Compare phones
| Global Score | |
| 76.1 | 84.1 |
| Basic Information | |
| Asus | Samsung |
| Android 14 | Android 11, 10 |
| 2024-03-14 | 2020-03-23 |
| 6.45 x 3.02 x 0.35 inches | 6.26 x 2.96 x 0.35 inches |
| 7.90 ounces | 6.63 ounces |
| Desert Sand, Eternal Black, Misty Grey and Skyline Blue | Midnight blue and Raven black |
| Glass | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.8 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 387 pixels per inch | 403 pixels per inch |
| 2500 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 8 Gen 3 SM8650-AB (4 nm) chipset | Exynos 9611 chipset |
| processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 750 GPU | Mali-G72 MP3 GPU |
| 6.21 | 9.27 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 50.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.64 inches (1/1.56") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 12.54 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 5500mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 7.2 | 7.52 |
| Other Features | |
| Bluetooth 5.4 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 has a global score of 84.1, which is better than Asus Zenfone 11 Ultra's 76.1 overall score. Galaxy M21 is a somewhat lighter cellphone than Asus Zenfone 11 Ultra, but both are 0.35inches thick. Both of these phones have Android OS, but Galaxy M21 has the older 11 version and Asus Zenfone 11 Ultra has Android 14 version.
Galaxy M21 counts with a much more powerful processing unit than Asus Zenfone 11 Ultra, although it has lesser RAM, they both have a Octa-Core processing unit. Asus Zenfone 11 Ultra has a sharper display than Samsung Galaxy M21, because although it has a little bit lower pixels quantity in each display inch, it also counts with a bit larger screen, much more brightness and a slightly higher resolution of 1080 x 2400 pixels.
The Asus Zenfone 11 Ultra features a quite bigger storage for apps and games than Samsung Galaxy M21, because although it has no external memory slot, it also counts with 256 GB internal memory. The Samsung Galaxy M21 counts with a bit better battery life than Asus Zenfone 11 Ultra, because it has a 9 percent greater battery size.
Asus Zenfone 11 Ultra captures just a bit better videos and photos than Samsung Galaxy M21, because it has a larger aperture to capture better captures in low light situations, a much better video definition, a lot larger back camera sensor shooting way higher quality photos and videos and a camera in the back with a higher resolution.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.