Phone Comparison - Samsung I9505 Galaxy S4 vs Samsung Galaxy Alpha vs Samsung Galaxy A9
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | March 2013 | August 2014 | Expected Announcement - November 2015 |
| Status | Available - April 2013 | Available - September 2014 | Rumored - December 2015 |
| Colors | White Frost, Black Mist | Black, white, gold, silver, blue | Pearl White, Midnight Black, Champagne Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
136.6 x 69.8 x 7.9 mm (5.38 x 2.75 x 0.31 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
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| Weight | 130 g (4.59 oz) | 115 g (4.06 oz) | - |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) | Android OS, v5.1.1 (Lollipop), planned upgrade to v6.0 (Marshmallow) |
| Processor | Quad-core 1.9 GHz Krait 300, Qualcomm APQ8064T Snapdragon 600 | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 | Quad-core 1.8 GHz Cortex-A72 & quad-core 1.4 GHz Cortex-A53, Qualcomm MSM8976 Snapdragon 620 |
| GPU | Adreno 320 | Mali-T628 MP6 | Adreno 510 |
| RAM | 2 GB | 2 GB | 3 GB |
| Internal Memory | 16/32/64 GB storage | 32 GB | 32 GB |
| External Memory | microSD, up to 64 GB | No | microSD, up to 128 GB |
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| Type | Super AMOLED capacitive touchscreen | Super AMOLED capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.99 inches | 4.7 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (320 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 72.15% | 66.95% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | FM radio with RDS; recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels, Autofocus | 12 MP, 4128 x 3096 pixels | 16 MP, 5312 x 2988 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Drama Shot, Eraser, Sound and Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 1080p@30fps | 2160p@30fps | 1080p@30fps |
| Front Camera | Yes, 2 MP, Full HD 1080p@30fps [Similar] | 2.1 MP [Similar] | 5 MP, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, EDR | v4.0, A2DP, EDR, LE | v4.2, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | 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 (MHL), USB On-the-go | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS/ Beidou (market dependant) |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5 |
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| Internal | 16/32/64 GB storage, 2 GB RAM | 32 GB, 2 GB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 128 GB |
| USB OTG | 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 | Li-Ion Battery | Non-removable Li-Ion battery |
| Capacity | 2600 mAh | 1860 mAh | 4000 mAh |
| Stand by | Up to 350 h | - | - |
| Talk Time | Up to 17 h | - | - |
