Phone Comparison - Xiaomi Redmi 2 vs Xiaomi Redmi 3 vs Xiaomi Redmi 4X
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| Manufacturer | Xiaomi | Xiaomi | Xiaomi |
| Announced | January 2015 | January 2016 | February 2017 |
| Status | Available - January 2015 | Available - January 2016 | Available - March 2017 |
| Price | Rs. 5,999 ($88.22) [Similarly Priced] | Rs. 6,999 ($102.93) [Similarly Priced] | Rs. 6,790 ($100.00) [Similarly Priced] |
| Colors | Black, White, Yellow, Pink, Green | Dark Grey, Silver, Classic Gold | Cherry Pink, Champagne Gold, Matte Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
134 x 67.2 x 9.4 mm (5.28 x 2.65 x 0.37 in) |
139.3 x 69.6 x 8.5mm (5.48 x 2.74 x 0.33in) |
139.24 x 69.96 x 8.65 mm (5.48 x 2.75 x 0.34 in) |
| Weight | 133 g (4.69 oz) | 144 g (5.08 oz) | 150 g (5.29 oz) |
| SIM Type | - | - | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 1900 / 2100 TD-SCDMA 1900 / 2100 |
HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan |
| 4G Network | LTE 1800 / 2600 TD-LTE 1900 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) | LTE 700 / 1700 / 2600 /2300/2100/1800 | 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 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | - Fingerprint Sensor - Infrared Sensor - Metal Build - 2.5D Curved Glass |
| Notification LED | - | - | Yes |
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| OS | Android OS, v4.4 (KitKat) | Android OS, v5.1.1 (Lollipop) | Android OS, v6.0.1 (Marshmallow) |
| Processor | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Quad-core 1.5 GHz Cortex-A53 & quad-core 1.2 GHz Cortex-A53, Qualcomm Snapdragon 616 | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 |
| GPU | Adreno 306 | Adreno 405 | Adreno 505 |
| RAM | 1 GB | 2 GB | 2/3 GB |
| Internal Memory | 8 GB | 16 GB | 16/32 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 5.0 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (312 ppi) | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 67.83% | 70.95% | 70.62% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM Radio | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4160 x 3120 pixels |
| Flash | LED flash | LED flash | Dual-LED (dual Tone) |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Sony Sensor, Panorama, Real-time HDR | Phase Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Phase Detection Autofocus, f/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 1080p | 1080p@30fps | 1080p@30fps |
| Front Camera | 2 MP, 720p [Similar] | Yes, 5 MP, 1080p@30fps [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE Cat4 150/50 Mbps | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, VoLTE |
| Bluetooth | v4.0, A2DP | Yes, v4.1 with A2DP | v4.2, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go, USB Host | microUSB v2.0, USB OTG |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 8 GB, 1 GB RAM / 16 GB, 2 GB RAM | 16 GB, 2 GB RAM | 16/32 GB, 2/3 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
| USB OTG | - | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Li-Po Battery | Non-removable Li-Po Battery | Non-removable Li-Ion Battery |
| Capacity | 2200 mAh | 4100 mAh | 4100 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
