Compare phones
| Global Score | |
| 77 | 84.1 |
| Basic Information | |
| HTC | Samsung |
| -- | Android 11, 10 |
| 2017-02-21 | 2020-03-23 |
| 6.39 x 3.14 x 0.31 inches | 6.26 x 2.96 x 0.35 inches |
| 6.00 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| Aluminum and Glass | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 749.00 | -- |
| Display / Screen | |
| 5.7 inches | 6.4 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| S-LCD 5 | Super AMOLED |
| 515 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.5 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro-AB chipset | Exynos 9611 chipset |
| Kryo, 64-bit (Quad-Core 2150 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 530 GPU | Mali-G72 MP3 GPU |
| 8.91 | 9.27 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.66 | 11.74 |
| Camera | |
| 12.00 MP + 16.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.43 inches (1/2.3") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (120 fps) (Full HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 9.9 | 11.55 |
| 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 |
| Nano SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 3000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | 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
The Galaxy M21 has a score of 84.1, which is just a bit better than the HTC U Ultra's overall score of 77. Galaxy M21's construction is noticeably newer than HTC U Ultra's, although it's just a bit heavier and thicker. Samsung Galaxy M21 has just a little better processing power than HTC U Ultra, and although they both have 4 GB of RAM, the Samsung Galaxy M21 also has a greater number of cores.
The HTC U Ultra has a little sharper screen than Galaxy M21, because although it has a bit smaller screen, it also counts with a higher pixel density and a higher 1440 x 2560px resolution. The HTC U Ultra counts with a lot bigger storage to install applications and games than Galaxy M21, and although they both have the same internal storage, the HTC U Ultra also has a slot for SD memory cards that holds a maximum of 1,95 TB.
The Samsung Galaxy M21 features a way better battery duration than HTC U Ultra, because it has a 6000mAh battery size against 3000mAh. Galaxy M21 counts with a much better camera than HTC U Ultra, because although it has a smaller aperture, and they both have the same 3840x2160 video resolution and the same video frame rate, the Galaxy M21 also counts with a camera with much more MP and a bigger back-facing camera sensor.
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