Phone Comparison - Oppo A37 vs Oppo A57 vs Xiaomi Redmi Note 4X
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| Price Comparison (India) | - | - | |
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| Manufacturer | Oppo | Oppo | Xiaomi |
| Announced | June 2016 | November 2016 | February 2017 |
| Status | Available - June 2016 | Available - January 2017 | Available - February 2017 |
| Price | Rs. 10,590 ($155.74) [Similarly Priced] | Rs. 14,990 ($240.00) [Similarly Priced] | Rs. 12,750 ($180.00) [Similarly Priced] |
| Colors | Gold, Rose Gold | Gold, Rose Gold | Gold, Silver, Gray |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.1 x 71 x 7.7 mm (5.63 x 2.8 x 0.3 in) |
149.1 x 72.9 x 7.65 mm (5.87 x 2.87 x 0.3 in) |
151 x 76 x 8.35 mm (5.94 x 2.99 x 0.33 in) |
| Weight | 136 g (4.8 oz) | 147 g (5.19 oz) | 175 g (6.17 oz) |
| SIM Type | Dual-SIM | Dual-SIM | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1xEV-DO - A59m |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 |
| 4G Network | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 41(2500) | LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) | LTE |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
| Build Features | - | - Fingerprint Sensor - Metal Build - 2.5D Curved Glass | - Fingerprint Sensor - Infrared Sensor |
| Notification LED | - | Yes | Yes |
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| OS | Android OS, v5.1 (Lollipop) | Android OS, v6.0 (Marshmallow) | Android OS, v6.0.1 (Marshmallow) |
| User Interface | - | ColorOS 3.0 | MIUI 8 |
| Processor | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8916 Snapdragon 410 | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 |
| GPU | Adreno 306 | Adreno 505 | Adreno 506 |
| RAM | 2 GB | 3 GB | 4 GB |
| Internal Memory | 16 GB | 32 GB | 64 GB |
| External Memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 256 GB |
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| Type | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen, Gorilla Glass Protection |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.2 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (282 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 67.70% | 68.79% | 72.50% |
| 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, f/2.0 | 13 MP | 13 MP |
| Flash | LED flash | LED Flash | Dual-LED (Dual Tone) |
| Features | Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, f/2.0, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 1080p@30fps | 1080p@30fps | 2160p@30fps, 1080p@30fps, 720p@120fps |
| Front Camera | 5 MP, f/2.4, 1/4" sensor size [Similar] | 16 MP [Similar] | 5 MP, 1080p, f/2.0 [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE |
| Bluetooth | v4.0, A2DP | v4.1, A2DP | Yes, v4.2 |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB Host | microUSB v2.0, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with A-GPS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 2 GB RAM | 32 GB, 3 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 256 GB |
| USB OTG | - | Supported | Yes |
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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 | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 2630 mAh | 2900 mAh | 4100 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 11,535 
Rs. 11,399 
Rs. 11,589 
