| Samsung Galaxy Note 4 (USA) |
Xiaomi Redmi Note 9 Pro |
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| Hardware and OS | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Operating system | Android 4.4.4 (KitKat), upgradable to 6.0.1 (Marshmallow) | Android 10.0; MIUI 11 |
| Processor | Quad-core 2.7 GHz Krait 450 | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) |
| Chipset | Qualcomm APQ8084 Snapdragon 805 (28 nm) | Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | Adreno 420 | Adreno 618 |
| Internal memory | 32GB 3GB RAM | 64GB 4GB RAM, 128GB 6GB RAM |
| External memory | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| Display | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Type | Super AMOLED capacitive touchscreen, 16M colors | IPS LCD |
| Size | 5.7 inches, 88.5 cm2 | 6.67" inc |
| Resolution | 1440 x 2560 pixels, 16:9 ratio | 1080 x 2400 px |
| Protection | Corning Gorilla Glass 4 | Corning Gorilla Glass 5 |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 84.5% | |
| Display area | 107.4 cm2 | |
| Display aspect ratio | 20:9 (height:width) | |
| Pixel Density | 395 PPI | |
| Colors | 16M | |
| Other | 450 nits typ. brightness (advertised) | |
| Main Camera | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Camera | 16 MP, f/2.2, 31mm (standard), 1/2.6", 1.12?m, AF, OIS | |
| Features | LED flash, panorama, HDR | |
| Video | 2160p@30fps, 1080p@30/60fps, dual-video rec., stereo sound rec. | |
| Selfie camera | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Camera | 3.7 MP, f/1.9, 22mm (wide) | |
| Features | HDR | |
| Video | 1440p@30fps | |
| Connectivity | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| 2G Network | CDMA 800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | CDMA2000 1xEV-DO | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 17(700) | LTE band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500) |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| CDMA | GSM 850 / 900 / 1800 / 1900 | |
| Bluetooth | 4.1, A2DP, EDR, LE | 5.0, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| Infrared port | Yes | |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, GALILEO, BDS, NavIC |
| NFC | Yes | |
| Speed | HSPA, LTE-A Cat4 150/50 Mbps, EV-DO Rev.A 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| USB | microUSB 2.0 (MHL 3 TV-out), USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| Technology | GSM / CDMA / HSPA / EVDO / LTE | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Camera | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Main camera | 48 MP, Quad | |
| Specs | 48 MP, f/1.8, (wide), 1/2.25", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm -5 MP, f/2.4, (macro), 1.12µm -2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS | |
| Selfie camera | 16 MP, Single | |
| Multimedia | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Loudspeaker | Yes | |
| Multimedia | 24-bit/192kHz audio | |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio, recording |
| Design | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Body | Stylus | |
| Colors | Frosted white, Charcoal black, Bronze Gold, Blossom Pink | Aurora Blue, Glacier White, Interstellar Black |
| Body build | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame | |
| Dimensions | 153.5 x 78.6 x 8.5 mm (6.04 x 3.09 x 0.33 in) | 165.8 x 76.7 x 8.8 mm |
| Weight | 176 g (6.21 oz) | 209 g |
| SIM | Micro-SIM | |
| Battery | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Capacity | Removable Li-Ion 3220 mAh battery | |
| Stand-by | Up to 212 h (3G) | |
| Talk time | Up to 31 h 20 min (3G) | |
| Battery capacity | 5020 mAh, Non-removable Li-Po | |
| Features | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Sensors | Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, gesture, UV, heart rate, SpO2 | |
| Other | Samsung Galaxy Note 4 (USA) | Xiaomi Redmi Note 9 Pro |
| Release date | 2020, March 12 | |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass , Infrared port |
