Phone Comparison - Xiaomi Redmi 4X vs Xiaomi Redmi 6A vs Xiaomi Redmi Note 9 Pro
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| Price Comparison (India) | - | - | |
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| Manufacturer | Xiaomi | Xiaomi | Xiaomi |
| Announced | February 2017 | June 2018 | 2020, March 12 |
| Status | Available - March 2017 | Available - June 2018 | Coming soon. Exp. release 2020, March 17 |
| Price | Rs. 6,790 ($100.00) [Similarly Priced] | Rs. 5,999 ($0.00) [Similarly Priced] | Rs. 12,999 ($0.00) [Similarly Priced] |
| Colors | Cherry Pink, Champagne Gold, Matte Black | Grey, Blue, Gold, Rose Gold | Aurora Blue, Glacier White, Interstellar Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
139.24 x 69.96 x 8.65 mm (5.48 x 2.75 x 0.34 in) |
147.5 x 71.5 x 8.3 mm (5.81 x 2.81 x 0.33 in) |
165.8 x 76.7 x 8.8 mm (6.53 x 3.02 x 0.35 in) |
| Weight | 150 g (5.29 oz) | 145 g (5.11 oz) | 209 g (7.37 oz) |
| SIM Type | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) | Dual SIM (Nano-SIM, dual stand-by) | Hybrid 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 CDMA 800 & TD-SCDMA |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Taiwan | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 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), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | ||
| Build Features | - Fingerprint Sensor - Infrared Sensor - Metal Build - 2.5D Curved Glass |
- | - Fingerprint Sensor (Side-mounted) |
| Notification LED | Yes | - | - |
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| OS | Android OS, v6.0.1 (Marshmallow) | Android 8.1 (Oreo), planned upgrade to Android 9.0 (Pie) | Android 10.0 |
| User Interface | MIUI 8 | MIUI 9.0 | MIUI 11 |
| Processor | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 | Quad-core 2.0 GHz Cortex-A53, Mediatek MT6761 Helio A22 (12 nm) | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | Adreno 505 | PowerVR GE8320 | Adreno 618 |
| RAM | 2/3 GB | 3 | 6 GB |
| Internal Memory | 16/32 GB | 32 GB | 128 GB |
| External Memory | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 256 GB (dedicated slot) | microSDXC (uses shared SIM slot) |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.45 inches | 6.67 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1440 pixels (295 ppi) | 1080 x 2340 pixels (386 ppi) |
| Screen-to-Body Ratio | 70.62% | 72.88% | 86.05% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM radio | FM radio, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4160 x 3120 pixels | 13 MP | 48 MP + 8 MP + 2 MP + 2 MP |
| Flash | Dual-LED (dual Tone) | LED Flash | LED flash |
| Features | Phase Detection Autofocus, f/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | 13 MP, f/2.2, PDAF HDR, Panorama |
48 MP, f/1.8, (wide), 1/1.43", 1.12µm, omnidirectional PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro), 1/5.0", 1.75µm 2 MP, f/2.4, (depth) HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS |
| Front Camera | 5 MP [Similar] | 5 MP, f/2.2, 1.12μm [Similar] |
16 MP, (wide) 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 Cat6 300/50 Mbps, VoLTE | HSPA 21.1/5.76 Mbps, LTE-A (2CA) Cat7 300/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.2, A2DP, EDR, LE | 4.2, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0, USB OTG | microUSB 2.0 | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 16/32 GB, 2/3 GB RAM | 32 GB, 3 RAM or 16 GB, 2 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 256 GB (dedicated slot) | microSDXC (uses shared SIM 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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| NFC | |
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| Type | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Po Battery Fast battery charging 18W |
| Capacity | 4100 mAh | 3000 mAh | 5020 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 5,999 
