Phone Comparison - Samsung I9100 Galaxy S II vs Sony Xperia Z1 vs Xiaomi Mi 4
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| Manufacturer | Samsung | Sony | Xiaomi |
| Announced | February 2011 | September 2013 | July 2014 |
| Status | Available - April 2011 | Available - September 2013 | Available - Q3 2014 |
| Colors | Black, White, Pink | Black, White, Purple | 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) |
144 x 74 x 8.5 mm (5.67 x 2.91 x 0.33 in) |
139.2 x 68.5 x 8.9 mm (5.48 x 2.7 x 0.35 in) |
| Weight | 116 g (4.09 oz) | 170 g (6 oz) | 149 g (5.26 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 / 900 / 1700 / 1900 / 2100 - all versions | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 - C6903 | LTE |
| Messaging | SMS, MMS, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | Waterproof (IPX5 and IPX8) Dustproof (IP5X) |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.3 (Jelly Bean) | Android OS, v4.4.3 (KitKat) |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Quad-core 2.2 GHz Krait 400, Qualcomm MSM8974 Snapdragon 800 | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 |
| GPU | Mali-400MP | Adreno 330 | Adreno 330 |
| RAM | 1 GB | 2 GB | 3 GB |
| Internal Memory | 16 GB/32 GB storage | 16 GB | 16/64 GB |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | No |
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| Type | Super AMOLED Plus capacitive touchscreen | TFT capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 5.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 1080 x 1920 pixels (441 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 63.52% | 64.55% | 72.14% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 20.7 MP | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | Dual-LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto-focus, 1/2.3' Sensor Size, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Panorama | Auto focus, 1/3' Sensor Size, 1.12µm Pixel Size, Geo-tagging, Touch Focus, Face And Smile Detection, HDR |
| Video | Yes, 1080p@30fps | Yes, 1080p@30fps, video stabilization, HDR | 2160p, 1080p@30fps, HDR |
| Front Camera | Yes, 2 MP [Similar] | Yes, 2 MP, 1080p@30fps [Similar] | 8 MP, 1080p@30fps [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Up to 107 kbps | Yes |
| Edge | Class 12 | Up to 296 kbps | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE |
| Bluetooth | Yes, v3.0+HS | Yes, v4.0 with A2DP, ANT+ | v4.0, A2DP |
| 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, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, microUSB v2.0 (MHL), USB On-the-go | microUSB v2.0 (MHL), USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 16GB/32GB storage, 1 GB RAM | 16 GB, 2 GB RAM | 16/64 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 64 GB | No |
| 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 | Standard battery, Li-Ion | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 1650 mAh | 3000 mAh | 3080 mAh |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
Up to 880 h (2G) Up to 850 h (3G) |
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| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
Up to 13 h 50 min (2G) Up to 15 h (3G) |
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