Samsung Galaxy M21 2021 vs Samsung Galaxy M31 Prime

Phones Images
PHONES
Phone Names Samsung Galaxy M21 2021 Samsung Galaxy M31 Prime
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66
EDGE-Yes
GPRS-Class 10
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
Launch
Announced2021, July 212020, October 14. Released 2020, October 17
StatusAvailable. Released 2021, July 26Discontinued
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions159 x 75.1 x 9 mm (6.26 x 2.96 x 0.35 in)159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight192 g (6.77 oz)191 g (6.74 oz)
Display
Protection-Corning Gorilla Glass 3
Resolution1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.4 inches, 100.5 cm2 (~84.2% screen-to-body ratio)6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)
TypeSuper AMOLED, 420 nits (peak)Super AMOLED, 420 nits (peak)
Platform
CPUOcta-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
ChipsetExynos 9611 (10 nm)Exynos 9611 (10 nm)
GPUMali-G72 MP3Mali-G72 MP3
OSAndroid 11, One UI 3.1 CoreAndroid 10, One UI 2.0
Memory
Call records-Yes
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal64GB 4GB RAM, 128GB 6GB RAM64GB 6GB RAM, 128GB 6GB RAM
Phonebook-Yes
 -UFS 2.1
Main Camera
FeaturesLED flash, panorama, HDRLED flash, panorama, HDR
Quad-64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm 5 MP (macro) Auxiliary lens
Single-3.15 MP
Triple48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0", 1.12µm Auxiliary lens-
Video4K@30fps, 1080p@30fps, 720p@240fps, gyro-EIS4K@30fps, 1080p@30fps, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single20 MP, f/2.2, 26mm (wide)32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video1080p@30fps4K@30fps, 1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYes (market/region dependent)No
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioFM radio, RDS, recordingFM radio, RDS, recording
USBUSB Type-C 2.0USB Type-C 2.0
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
Games-Downloadable
Java-Yes
Messaging-SMS, MMS, Email, Push Email, IM
SensorsFingerprint (rear-mounted), accelerometer, gyro, proximity, compassFingerprint (rear-mounted), accelerometer, gyro, compass
 -Virtual proximity sensing
Battery
Charging15W wired15W wired
Stand-by-Up to 150 h
Talk time-Up to 1 h 30 min
TypeLi-Po 6000 mAhLi-Po 6000 mAh
Misc
ColorsCharcoal Black, Arctic BlueOcean Blue, Space Black, Iceberg Blue
ModelsSM-M215G, SM-M215G/DSSM-M315F/DS
PriceAbout 130 EURAbout 190 EUR
SAR0.47 W/kg (head)0.38 W/kg (head)