Phone Comparison - Samsung Galaxy Ace 2 vs Samsung Galaxy S Duos 2 S7582 vs Samsung Galaxy Note 4 Duos
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | February 2012 | November 2013 | October 2014 |
| Status | Available - May 2012 | Available - November 2013 | Available - October 2014 |
| Colors | Black | White, Black | Frosted white, Charcoal black, Bronze Gold, Blossom Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
153.5 x 78.6 x 8.5 mm (6.04 x 3.09 x 0.33 in) |
| Weight | 122 g (4.3 oz) | 118 g (4.16 oz) | 175 g (6.17 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 TD-SCDMA 1880 / 2010 - SIM 1 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 - SIM 1 |
| 4G Network | - | - | LTE 1800 / 2100 / 2600 (Bands 1, 3, 7) - SIM 1 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
| Build Features | - | - | - Fingerprint sensor (PayPal certified) - S Pen stylus |
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| OS | Android OS, v2.3 | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.4 (KitKat) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 | Quad-core 2.7 GHz Krait 450, Qualcomm Snapdragon 805 |
| GPU | Mali-400MP | Broadcom VideoCore IV | Adreno 420 |
| RAM | 768 MB | 768 MB | 3 GB |
| Internal Memory | 4 GB storage | 4 GB (1.9 GB user available) | 16 GB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 128 GB |
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| Type | PLS TFT capacitive touchscreen | TFT Capacitive Touchscreen, PLS | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.0 inches | 5.7 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 480 x 800 pixels (233 ppi) | 1440 x 2560 pixels (515 ppi) |
| Screen-to-Body Ratio | 55.64% | 59.52% | 74.32% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | No |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 5 MP, 2592х1944 pixels | 16 MP, 5312 x 2988 pixels |
| Flash | LED flash | LED flash | optical image stabil |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging | Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face/smile Detection, Panorama, HDR |
| Video | Yes, 720p@30fps | Yes, 720p@30fps | 2160p@30fps, 1080p@60fps, optical stabilization, dual-video rec. |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | 3.7 MP, 1440p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA, LTE |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP | v4.1, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | microUSB v2.0 (MHL 3), USB Host, USB On-the-go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 4 GB (1.9 GB user available), 768 MB RAM | 16 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | 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 | Standard battery, Li-Ion | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1500 mAh | 1500 mAh | 3000 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
Up to 280 h (3G) | Up to 381 h (3G) |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
Up to 8 h (3G) | - |
