Compare phones
| Global Score | |
| 75 | 84.1 |
| Basic Information | |
| HTC | Samsung |
| -- | Android 11, 10 |
| 2016-11-11 | 2020-03-23 |
| 6.06 x 3.04 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.14 ounces | 6.63 ounces |
| 16 777 216 | Midnight blue and Raven black |
| Aluminum | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 2560 x 1440 pixels (Quad HD / 2K) | 2340 x 1080 pixels |
| S-LCD 3 | Super AMOLED |
| 534 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.7 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 810 MSM8994 chipset | Exynos 9611 chipset |
| ARM Cortex-A57 and ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 430 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 1,95 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 12.76 | 11.74 |
| Camera | |
| 16.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 28.00mm focal length | 26.00mm focal length |
| -- | 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 |
| 9.79 | 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 | |
| 3200mAh Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.2 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | 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 global score of 84.1, which is better than the HTC Bolt's general score of 75. Galaxy M21's construction is way newer than HTC Bolt's, but it's just a bit heavier and just a bit thicker. The HTC Bolt counts with a slightly better display than Galaxy M21, because although it has a little bit smaller screen, it also counts with a higher resolution of 1440 x 2560 pixels and more pixels per inch of screen.
The HTC Bolt counts with a little bit better memory capacity for applications and games than Samsung Galaxy M21, because although it has less internal memory, it also counts with an external memory slot that admits up to 1,95 TB. Galaxy M21 features a little bit better performance than HTC Bolt, and although they both have a Octa-Core CPU, the Galaxy M21 also has 1 GB more RAM memory.
Galaxy M21 captures better videos and photos than HTC Bolt, and although they both have a same size aperture, the same 30 frames per second video frame rate and the same (4K) video definition, the Galaxy M21 also has a camera in the back with much more megapixels. Samsung Galaxy M21 counts with a much longer battery life than HTC Bolt, because it has an 88% larger battery size.
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