Compare phones

Global Score
Basic Information
Android 11Android 10, 9.0 Pie
6.50 x 2.98 x 0.35 inches6.11 x 2.91 x 0.31 inches
8.04 ounces5.93 ounces
Phantom black and SilverMidnight blue and Seawater blue
Aluminum and Glass (Corning Gorilla Glass Victus)Plastic
Scratch-Resistant GlassScratch-Resistant Glass
$ 966.00--
Display / Screen
6.8 inches6.3 inches
3200 x 1440 pixels 2340 x 1080 pixels
516 pixels per inch409 pixels per inch
1500 cd/m2 brightness--
No touch screenNo touch screen
Qualcomm Snapdragon 888 chipsetQualcomm Snapdragon 675 SM6150 chipset
Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processorKryo 460, 64-bit, 11 nm (Octa-Core 2000 MHz) processor
Adreno 660 GPUAdreno 612 GPU
128 GB internal memory128 GB internal memory
No SD card slotmicroSDXC (up to 512 GB) external memory slot
108.00 MP + 40.00 MP32.00 MP + 16.00 MP
f/1.80 aperturef/1.70 aperture
24.00mm focal length27.00mm focal length
0.75 inches (1/1.33") sensor0.36 inches (1/2.8") sensor
7680 x 4320 (24 fps) video resolution3840 x 2160 (30 fps) (4K) video resolution
1280 x 720 (960 fps) (HD) slow motion video1280 x 720 (240 fps) (HD) slow motion video
Mobile HotspotMobile Hotspot
5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPALTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA
Nano SIMNano SIM
Battery Life
5000mAh Li - Polymer Battery3500mAh Battery
Non-Removable BatteryNon-Removable Battery
Wireless Charging--
Other Features
Bluetooth 5.1 Bluetooth 5.0
Fingerprint ID ScannerFingerprint ID Scanner
Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity SensorAccelerometer, Compass, Gyroscope and Proximity Sensor
FM RadioFM Radio

Comparison review

The Galaxy S21 Ultra has a general score of 11.67, which is much better than the Galaxy M40's 10.15 overall score. Even though the Galaxy S21 Ultra is newer than the Galaxy M40, it is incredibly heavier and somewhat thicker. Both of these phones work with Android OS, but Galaxy S21 Ultra has a newer 11 version while Galaxy M40 has Android 10 version, providing some nice extra features and enhanced performance.

Galaxy S21 Ultra counts with a way better looking display than Galaxy M40, because it has a bit larger display, a higher amount of pixels per inch in the display and a higher resolution of 1440 x 3200 pixels. The Galaxy S21 Ultra counts with a bit more powerful processing unit than Galaxy M40, and although they both have a Octa-Core CPU, the Galaxy S21 Ultra also has 6 GB more RAM memory.

Samsung Galaxy M40 features a way bigger storage capacity for apps and games than Samsung Galaxy S21 Ultra, and although they both have equal 128 GB internal memory capacity, the Samsung Galaxy M40 also has a slot for SD memory cards that supports up to 512 GB. Samsung Galaxy S21 Ultra counts with a way better camera than Samsung Galaxy M40, because although it has a smaller aperture which is not so good for low-light photos and video, it also counts with a lot bigger camera sensor which offers a way higher image and video quality, a way better 7680x4320 video definition and a way more megapixels back-facing camera.

The Galaxy S21 Ultra has just a bit longer battery lifetime than Galaxy M40, because it has a 43% bigger battery size.