Compare phones
| Global Score | |
| 72.1 | 84.1 |
| Basic Information | |
| Alcatel | Samsung |
| Windows 10 Mobile | Android 11, 10 |
| 2016-11-10 | 2020-03-23 |
| 6.05 x 2.97 x 0.28 inches | 6.26 x 2.96 x 0.35 inches |
| 5.36 ounces | 6.63 ounces |
| Black | Midnight blue and Raven black |
| Glass and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.4 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 401 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 820 MSM8996 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 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 21.00 MP + 8.00 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.42 inches (1/2.4") 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 (240 fps) (Full HD) slow motion video |
| 10.12 | 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 Li - Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 7.52 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| 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 is much better than the Alcatel Idol 4S with Windows, having an 84.1 score against 72.1. Even though the Galaxy M21 is incredibly newer than Alcatel Idol 4S with Windows, it is somewhat thicker and somewhat heavier. Galaxy M21 counts with Android 11 operating system, while Alcatel Idol 4S with Windows comes with Windows 10 Mobile operating system.
The Galaxy M21 counts with a little more vivid display than Alcatel Idol 4S with Windows, because it has a little more pixels per display inch, a bit higher resolution of 1080 x 2340 and a bigger display. The Samsung Galaxy M21 counts with a bit better processor than Alcatel Idol 4S with Windows, and although they both have 4 GB of RAM memory, the Samsung Galaxy M21 also has a higher number of cores (and also faster).
The Galaxy M21 counts with as much memory capacity to store more games and applications as the Alcatel Idol 4S with Windows, they have equal 64 GB internal storage and a slot for an external memory card that allows up to 512 GB. Galaxy M21 features a superior battery lifetime than Alcatel Idol 4S with Windows, because it has 6000mAh of battery capacity.
The Galaxy M21 shoots much clearer photographs and videos than Alcatel Idol 4S with Windows, and although they both have the same 30 frames per second video frame rates and the same (4K) video resolution, the Galaxy M21 also has a bigger aperture to take better low light photos and videos, a way more megapixels camera in the back and a larger camera sensor taking higher quality videos and photos.
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