Phone Comparison - Xiaomi Redmi Note 9 vs Xiaomi Redmi 9 vs Samsung Galaxy Quantum 2
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| Manufacturer | Xiaomi | Xiaomi | Samsung |
| Announced | 2020, April 30 | Not announced yet | April 2021 |
| Status | Coming soon. Exp. release 2020, May | Coming soon. Exp. release 2020, June | Coming Soon - April 2021 |
| Colors | Forest Green, Midnight Grey, Polar White | Ocean Green, Sunset Purple, Carbon Gray | Black, White, Violet |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
162.3 x 77.2 x 8.9 mm (6.39 x 3.04 x 0.35 in) |
163.32 x 77.01 x 9.1 mm (6.43 x 3.03 x 0.36 in) |
161.9 x 73.8 x 8.1 mm (6.37 x 2.91 x 0.32 in) |
| Weight | 199 g (7.02 oz) | 198 g (6.98 oz) | 176 g (6.21 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Nano-SIM |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 2628, 32(1500), 38(2600), 39(1900), 40(2300), 41(2500) | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 25(1900), 2628, 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100), 71(600) | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 |
| 5G Network | - | - | 78 SA/NSA |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor Splash resistant |
- Fingerprint Sensor(under display, optical) |
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| OS | Android 10.0 | Android 10.0 | Android 11, One UI 3.1 |
| User Interface | MIUI 11 | MIUI 11, upgradable to MIUI 12 | One UI 3.1 |
| Processor | Octa-core (2x Cortex-A75 @ 2 GHz, 6x Cortex-A55 @ 2 GHz), MediaTek Helio G85 (12nm) | Octa-Core (Dual 2GHz Cortex-A75 + Hexa 2GHz 6x Cortex-A55 CPUs), MediaTek Helio G80 12nm | Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485), Qualcomm SM8150 Snapdragon 855+ (7 nm), QRNG security chipset |
| GPU | Mali-G52 MC2 | Mali-G52 2EEMC2 | Adreno 640 (700 MHz) |
| RAM | 4 GB | 4 GB | 6 GB |
| Internal Memory | 128 GB | 64 GB | 128 GB |
| External Memory | microSDXC (dedicated slot) | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
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| Type | FHD+ IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 | QHD+ Dynamic AMOLED 2X Screen 120Hz Refresh Rate 1200 nits (peak) |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 6.53 inches | 6.53 inches | 6.7 inches |
| Resolution | 1080 x 2340 pixels (395 ppi) | 1080 x 2340 pixels (395 ppi) | 1440 x 3200 pixels (524 ppi) |
| Screen-to-Body Ratio | 83.40% | 83.09% | 90.62% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio, recording | Wireless FM radio (no wired headphones required) | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP + 2 MP | 13 MP + 8 MP + 5 MP + 2 MP | 64 MP + 12 MP + 5 MP |
| Flash | LED flash | LED flash | LED Flash |
| Features | 48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro), AF 2 MP, f/2.4, (depth) HDR, Panorama |
13 MP, f/1.8, (wide), 1/3.1", 1.12µm, PDAF 8 MP, f/2.2, 118° (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama |
64 MP, f/1.8, 26mm (wide), 1/1.7X", 0.8µm, PDAF, OIS 12 MP, f/2.2, 123˚ (ultrawide), 1.12µm 5 MP, f/2.4, (macro) Panorama, HDR |
| Video | 1080p@30fps | 2160p@30fps, 1080p@30fps, gyro-EIS | 4K@30fps, 1080p@30/60/240fps; gyro-EIS |
| Front Camera |
13 MP, f/2.3, 29mm (normal), 1/3.1", 1.12µm HDR, Panorama 1080p@30fps [Similar] |
8 MP, f/2.0, (wide), 1/4", 1.12µm HDR 1080p@30fps [Similar] |
10 MP, f/2.2, (wide) HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE-A | HSPA, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A, 5G |
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | 2.0, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | Yes | Yes | Yes |
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| Internal | 128 GB, 4 GB RAM or 64 GB, 3 GB RAM | 64 GB, 4 GB RAM or 32 GB, 3 GB RAM | 128 GB, 6 GB RAM |
| Expandable Storage | microSDXC (dedicated slot) | microSDXC (dedicated slot) | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| Gyroscope Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast battery charging 25W |
| Capacity | 5020mAh | 5020 mAh | 4500 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
