EDR | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra is a lot better than Asus ZenFone 3 Ultra, getting a general score of 98.1 against 73.3. Both devices in this review have Android OS (operating system), but Samsung Galaxy S21 Ultra has an older 11 version while Asus ZenFone 3 Ultra has Android 6.0 Marshmallow version. The Samsung Galaxy S21 Ultra construction is much newer and a little lighter, but also a lot thicker than the Asus ZenFone 3 Ultra.
The Samsung Galaxy S21 Ultra has a bit faster CPU than Asus ZenFone 3 Ultra, and although they both have a Octa-Core processing unit, the Samsung Galaxy S21 Ultra also has 8 GB more RAM. Samsung Galaxy S21 Ultra has a much more vibrant display than Asus ZenFone 3 Ultra, and although they both have a screen of the same size, the Samsung Galaxy S21 Ultra also has a much higher 1440 x 3200 resolution and a lot higher pixels density.
The Galaxy S21 Ultra captures way better photographs and videos than Asus ZenFone 3 Ultra, because it has a bigger diafragm aperture to capture better images in low light situations, a lot better video resolution and a much more mega-pixels back camera. The Asus ZenFone 3 Ultra features a very superior storage to store more apps and games than Galaxy S21 Ultra, and although they both have exactly the same internal storage capacity, the Asus ZenFone 3 Ultra also has a slot for SD memory cards that allows a maximum of 200 GB.
The Samsung Galaxy S21 Ultra has a bit better battery life than Asus ZenFone 3 Ultra, because it has a 5000mAh battery capacity.
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