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Global Score
84.179
Basic Information
SamsungSamsung
Android 11, 10Android 4.4
2020-03-232013-03-14
6.26 x 2.96 x 0.35 inches5.38 x 2.75 x 0.31 inches
6.63 ounces4.59 ounces
Midnight blue and Raven blackBlack, Blue, Red and White
Plastic and Plastic Polycarbonate
Scratch-Resistant GlassScratch-Resistant Glass
--$ 135.00
Display / Screen
6.4 inches5 inches
2340 x 1080 pixels 1080 x 1920 pixels (Full HD)
Super AMOLED Super AMOLED
403 pixels per inch441 pixels per inch
420 cd/m2 brightness--
No touch screenCapacitive, Multi-touch
8.49.1
Performance
Exynos 9611 chipsetQualcomm Snapdragon 600 APQ8064T chipset
Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processorKrait 300 (Quad-Core 1900 MHz) processor
4 GB RAM2 GB (800 MHz) RAM
Mali-G72 MP3 GPUAdreno 320 (400 MHz) GPU
9.279
Storage
64 GB internal memory64 GB internal memory
microSDXC (up to 512 GB) external memory slotmicroSD, microSDHC, microSDXC (up to 64 GB) external memory slot
11.749.46
Camera
48.00 MP + 20.00 MP13.00 MP + 2.00 MP
f/2.00 aperturef/2.20 aperture
26.00mm focal length31.00mm focal length
0.5 inches (1/2") sensor0.33 inches (1/3.06") sensor
3840 x 2160 (30 fps) (4K) video resolution1920 x 1080 (30 fps) (Full HD) video resolution
1920 x 1080 (240 fps) (Full HD) slow motion video--
11.559.02
Networks
Wi-FiWi-Fi
Mobile HotspotMobile Hotspot
LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPALTE (4G), HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM
Nano SIM, Dual SIMMicro SIM
6.77
Battery Life
6000mAh Li - Polymer Battery2600mAh Li-Ion Battery
Non-Removable BatteryRemovable Battery
--Wireless Charging
--17 hours talk time
7.524.56
Other Features
Bluetooth 5.0 Bluetooth 4.0
GPSGPS
--NFC
--Infra-red port
Fingerprint ID Scanner--
Accelerometer, Gyroscope and Proximity SensorAccelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor
FM Radio--

Comparison review

Galaxy M21 is a bit better than Galaxy S4, having a score of 84.1 against 79. These devices use Android OS (Operating System), but Galaxy M21 has newer 11 version while Galaxy S4 has Android 4.4. The Galaxy M21 construction is way newer than Galaxy S4's, although it's somewhat thicker and a lot heavier.

Galaxy M21 has a little better performance than Samsung Galaxy S4, because although it has doesn't have an extra graphics processing unit, it also counts with a larger number of cores (and faster) and more RAM memory. Samsung Galaxy S4 has just a bit better looking display than Samsung Galaxy M21, because although it has a bit worse resolution of 1920 x 1080px and a way smaller screen, it also counts with a little bit better pixel number per inch in the screen.

Galaxy M21 has a much greater memory for applications, games, photos and videos than Samsung Galaxy S4, and although they both have equal 64 GB internal storage capacity, the Galaxy M21 also has a slot for an SD memory card that allows up to 512 GB. Samsung Galaxy M21 captures much clearer pictures and videos than Samsung Galaxy S4, because it has a lot better 48 mega-pixels resolution camera, a lot bigger back-facing camera sensor taking more light and vivid colors, a much better (4K) video quality and a larger aperture to capture better images in low-light environments.

The Samsung Galaxy M21 has a superior battery lifetime than Galaxy S4, because it has a 131 percent greater battery capacity.




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