| Global Score | |
| 79.2 | 84.1 |
| Basic Information | |
| Apple | Samsung |
| iOS 8.x | Android 11, 10 |
| 2014-09-09 | 2020-03-23 |
| 5.44 x 2.64 x 0.27 inches | 6.26 x 2.96 x 0.35 inches |
| 4.55 ounces | 6.63 ounces |
| Gold and Gray | Midnight blue and Raven black |
| Aluminium, Glass and Steel | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 170.00 | -- |
| Display / Screen | |
| 4.7 inches | 6.4 inches |
| 750 x 1334 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 326 pixels per inch | 403 pixels per inch |
| 500 cd/m2 brightness | 420 cd/m2 brightness |
| Capacitive, Multi-touch | No touch screen |
| 8.9 | 8.4 |
| Performance | |
| Apple A8 chipset | Exynos 9611 chipset |
| 64-bit Cyclone ARMv8-A 2nd gen. (Dual-Core 1400 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 1 GB (1600 MHz) RAM | 4 GB RAM |
| PowerVR GX6450 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 8.00 MP + 1.20 MP | 48.00 MP + 20.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| 29.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (60 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 8.91 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA, HSUPA, UMTS, EV-DO A, EV-DO B, EDGE, GPRS, GSM and CDMA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.9 | 6.7 |
| Battery Life | |
| 1810mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 250 hours standby time 14 hours talk time | -- |
| 3.68 | 7.52 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy M21 is slightly better than the iPhone 6, getting a general score of 84.1 against 79.2. The Samsung Galaxy M21 counts with Android 11 operating system, and iPhone 6 comes with iOS 8.x operating system. Samsung Galaxy M21 is a much newer phone than iPhone 6, although it's way heavier and incredibly thicker.
Galaxy M21 has a CPU that's just as good as Apple iPhone 6's processor, because although the Galaxy M21 has a 32-bit processor instead of 64-bits and doesn't have an additional graphics co-processor, it also counts with more cores and a larger amount of RAM. The iPhone 6 features a little sharper screen than Samsung Galaxy M21, because although it has a much smaller display, a little lower number of pixels per screen inch and a much lower resolution of 1334 x 750 pixels, it also counts with a bit brighter screen.
The Galaxy M21 shoots greater pictures and videos than iPhone 6, because it has a camera with a much higher resolution, a much bigger sensor, a much higher 3840x2160 video quality and a larger diafragm aperture. Samsung Galaxy M21 features a quite bigger storage to install applications and games than iPhone 6, because although it has just 64 GB internal storage, it also counts with a SD extension slot that supports up to 512 GB.
The Samsung Galaxy M21 has a much longer battery performance than iPhone 6, because it has 6000mAh of battery capacity instead of 1810mAh.
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