Samsung Galaxy M31 vs Samsung Galaxy S21 FE SD888

Samsung Galaxy M31

Samsung Galaxy S21 FE SD888

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100)

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 34, 38, 39, 40, 41
5G network

-

5G band SA/NSA/Sub6 - global; SA/NSA/Sub6/mmWave - USA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, Cat10, 452 Mbps download, 102 Mbps upload

LTE-A (5CA), Cat19, 1600 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Glass front (Gorilla Glass Victus), plastic back, aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
Height

159.2 mm

155.7 mm
Width

75.1 mm

74.5 mm
Thickness

8.9 mm

7.9 mm
Weight

191 g

177 g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IP68 (1.5m and 30 mins)
Dust proof

-

IP68
Colors

Black, Blue, Red

Graphite, Lavender, Olive, White

Display
Display type

Super AMOLED capacitive touchscreen

Dynamic AMOLED 2X
Physical size

6.4 inches

6.4 inches
Resolution

1080 x 2340 pixels

1080 x 2400 pixels
Pixel density

411 ppi

411 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass

Scratch resistant, Corning Gorilla Glass Victus
Multitouch

Yes

-
Display features

-

Always-on display, 120Hz, HDR10+

Main camera
Camera type

Triple

Triple
Main camera

64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

12 MP, f/1.8 , 26 mm, 1/1.76" , 1.8 µm, (wide) , 79˚ , 30x digital zoom
8 MP, f/2.2 , 12 mm, 1/4.0" , 1.12 µm

8 MP, f/2.4 , 76 mm, 1/4.5" , 1.0 µm, (telephoto) , 3x optical zoom , 30x digital zoom
5 MP, f/2.4 , 25 mm, 1/5.0" , 1.12 µm

12 MP, f/2.2 , 13 mm, 1/3.0" , 1.12 µm, 123˚ , (ultrawide)
5 MP, f/2.2
Primary camera resolution

9280 x 6944 pixels

4032 x 3024 pixels
Primary camera video

2160p@30fps, 1080p@30fps, gyro-EIS

4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Autofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Selfie camera
Selfie camera

32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm

32 MP, f/2.2 , 26 mm, 1/2.74" , 0.8 µm, (wide) , 81˚
Selfie camera resolution

6528 x 4896 pixels

-
Selfie camera features

-

HDR, face detection, face unlock
Selfie camera video

2160p@30fps, 1080p@30fps

4K@30/60fps, 1080p@30/60fps, gyro-EIS

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes