Phone Comparison - Samsung Galaxy A3 vs Samsung Galaxy S9 vs Xiaomi Redmi 9A
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | October 2014 | February 2018 | Not announced yet |
| Status | Available - November 2014 | Coming Soon, March 2018 | Rumored |
| Price | Rs. 14,265 ($209.78) [Similarly Priced] | Rs. 52,999 ($750.00) [Similarly Priced] | - |
| Colors | Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B | Various | Blue, other colors |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
130.1 x 65.5 x 6.9 mm ( 5.12 x 2.58 x 0.27 in) |
147.7 x 68.7 x 8.5 mm (5.81 x 2.7 x 0.33 in) |
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| Weight | 110.3 g (3.88.0.11 oz) | 163 g (5.75 oz) | - |
| SIM Type | - | Single SIM (Nano-SIM), Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | |
| Build Features | - | - Fingerprint Sensor - Samsung Pay (Visa, MasterCard certified) - IP68 certified - dust/water proof over 1.5 meter and 30 minutes |
- Fingerprint Sensor |
| Notification LED | - | Yes | - |
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| OS | Android OS, v4.4.2 (KitKat) | Android 8.0 (Oreo) | Android 10.0 |
| User Interface | - | Samsung Experience | MIUI 12 |
| Processor | Quad-core 1.2 GHz | Octa-core (4x2.8 GHz Mongoose M3 & 4x1.7 GHz Cortex-A55) - EMEA Octa-core (4x2.7 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA & China, Exynos 9810 Octa - EMEA Qualcomm Snapdragon 845 |
, MediaTek Helio G25 |
| GPU | - | Mali-G72 MP18 - EMEA Adreno 630 - USA & China |
Mali-G31 |
| RAM | 1 GB | 4 GB | 3 GB |
| Internal Memory | 16 GB | 64 GB | 32 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only | microSDXC (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5 | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.5 inches | 5.8 inches | 6.53 inches |
| Resolution | 540 x 960 pixels (245 ppi) | 1440 x 2960 pixels (568 ppi) | 720 x 1600 pixels (269 ppi) |
| Screen-to-Body Ratio | 65.39% | 84.00% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | - | No | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 12 MP | 13 MP |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie | Phase Detection Autofocus, f/1.5 - f/2.4 variable aperture lens, 26mm, 1/2.5", 1.4 µm, Dual Pixel PDAF, OIS, Geo-tagging, Simultaneous 4K Video And 9MP Image Recording, Touch Focus, Face/smile Detection, Auto HDR, Panorama | 13 MP, f/1.8, (wide), 1/3.1", 1.12µm, PDAF HDR, Panorama |
| Video | 1080p@30fps | 2160p@30fps, 1080p@60fps, HDR, dual-video rec. | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 8 MP, f/1.6, autofocus, 1440p, dual video call, Auto HDR [Similar] |
5 MP HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE-A (4CA) Cat16 1024/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.0, BLE, ANT+ | 5.0, A2DP, LE, aptX | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| USB | microUSB v2.0 | 3.1, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 16 GB, 1 GB RAM | 64 GB, 4 GB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 256 GB (uses SIM 2 slot) - dual SIM model only | microSDXC (dedicated slot) |
| USB OTG | - | Not Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Non-removable Li-Po Battery | Non-removable Li-Ion battery | Non-removable Li-Po Battery |
| Capacity | 1900 mAh | 3000 mAh | 5000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
