Compare phones
| Global Score | |
| 73.8 | 98.1 |
| Basic Information | |
| Asus | Samsung |
| Android 8.0 Oreo, 7.0 Nougat, 6.0 Marshmallow | Android 11 |
| 2016-10-12 | 2021-01-29 |
| 5.96 x 3.02 x 0.31 inches | 6.50 x 2.98 x 0.35 inches |
| 5.29 ounces | 8.04 ounces |
| Gold and Silver | Phantom black and Silver |
| Metal | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 5.5 inches | 6.8 inches |
| 1920 x 1080 pixels (Full HD) | 3200 x 1440 pixels |
| Super IPS+ LCD | Dynamic AMOLED |
| 401 pixels per inch | 516 pixels per inch |
| 600 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.6 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 506 GPU | Adreno 660 GPU |
| 9.09 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | No SD card slot |
| 14.66 | 10.1 |
| Camera | |
| 16.00 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 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.68 | 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 |
| Micro SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 3000mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth | Bluetooth 5.1 |
| GPS | GPS |
| NFC | 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
Samsung Galaxy S21 Ultra has a score of 98.1, which is way better than Asus ZenFone 3 Deluxe (ZS550KL)'s score of 73.8. Both devices in our current comparison work with Android operating system, but the Samsung Galaxy S21 Ultra has 11 version and Asus ZenFone 3 Deluxe (ZS550KL) has Android 8.0 Oreo. The Samsung Galaxy S21 Ultra construction is noticeably newer, but thicker and incredibly heavier than Asus ZenFone 3 Deluxe (ZS550KL).
The Samsung Galaxy S21 Ultra counts with a little bit better performance than Asus ZenFone 3 Deluxe (ZS550KL), and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has 8 GB more RAM. Samsung Galaxy S21 Ultra features a brighter display than Asus ZenFone 3 Deluxe (ZS550KL), because it has a way higher resolution of 1440 x 3200px, much more brightness, a bigger display and a greater pixel count in each inch in the display.
The Samsung Galaxy S21 Ultra captures a lot better pictures and videos than Asus ZenFone 3 Deluxe (ZS550KL), because it has a lot more MP camera in the back, a way higher 7680x4320 video quality and a larger aperture for better photos and videos in low-light environments. Asus ZenFone 3 Deluxe (ZS550KL) has much more memory for applications and games than Galaxy S21 Ultra, because although it has just 64 GB internal memory capacity, it also counts with a SD extension slot that holds up to 1,95 TB.
Galaxy S21 Ultra has a much better battery duration than Asus ZenFone 3 Deluxe (ZS550KL), because it has 5000mAh of battery capacity instead of 3000mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.