Product
Xiaomi Redmi Note 9 4G
Xiaomi Redmi Note 9 4G
Samsung Galaxy J2 Pro (2018)
Samsung Galaxy J2 Pro (2018)
Battery
Charging 18W wired 2.5W reverse wired -
Music play - Up to 60 h
Talk time - Up to 18 h (3G)
Type Li-Po 6000 mAh Li-Ion 2600 mAh, removable
Body
Build Glass front (Gorilla Glass 3), plastic frame, plastic back Glass front (Gorilla Glass), plastic back
Dimensions 162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) 143.8 x 72.3 x 8.4 mm (5.66 x 2.85 x 0.33 in)
SIM Nano-SIM + Nano-SIM Dual SIM (Micro-SIM, dual stand-by)
Weight 198 g (6.98 oz) 153 g (5.40 oz)
  Water-repellent coating -
Comms
Bluetooth 4.2, A2DP 4.2, A2DP
Infrared port Yes -
NFC No No
Positioning GPS, GLONASS, GALILEO, BDS GPS, GLONASS, BDS
Radio FM radio FM radio
USB USB Type-C 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 3 Corning Gorilla Glass (unspecified version)
Resolution 1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density) 540 x 960 pixels, 16:9 ratio (~220 ppi density)
Size 6.53 inches, 104.7 cm2 (~83.4% screen-to-body ratio) 5.0 inches, 68.9 cm2 (~66.3% screen-to-body ratio)
Type IPS LCD, 400 nits (typ) Super AMOLED
Features
Sensors Fingerprint (side-mounted), accelerometer, proximity, compass Accelerometer, proximity
Launch
Announced 2020, November 26 2018, January. Released 2018, January
Status Available. Released 2020, November 26 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, HDR, panorama
Single - 8 MP, f/2.2, AF
Triple 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (depth) -
Video 1080p@30fps 1080p@30fps
Memory
Card slot microSDXC (dedicated slot) microSDXC (dedicated slot)
Internal 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM 16GB 1.5GB RAM, 16GB 2GB RAM
  UFS 2.2 eMMC 5.1
Misc
Colors Gray, Green, Blue, Orange Black, Gold, Blue, Pink
Models M2010J19SC SM-J250F, SM-J250G, SM-J250F, SM-J250M, SM-J250Y
SAR - 0.51 W/kg (head)     1.20 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 2100
4G bands 1, 3, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 20, 38, 40 - Asia, Russia
Speed HSPA, LTE HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / CDMA / HSPA / LTE GSM / HSPA / LTE
  CDMA 800 1, 5, 8, 38, 40 - India
Platform
Chipset Qualcomm SM6115 Snapdragon 662 (11 nm) Qualcomm MSM8917 Snapdragon 425 (28 nm)
CPU Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) Quad-core 1.4 GHz Cortex-A53
GPU Adreno 610 Adreno 308
OS Android 10, upgradable to Android 12, MIUI 14 Android 7.1 (Nougat), upgradable to Android 8.0 (Oreo)
Selfie camera
Features - LED flash
Single 8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 5 MP, f/2.2
Video 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes, with stereo speakers Yes
  24-bit/192kHz Hi-Res audio -