Phone Comparison - Xiaomi Redmi Note 9 4G vs Realme 9i vs Infinix Note 40
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Realme | Infinix |
| Announced | November 2020 | January 2022 | March 2024 |
| Status | Coming Soon - December 2020 | Available - January 2022 | Available - March 2024 |
| Price | - | Rs. 13,999 ($0.00) [Similarly Priced] | - |
| Colors | Gray, Green, Blue, Orange | Black, Blue | Titan Gold, Obsidian Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
162.3 x 77.3 x 9.6 mm (6.39 x 3.04 x 0.38 in) |
164.4 x 75.7 x 8.4 mm (6.47 x 2.98 x 0.33 in) |
164.1 x 74.5 x 7.8 mm (6.46 x 2.93 x 0.31 in) |
| Weight | 198 g (6.98 oz) | 190 g (6.7 oz) | 190 g (6.7 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 2100 |
| 4G Network | 1, 3, 5, 8, 34, 38, 39, 40, 41 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 1, 3, 5, 8, 38, 40, 41 |
1, 2, 3, 4, 5, 7, 8, 12, 17, 13, 26, 28, 38, 40, 41, 66 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 1, 3, 5, 8, 38, 40, 41 |
| Messaging | |||
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) ) |
- Fingerprint Sensor (under display, optical) IP54, dust and splash resistant |
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| OS | Android 10 | Android 11 | Android 14 |
| User Interface | MIUI 12 | Realme UI 2.0 | XOS 14 |
| Processor | Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver), Qualcomm SM6115 Snapdragon 662 (11 nm) | Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver), Qualcomm SM6225 Snapdragon 680 4G (6 nm) | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55), Mediatek Helio G99 Ultimate |
| GPU | Adreno 610 | Adreno 610 | Mali-G57 MC2 |
| RAM | 8 GB | 6 GB | 8 GB |
| Internal Memory | 256 GB | 128 GB | 256 GB |
| External Memory | microSDXC (dedicated slot) | microSDXC (dedicated slot) | Unspecified |
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| Type | IPS LCD Screen Corning Gorilla Glass 3 400 nits (typ) |
FHD+ IPS LCD Screen 90Hz Refresh Rate 480 nits (typ) Dragontrail Pro Glass |
FHD+ AMOLED Screen 120Hz Refresh Rate 1300 Nits (peak) Corning Gorilla Glass |
| Colors | 16M Colour | 16M Colors | 16M colors |
| Size | 6.53 inches | 6.6 inches | 6.78 inches |
| Resolution | 1080 x 2340 pixels (395 ppi) | 1080 x 2412 pixels (400 ppi) | 1080 x 2436 pixels (393 ppi) |
| Screen-to-Body Ratio | 83.29% | 84.40% | 89.89% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 48 MP + 8 MP + 2 MP | 50 MP + 2 MP + 2 MP | 108 MP + 2 MP |
| Flash | LED Flash | LED Flash | Quad-LED Flash |
| Features | 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) HDR, Panorama |
50 MP, f/1.8, 26mm (wide), 1/2.76", 0.64µm, PDAF 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, Panorama |
108 MP, f/1.9, (wide), 1/1.52", PDAF 2 MP, f/2.4 3rd unspecified camera HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1440p@30fps, 1080p@30/60fps |
| Front Camera |
8 MP, f/2.0, 27mm (wide), 1/4.0", 1.12µm 1080p@30fps [Similar] |
16 MP, f/2.1, 26mm (wide), 1/3.0", 1.0µm Panorama 1080p@30fps [Similar] |
32 MP, f/2.2, (wide), 1/3.1" 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 42.2/5.76 Mbps, LTE-A | HSPA, LTE |
| Bluetooth | 4.2, A2DP | 5.0, A2DP, LE | Yes |
| 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, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| USB | USB Type-C 2.0, USB On-The-Go | USB Type-C 2.0, USB On-The-Go | USB Type-C 2.0, OTG |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS | GPS |
| Browser | Yes | Yes | Yes |
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| Internal | 256 GB, 8 GB RAM or 128 GB, 8 GB RAM or 128 GB, 6 GB RAM or 128 GB, 4 GB RAM | 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM UFS 2.1 | 256 GB, 8 GB RAM UFS 2.2 |
| Expandable Storage | microSDXC (dedicated slot) | microSDXC (dedicated slot) | Unspecified |
| 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 Reverse charging 2.5W |
Non-removable Li-Po Battery Fast battery Charging 33W, 100% in 70 min (advertised) |
Non-removable Li-Po Battery Fast battery Charging 45W wired, 50% in 26 min 20W wireless MagCharge Reverse wired Reverse wireless |
| Capacity | 6000 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 13,999 
