Phone Comparison - Samsung I9506 Galaxy S4 vs Xiaomi Redmi 4X vs Samsung Galaxy A40
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| Manufacturer | Samsung | Xiaomi | Samsung |
| Announced | Q3 2013 | February 2017 | March 2019 |
| Status | Available - Q3 2013 | Available - March 2017 | Coming Soon - April 2019 |
| Price | - | Rs. 6,790 ($100.00) [Similarly Priced] | - |
| Colors | White Frost, Black Mist / Arctic Blue, Red Aurora | Cherry Pink, Champagne Gold, Matte Black | Black, White, Blue, Coral |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
136.6 x 69.8 x 7.9 mm (5.38 x 2.75 x 0.31 in) |
139.24 x 69.96 x 8.65 mm (5.48 x 2.75 x 0.34 in) |
144.3 x 69.1 x 7.9 mm (5.68 x 2.72 x 0.31 in) |
| Weight | 130 g (4.59 oz) | 150 g (5.29 oz) | - |
| SIM Type | - | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 HSDPA | HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 800 / 850 / 900 / 1800 / 2100 / 2600 | 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 | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | |
| Build Features | - | - Fingerprint Sensor - Infrared Sensor - Metal Build - 2.5D Curved Glass |
- Fingerprint Sensor |
| Notification LED | - | Yes | - |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v6.0.1 (Marshmallow) | Android 9.0 (Pie) |
| User Interface | - | MIUI 8 | - |
| Processor | Quad-core 2.3 GHz Krait 400, Qualcomm MSM8974 Snapdragon 800 | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 | Octa-core (2x1.8 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53), Exynos 7885 Octa (14 nm) |
| GPU | Adreno 330 | Adreno 505 | Mali-G71 |
| RAM | 2 GB | 2/3 GB | 4 GB |
| Internal Memory | 16/32 GB | 16/32 GB | 64 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 512 GB (dedicated slot) |
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| Type | Super AMOLED capacitive touchscreen | IPS LCD Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.9 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (294 ppi) | 1080 x 2280 pixels (428 ppi) |
| Screen-to-Body Ratio | 72.15% | 70.62% | 86.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM Radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4160 x 3120 pixels | 16 MP + 5 MP |
| Flash | LED flash | Dual-LED (dual Tone) | LED Flash |
| Features | Auto focus, Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Phase Detection Autofocus, f/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | 16 MP, f/2.0, PDAF 5 MP, f/2.2, 12mm, (ultrawide) Panorama, HDR |
| Video | Yes, 1080p@30fps, dual-video rec. | 1080p@30fps | 2160p@30fps, 1080p@30fps |
| Front Camera | Yes, 2 MP,1080p@30fps, dual video call [Similar] | 5 MP [Similar] | 25 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps, VoLTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat12 600/150 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, EDR, LE | v4.2, A2DP, EDR, LE | 4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | Yes, microUSB v2.0 (MHL 2), USB On-the-go, USB Host | microUSB v2.0, USB OTG | Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 16/32 GB, 2 GB RAM | 16/32 GB, 2/3 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 128 GB (uses SIM 2 slot) | microSD, up to 512 GB (dedicated slot) |
| USB OTG | Supported | 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-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 2600 mAh | 4100 mAh | 3100 mAh |
| Stand by | Up to 370 h (3G) | - | - |
| Talk Time | Up to 17 h (3G) | - | - |
