Xiaomi Redmi Note 9 vs Samsung Galaxy M31 Prime

Phones Images
PHONES
Phone Names Xiaomi Redmi Note 9 Samsung Galaxy M31 Prime
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 20, 28, 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
Announced2020, April 302020, October 14. Released 2020, October 17
StatusAvailable. Released 2020, May 12Discontinued
Body
BuildGlass front (Gorilla Glass 5), plastic frame, plastic backGlass front (Gorilla Glass 3), plastic back, plastic frame
Dimensions162.3 x 77.2 x 8.9 mm (6.39 x 3.04 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
Weight199 g (7.02 oz)191 g (6.74 oz)
 Water-repellent coating-
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 3
Resolution1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density)
Size6.53 inches, 104.7 cm2 (~83.5% screen-to-body ratio)6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)
TypeIPS LCD, 450 nits (typ)Super AMOLED, 420 nits (peak)
Platform
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
ChipsetMediatek MT6769Z Helio G85 (12 nm)Exynos 9611 (10 nm)
GPUMali-G52 MC2Mali-G72 MP3
OSAndroid 10, upgradable to Android 12, MIUI 13Android 10, One UI 2.0
Memory
Call records-Yes
Card slotmicroSDXC (dedicated slot)microSDXC (dedicated slot)
Internal64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM64GB 6GB RAM, 128GB 6GB RAM
Phonebook-Yes
 -UFS 2.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, panorama, HDR
Quad48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro), AF Auxiliary lens64 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
Video1080p@30fps4K@30fps, 1080p@30fps, gyro-EIS
Selfie camera
FeaturesHDR, panoramaHDR
Single13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm32 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
Infrared portYes-
NFCYes (market/region dependent)M2003J15SG (Yes); M2003J15SS (No)No
PositioningGPS, GLONASS, GALILEO, BDSGPS, GLONASS, GALILEO, BDS
RadioFM radio, built-in antennaFM 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
Charging18W wired 9W reverse wired15W wired
Stand-by-Up to 150 h
Talk time-Up to 1 h 30 min
TypeLi-Po 5020 mAhLi-Po 6000 mAh
Misc
ColorsForest Green, Midnight Grey, Polar WhiteOcean Blue, Space Black, Iceberg Blue
ModelsM2003J15SC, M2003J15SG, M2003J15SSSM-M315F/DS
Price€ 88.99 / $ 85.68 / £ 136.28About 190 EUR
SAR0.84 W/kg (head)     0.90 W/kg (body)0.38 W/kg (head)
SAR EU0.80 W/kg (head)     1.14 W/kg (body)-
Tests
Battery lifeEndurance rating 125h-
Camera Photo / Video-
Display Contrast ratio: 1242:1 (nominal)-
Loudspeaker -30.1 LUFS (Below average)-
Performance AnTuTu: 200414 (v8) GeekBench: 1292 (v5.1)-
OUR TESTS
Battery (old)Endurance rating 125h-
CameraPhoto / Video-
Display1242:1 contrast ratio, 370 nits max brightness (measured)-
Loudspeaker-30.1 LUFS (Below average)-
PerformanceAnTuTu: 200414 (v8) GeekBench: 1292 (v5.1)-