Phone Comparison - Xiaomi Redmi Note 4 vs Xiaomi Redmi Note 7 vs Xiaomi Redmi Note 8 2021
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| Price Comparison (India) | - | ||
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| Manufacturer | Xiaomi | Xiaomi | Xiaomi |
| Announced | January 2017 | January 2019 | Not announced yet |
| Status | Available - January 2017 | Available - January 2019 | Rumored |
| Price | Rs. 10,999 ($145.00) [Similarly Priced] | Rs. 9,999 ($0.00) [Similarly Priced] | - |
| Colors | Gold, Silver, Gray | Blue, Black, Twilight Gold | Blue; other colours |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
151 x 76 x 8.45 mm (5.94 x 2.99 x 0.33 in) |
159.2 x 75.2 x 8.1 mm (6.27 x 2.96 x 0.32 in) |
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| Weight | 165 g (5.82 oz) | 186 g (6.56 oz) | - |
| SIM Type | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) | Hybrid 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | LTE |
| Messaging | SMS, MMS, Push Mail, EMail | ||
| Build Features | - Fingerprint Sensor - Infrared Sensor |
- Fingerprint Sensor |
- Fingerprint Sensor (rear-mounted) |
| Notification LED | Yes | - | - |
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| OS | Android OS, v6.0.1 (Marshmallow) | Android 9.0 (Pie) | Android 11 |
| User Interface | MIUI 8 | MIUI 10 | MIUI 12 |
| Processor | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 | Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260), Qualcomm SDM660 Snapdragon 660 (14 nm) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55), MediaTek Helio G85 (12nm) |
| GPU | Adreno 506 | Adreno 512 | Mali-G52 MC2 |
| RAM | 2/3/4 GB | 4/6 GB | 6 GB |
| Internal Memory | 32/64 GB | 64 GB | 128 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 256 GB (uses SIM 2 slot) | microSDXC (dedicated slot) |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 | FHD+ IPS LCD Screen Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M Colour |
| Size | 5.5 inches | 6.3 inches | 6.3 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 1080 x 2340 (409 ppi) | 1080 x 2340 pixels (409 ppi) |
| Screen-to-Body Ratio | 72.50% | 81.41% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM radio, recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | 48 MP + 5 MP | 48 MP + 8 MP + 2 MP + 2 MP |
| Flash | Dual-LED (Dual Tone) | Dual-LED flash | LED Flash |
| Features | Phase Detection Autofocus, f/2.0 aperture, Sony IMX258/Samsung S5K3L8 sensor, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | 48 MP, f/1.8, 1/2", 0.8µm, PDAF 5 MP, f/2.4, depth sensor HDR, Panorama |
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) 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 2160p@30fps, 1080p@30fps, 720p@120fps | 1080p@30/60/120fps, (gyro-EIS) | 4K@30fps, 1080p@30/60/120fps; gyro-EIS |
| Front Camera | 5 MP, 1080p, f/2.0 [Similar] | 13 MP, f/2.2, 1.25µm, HDR, 1080p@30fps [Similar] |
13 MP, f/2.2, (wide), 1.12µm HDR, panorama 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.2, A2DP, LE | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi 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 | microUSB v2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector | USB Type-C 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 32/64 GB, 2/3/4 GB RAM | 64 GB, 4/6 GB RAM or 32 GB, 3 GB RAM | 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 6 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 256 GB (uses SIM 2 slot) | microSDXC (dedicated slot) |
| USB OTG | Yes | Yes | 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-Ion Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery Fast battery charging 18W |
| Capacity | 4100 mAh | 4000 mAh | 4000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 10,999 
