Phone Comparison - Samsung Galaxy S Duos 2 S7582 vs Xiaomi Mi 4 vs Xiaomi Redmi Note 3 (MediaTek)
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| Manufacturer | Samsung | Xiaomi | Xiaomi |
| Announced | November 2013 | July 2014 | November 2015 |
| Status | Available - November 2013 | Available - Q3 2014 | Available - November 2015 |
| Price | - | - | Rs. 11,999 ($176.46) [Similarly Priced] |
| Colors | White, Black | Black, White | Silver, Gray, Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
139.2 x 68.5 x 8.9 mm (5.48 x 2.7 x 0.35 in) |
150 x 76 x 8.7 mm (5.91 x 2.99 x 0.34 in) |
| Weight | 118 g (4.16 oz) | 149 g (5.26 oz) | 164 g (5.78 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE | LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Notification LED | - | - | Yes |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.3 (KitKat) | Android OS, v5.1 (Lollipop) |
| Processor | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 | Octa-core, Mediatek MT6795 Helio X10 |
| GPU | Broadcom VideoCore IV | Adreno 330 | PowerVR G6200 |
| RAM | 768 MB | 3 GB | 2/3 GB |
| Internal Memory | 4 GB (1.9 GB user available) | 16/64 GB | 16/32 GB |
| External Memory | microSD, up to 32 GB | No | microSD, up to 128 GB |
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| Type | TFT Capacitive Touchscreen, PLS | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 5.0 inches | 5.5 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 1080 x 1920 pixels (441 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 59.52% | 72.14% | 72.98% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | Dual-LED Flash | Dual-LED (Dual Tone) |
| Features | Auto focus, Geo-tagging | Auto focus, 1/3' Sensor Size, 1.12µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR | Phase Detection Autofocus, Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama |
| Video | Yes, 720p@30fps | 2160p, 1080p@30fps, HDR | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | 8 MP, 1080p@30fps [Similar] | 5 MP, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE | HSPA, LTE |
| Bluetooth | Yes, v4.0 with A2DP | v4.0, A2DP | v4.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0, USB On-The-Go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 4 GB (1.9 GB user available), 768 MB RAM | 16/64 GB, 3 GB RAM | 16/32 GB, 2/3 GB RAM |
| Expandable Storage | microSD, up to 32 GB | No | microSD, up to 128 GB |
| 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 | Standard battery, Li-Ion | Non-removable Li-Ion Battery | Li-Po Battery |
| Capacity | 1500 mAh | 3080 mAh | 4000 mAh |
| Stand by | Up to 280 h (3G) | - | Up to 264 h (3G) |
| Talk Time | Up to 8 h (3G) | - | - |
