| Global Score | |
| 91.8 | 77.7 |
| Basic Information | |
| Samsung | HTC |
| Android 11 | Android 5.0 |
| 2021-01-29 | 2015-03-01 |
| 5.97 x 2.80 x 0.31 inches | 5.69 x 2.74 x 0.38 inches |
| 6.03 ounces | 5.54 ounces |
| Gray, Phantom pink, Violet and White | Black, Gold, Gray and Pink |
| Aluminum and Plastic | Aluminium |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | $ 178.00 |
| Display / Screen | |
| 6.2 inches | 5 inches |
| 2400 x 1080 pixels | 1080 x 1920 pixels (Full HD) |
| Dynamic AMOLED | S-LCD 3 |
| 424 pixels per inch | 441 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | Capacitive, Multi-touch |
| 9.2 | 9.3 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 810 MSM8994 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | 64-bit ARM Cortex-A57 (Quad-Core 2000 MHz + Quad-Core 1500 MHz) processor |
| 8 GB RAM | 3 GB (800 MHz) RAM |
| Adreno 660 GPU | Adreno 430 (600 MHz) GPU |
| 9.63 | 9.99 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSD, microSDHC, microSDXC (up to 128 GB) external memory slot |
| 10.1 | 8.12 |
| Camera | |
| 12.00 MP + 10.00 MP | 20.00 MP + 4.00 MP |
| f/1.80 aperture | f/2.20 aperture |
| 26.00mm focal length | 27.80mm focal length |
| 0.57 inches (1/1.76") sensor | 0.42 inches (1/2.4") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 10.78 | 10.12 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA, HSUPA, EDGE, GPRS and GSM |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 2840mAh Li-Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| -- | 391 hours standby time 25.4 hours talk time |
| 5.92 | 4.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.1 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | -- |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
The Galaxy S21 has a general score of 91.8, which is better than HTC One M9's 77.7 overall score. Both of these phones come with Android OS, but Galaxy S21 has 11 version and HTC One M9 has Android 5.0 version, so it counts with some nice extra features and performance improvements. Galaxy S21's design is noticeably newer and somewhat thinner than the HTC One M9's, although it's also just a little heavier.
HTC One M9 counts with a little sharper screen than Galaxy S21, because although it has a bit lower resolution of 1920 x 1080 and a little smaller display, it also counts with a just a little higher screen pixel density. HTC One M9 counts with just a little better processing power than Samsung Galaxy S21, because although it has a lower amount of RAM, and they both have a Octa-Core processor, the HTC One M9 also counts with a graphics processing unit and a 64 bits processor.
The Galaxy S21 has a slightly better camera than HTC One M9, because although it has a back facing camera with a way worse 12 mega pixels resolution, it also counts with a lot bigger back camera sensor capturing more light and vivid colors, a much higher video resolution and a larger aperture. Samsung Galaxy S21 features a lot bigger memory to install games and applications than HTC One M9, because although it has no slot for an external memory card, it also counts with 96 GB more internal memory capacity.
The Samsung Galaxy S21 features a much longer battery performance than HTC One M9, because it has 4000mAh of battery capacity against 2840mAh.
Although Galaxy S21 is a better device, it is a lot more expensive than the HTC One M9, and it doesn't have such a good quality/price relation as HTC One M9. If you are trying to save some money, you can buy the HTC One M9, giving up a few specs and features, but you'll get the most out of your budget.
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