On this page we compare specs Xiaomi Redmi Note 4 Octa-core 2.0 GHz Cortex-A53 with Xiaomi Redmi Note 9 Pro Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), we compare external dimensions, compare screens and performance, the amount of RAM and memory for storing media data, battery capacity and characteristics of photo cameras, compare the presence of various sensors and functions.
Hardware and OS | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Operating system | Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat); MIUI 10 | Android 10.0; MIUI 11 |
Processor | Octa-core 2.0 GHz Cortex-A53 | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) |
Chipset | Qualcomm MSM8953 Snapdragon 625 (14 nm) | Qualcomm SM7125 Snapdragon 720G (8 nm) |
GPU | Adreno 506 | Adreno 618 |
Internal memory | 64 GB, 4 GB RAM32 GB, 3 GB RAM; 64 GB, 3 GB RAM (China only) | 64GB 4GB RAM, 128GB 6GB RAM |
External memory | microSD, up to 256 GB (uses SIM 2 slot) | microSDXC (dedicated slot) |
Display | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Type | IPS LCD | IPS LCD |
Size | 5.5" inc | 6.67" inc |
Resolution | 1080 x 1920 px | 1080 x 2400 px |
Protection | | Corning Gorilla Glass 5 |
Touchscreen | capacitive touchscreen | capacitive touchscreen |
Screen-to-Body Ratio | 72.7% | 84.5% |
Display area | 83.4 cm2 | 107.4 cm2 |
Display aspect ratio | 16:9 (height:width) | 20:9 (height:width) |
Pixel Density | 401 PPI | 395 PPI |
Colors | 16M | 16M |
Other | | 450 nits typ. brightness (advertised) |
Connectivity | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
4G Network | LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300) | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500) |
Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
SIM card | Hybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
Bluetooth | 4.1, A2DP, LE | 5.0, A2DP, LE |
Edge | Yes | Yes |
GPRS | Yes | Yes |
GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC |
Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
USB | microUSB 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
Camera | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Specs | 13 MP, f/2.0, 1.12µm, PDAF | |
Main camera | 13 MP, Single | 48 MP, Quad |
Features | Dual-LED dual-tone flash, panorama, HDR | LED flash, HDR, panorama |
Video | 1080p@30fps, 720p@120fps | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS |
Selfie camera | 5 MP, Single | 16 MP, Single |
Multimedia | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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3.5 mm Jack | Yes | Yes |
Radio | FM radio | FM radio, recording |
Design | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Colors | Dark Gray, Gold, Black, Lake Blue (64/4GB model) | Aurora Blue, Glacier White, Interstellar Black |
Body build | Front glass, aluminum body | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame |
Dimensions | 151 x 76 x 8.5 mm | 165.8 x 76.7 x 8.8 mm |
Weight | 165 g | 209 g |
Battery | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Battery capacity | 4100 mAh, Non-removable Li-Po | 5020 mAh, Non-removable Li-Po |
Other | Xiaomi Redmi Note 4 | Xiaomi Redmi Note 9 Pro |
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Release date | 2017, January | 2020, March 12 |
Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass , Infrared port | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port |