Phone Comparison - Samsung I9100 Galaxy S II vs Sony Xperia E1 vs Acer Liquid Z4
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| Manufacturer | Samsung | Sony | Acer |
| Announced | February 2011 | January 2014 | February 2014 |
| Status | Available - April 2011 | Available - March 2014 | Coming Soon - April 2014 |
| Colors | Black, White, Pink | Black, Purple, White | Black/White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
118 x 62.4 x 12 mm (4.65 x 2.46 x 0.47 in) |
9.7 mm thickness (0.38 in thickness) |
| Weight | 116 g (4.09 oz) | 120 g (4.23 oz) | 130 g (4.59 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - all versions | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 - D2004 HSDPA 900 / 2100 - D2005 |
HSDPA |
| Messaging | SMS, MMS, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.3 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Dual-core 1.2 GHz, Qualcomm MSM8210 | Dual-core 1.3 GHz |
| GPU | Mali-400MP | Adreno 302 | - |
| RAM | 1 GB | 512 MB | 512 MB |
| Internal Memory | 16 GB/32 GB storage | 4 GB | 4 GB |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | TBD |
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| Type | Super AMOLED Plus capacitive touchscreen | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | - |
| Size | 4.3 inches | 4.0 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 63.52% | 61.98% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio with RDS | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 3 MP, 2048x1536 pixels | 5 MP, 2592x1944 pixels |
| Flash | LED flash | No | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Geo-tagging, Face Detection, HDR, Image Stabilization, Panorama, Red-eye reduction, Touch capture | - |
| Video | Yes, 1080p@30fps | Yes, SVGA@30FPS | Yes |
| Front Camera | Yes, 2 MP [Similar] | No [Similar] | No [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Up to 86 kbps | Yes |
| Edge | Class 12 | Up to 237 kbps | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v3.0+HS | Yes, v4.0 with A2DP | Yes |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Yes |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | - |
| Browser | HTML | HTML5 | HTML |
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| Internal | 16GB/32GB storage, 1 GB RAM | 4 GB, 512 MB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | TBD |
| 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 | Standard battery, Li-Ion | Li-Ion Battery | - |
| Capacity | 1650 mAh | 1750 mAh | - |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
Up to 551 h | - |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
Up to 9 h 12 min | - |
