Search


Compare phones

Global Score
87.476.1
Basic Information
SamsungSamsung
Android 5.0Android 10
2015-04-112020-06-29
5.65 x 2.78 x 0.27 inches6.61 x 3.02 x 0.32 inches
4.87 ounces6.81 ounces
Black, Blue, Gold and WhiteBlack
Aluminium and GlassPlastic and Plastic
Scratch-Resistant Glass--
$ 252.00$ 194.00
Display / Screen
5.1 inches6.5 inches
1440 x 2560 pixels (Quad HD / 2K)1600 x 720 pixels
Super AMOLEDIPS LCD
576 pixels per inch270 pixels per inch
Capacitive, Multi-touchNo touch screen
9.97.3
Performance
Exynos 7 Octa 7420 chipsetMediatek Helio P35 chipset
64-bit ARM Cortex-A57 (Quad-Core 2100 MHz + Quad-Core 1500 MHz) processorArm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor
3 GB (1600 MHz) RAM3 GB RAM
Mali-T760 MP8 (650 MHz) GPUPowerVR GE8320 GPU
10.089.27
Storage
128 GB internal memory32 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
10.19.84
Camera
16.00 MP + 5.00 MP16.00 MP + 13.00 MP
f/1.90 aperturef/1.80 aperture
28.00mm focal length--
0.38 inches (1/2.6") sensor0.33 inches (1/3.06") sensor
3840 x 2160 (30 fps) (4K) video resolution1920 x 1080 (30 fps) (Full HD) video resolution
10.019.35
Networks
Wi-FiWi-Fi
Mobile HotspotMobile Hotspot
LTE-A (4G), LTE (4G), HSPA, HSUPA, UMTS, EDGE, GPRS and GSMLTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA
Nano SIM, Dual SIMNano SIM
6.76.7
Battery Life
2550mAh Battery4000mAh Li - Polymer Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
4.565.92
Other Features
Bluetooth 4.1Bluetooth 5.0
GPSGPS
NFCNFC
Infra-red port--
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor
--FM Radio

Comparison review

Samsung Galaxy S6 is much better than the Samsung Galaxy A21, getting an 87.4 score against 76.1. Although Samsung Galaxy S6 is way older than Samsung Galaxy A21, it's body is thinner and incredibly lighter. Both devices we compare here include Android OS, but Samsung Galaxy S6 has older 5.0 version and Samsung Galaxy A21 has Android 10.

The Samsung Galaxy S6 has just a little better performance than Samsung Galaxy A21, and although they both have the same number of cores and the same RAM amount, the Samsung Galaxy S6 also has a 64-bit CPU and an extra graphics processor. Samsung Galaxy S6 counts with an incredibly better screen than Samsung Galaxy A21, because although it has a way smaller screen, it also counts with a much greater amount of pixels per display inch and a much higher resolution of 2560 x 1440 pixels.

The Galaxy S6 features slightly more storage capacity to store more apps and games than Galaxy A21, because although it has no slot for external memory cards, it also counts with more internal memory. The Samsung Galaxy A21 features a superior battery performance than Samsung Galaxy S6, because it has a 57 percent more battery capacity.

The Galaxy S6 counts with a slightly better camera than Galaxy A21, because although it has a smaller aperture which is not favorable for low-light photography, and they both have the same resolution back facing camera, the Galaxy S6 also counts with a much higher video quality and a bigger sensor providing a better image quality.

Samsung Galaxy S6 is more expensive than Galaxy A21, but you can get a better phone for that extra dollars.




Disclaimer: As an Amazon Associate I earn from qualifying purchases.