Compare phones
| Global Score | |
| 83 | 84.1 |
| Basic Information | |
| Apple | Samsung |
| iOS 9.x | Android 11, 10 |
| 2015-09-09 | 2020-03-23 |
| 5.44 x 2.64 x 0.28 inches | 6.26 x 2.96 x 0.35 inches |
| 5.04 ounces | 6.63 ounces |
| Gold, Gray and Pink | Midnight blue and Raven black |
| Aluminium, Glass and Steel | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 575.00 | -- |
| 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 A9 APL0898 chipset | Exynos 9611 chipset |
| 64-bit Twister, 64-bit (Dual-Core 1840 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (1600 MHz) RAM | 4 GB RAM |
| PowerVR GT7600 (650 MHz) GPU | Mali-G72 MP3 GPU |
| 9.81 | 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 | |
| 12.00 MP + 5.00 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 |
| 3840 x 2160 (30 fps) (4K) 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 |
| 9.68 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), HSPA, HSUPA, EV-DO A, 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 | |
| 1715mAh Li-Ion Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 240 hours standby time 14 hours talk time | -- |
| 3.6 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | 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 |
Comparison review
The Galaxy M21 has an overall score of 84.1, which is a little bit better than the iPhone 6s's 83 score. The Galaxy M21 comes with Android 11 OS, while iPhone 6s counts with iOS 9.x OS. Although Galaxy M21 is way newer than the iPhone 6s, it is extremely heavier and somewhat thicker. The iPhone 6s features a bit faster CPU than Galaxy M21, because although it has less RAM memory and a lower number of cores, it also counts with a 64 bits CPU and an additional graphics co-processor.
IPhone 6s has a little more vivid screen than Galaxy M21, because although it has a much lower 1334 x 750 pixels resolution, a just a little lower number of pixels per display inch and a way smaller display, it also counts with a quite brighter display. Samsung Galaxy M21 counts with a better storage capacity for applications, games, photos and videos than Apple iPhone 6s, because although it has only 64 GB internal storage, it also counts with a SD card slot that supports a maximum of 512 GB.
The Galaxy M21 captures much clearer pictures and videos than iPhone 6s, and although they both have the same video resolution and the same 30 frames per second video frame rate, the Galaxy M21 also has a bigger aperture, a much more mega-pixels camera and a much bigger sensor which provides a much better image and video quality.
The Galaxy M21 features a much better battery lifetime than iPhone 6s, because it has 6000mAh of battery capacity instead of 1715mAh.
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