Phone Comparison - Oppo A57 vs Oppo A17 vs Xiaomi Redmi 12C
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| Price Comparison (India) | - | - | |
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| Manufacturer | Oppo | Oppo | Xiaomi |
| Announced | November 2016 | September 2022 | December 2022 |
| Status | Available - January 2017 | Available - September 2022 | Available - January 2023 |
| Price | Rs. 14,990 ($240.00) [Similarly Priced] | Rs. 12,499 ($0.00) [Similarly Priced] | Rs. 8,999 ($0.00) [Similarly Priced] |
| Colors | Gold, Rose Gold | Midnight Black, Lake Blue | Black, Blue, Mint, Violet |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
149.1 x 72.9 x 7.65 mm (5.87 x 2.87 x 0.3 in) |
164.2 x 75.6 x 8.3 mm (6.46 x 2.98 x 0.33 in) |
168.8 x 76.4 x 8.8 mm (6.65 x 3.01 x 0.35 in) |
| Weight | 147 g (5.19 oz) | 189 g (6.67 oz) | 192 g (6.77 oz) |
| SIM Type | Dual-SIM | 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 CDMA2000 1xEV-DO - A59m |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA2000 1xEV-DO |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) | 1, 3, 5, 8, 38, 40, 41 | 1, 3, 5, 8, 34, 38, 39, 40, 41 |
| Messaging | SMS, MMS, Push Mail, EMail | ||
| Build Features | - Fingerprint Sensor - Metal Build - 2.5D Curved Glass | - Fingerprint Sensor (side-mounted) ) |
- Fingerprint Sensor (rear-mounted) |
| Notification LED | Yes | - | - |
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| OS | Android OS, v6.0 (Marshmallow) | Android 12 | Android 12 |
| User Interface | ColorOS 3.0 | ColorOS 12.1 | MIUI 13 |
| Processor | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), MediaTek MT6765 Helio G35 (12 nm) | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55), MediaTek MT6769Z Helio G85 (12nm) |
| GPU | Adreno 505 | PowerVR GE8320 | Mali-G52 MC2 |
| RAM | 3 GB | 4 GB | 6 GB |
| Internal Memory | 32 GB | 64 GB | 128 GB |
| External Memory | microSD, up to 128 GB (uses SIM 2 slot) | microSDXC | microSDXC (dedicated slot) |
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| Type | IPS LCD capacitive touchscreen | IPS LCD Screen | FHD+ IPS LCD Screen 500 nits (typ) |
| Colors | 16M colors | 16M Colors | 16M Colors |
| Size | 5.2 inches | 6.56 inches | 6.71 inches |
| Resolution | 720 x 1280 pixels (282 ppi) | 720 x 1612 pixels (269 ppi) | 720 x 1650 pixels (268 ppi) |
| Screen-to-Body Ratio | 68.79% | 83.36% | 82.75% |
| 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 | 13 MP | 50 MP + 2 MP | 50 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED Flash |
| Features | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | 50 MP, f/1.8, (wide), PDAF 2 MP, f/2.4, (depth) HDR, Panorama |
50 MP, (wide), PDAF 2 MP (depth) HDR |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 16 MP [Similar] |
5 MP, f/2.2, (wide) HDR Yes [Similar] |
5 MP, f/2.2, (wide) 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE | HSPA, LTE |
| Bluetooth | v4.1, A2DP | Yes | 5.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| USB | microUSB v2.0, USB Host | microUSB 2.0 | microUSB 2.0 |
| GPS | Yes, with A-GPS | Yes, with A-GPS | GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 32 GB, 3 GB RAM | 64 GB, 4 GB RAM eMMC 5.1 | 128 GB, 6 GB RAM or 128 GB, 4 GB RAM or 64 GB, 4 GB RAM eMMC 5.1 |
| Expandable Storage | microSD, up to 128 GB (uses SIM 2 slot) | microSDXC | microSDXC (dedicated slot) |
| USB OTG | Supported | Not Supported | Not 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-Po Battery |
Non-removable Li-Po Battery Battery Charging 10W |
| Capacity | 2900 mAh | 5000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 12,499 
