Phone Comparison - Samsung Galaxy Ace Duos I589 vs Samsung Galaxy Ace 2 vs Nokia Lumia 1020
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| Manufacturer | Samsung | Samsung | Nokia |
| Announced | February 2012 | February 2012 | July 2013 |
| Status | Available - February 2012 | Available - May 2012 | Available - July 2013 |
| Colors | Black | Black | Black, White, Yellow |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112.4 x 59.9 x 12.5 mm (4.43 x 2.36 x 0.49 in) |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
130.4 x 71.4 x 10.4 mm (5.13 x 2.81 x 0.41 in) |
| Weight | 122 g (4.3 oz) | 122 g (4.3 oz) | 158 g (5.57 oz) |
| 2G Network | CDMA 800 / 1900 GSM 900 / 1800 |
GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | CDMA2000 1xEV-DO | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE 800 / 900 / 1800 / 2100 / 2600 |
| Messaging | SMS, MMS | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.2 (Froyo) | Android OS, v2.3 | Microsoft Windows Phone 8 |
| Processor | 800 MHz, Qualcomm MSM7627 | Dual-core 800 MHz, NovaThor U8500 | Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon |
| GPU | Mali-400MP | Adreno 225 | |
| RAM | N/A | 768 MB | 2 GB |
| Internal Memory | N/A | 4 GB storage | 32 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32GB | No |
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| Type | TFT capacitive touchscreen | PLS TFT capacitive touchscreen | AMOLED capacitive touchscreen, PureMotion HD+ ClearBlack Display, Gorilla Glass 3 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 3.8 inches | 4.5 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 480 x 800 pixels (246 ppi) | 768 x 1280 pixels (332 ppi) |
| Screen-to-Body Ratio | 54.06% | 55.64% | 61.80% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | Stereo FM radio with RDS |
| Games | Yes | Yes | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 5 MP, 2592x1944 pixels | 41 MP (38 MP effective, 7152 x 5368 pixels) |
| Flash | No | LED flash | Xenon Flash |
| Features | Geo-tagging | Auto focus, Geo-tagging, Face And Smile Detection | Carl Zeiss optics, Auto Focus, 1/1.2' Sensor Size, ND Filter, Optical Zoom, Geo-tagging, Face Detection, Optical Zoom, Panorama |
| Video | Yes | Yes, 720p@30fps | Yes, 1080p@30fps |
| Front Camera | No [Similar] | Yes, VGA [Similar] | Yes, 1.2 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Up to 107 kbps |
| Edge | Yes | Yes | Up to 236.8 kbps |
| 3G | Rev. A, up to 3.1 Mbps | HSDPA, 14.4 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, UPnP technology |
| USB | Yes, v2.0 microUSB | Yes, v2.0 microUSB | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | HTML | HTML | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 32 GB, 2 GB RAM | |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32GB | No |
| 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 | Standard battery, Li-Ion | Non-removable Li-Ion Battery, Wireless Charging Supported via Cover |
| Capacity | 1650 mAh | 1500 mAh | 2000 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
Up to 384 h | |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
Up to 19 h 6 min (2G) Up to 13 h 18 min (3G) |
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