Phone Comparison - Apple iPhone 4S vs Samsung Galaxy Grand Duos I9082 vs Asus Zenfone Zoom ZX551ML
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| Manufacturer | Apple | Samsung | Asus |
| Announced | October 2011 | December 2012 | September 2015 |
| Status | Available - October 2011 | Available - January 2013 | Available - January 2016 |
| Price | - | - | Rs. 37,999 ($558.81) [Similarly Priced] |
| Colors | Black, White | Black, White | Pure Black, Ceramic White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
143.5 x 76.9 x 9.6 mm (5.65 x 3.03 x 0.38 in) |
158.9 x 78.8 x 12 mm (6.26 x 3.1 x 0.47 in) |
| Weight | 140 g (4.94 oz) | 162 g (5.71 oz) | 185 g (6.53 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 - SIM 1 only HSDPA 900 / 1900 / 2100 - SIM 1 only |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 9(1800), 18(800), 19(800), 28(700) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | iOS 5 | Android OS, v4.1.2 (Jelly Bean) | Android OS, v5.0 (Lollipop) |
| Processor | 1 GHz dual-core ARM Cortex-A9 processor, Apple A5 chipset | Dual-core 1.2 GHz Cortex-A9, Broadcom | Quad-core 2.5 GHz, Intel Atom Z3590 |
| GPU | PowerVR SGX543MP2 | Broadcom VideoCore IV | PowerVR G6430 |
| RAM | 512 MB | 1 GB | 4 GB |
| Internal Memory | 16/32/64 GB storage | 8 GB | 128 GB |
| External Memory | No | microSD, up to 64 GB | microSD, up to 128 GB |
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| Type | LED-backlit IPS TFT | Capacitive touchscreen | IPS Capacitive Touchscreen, Corning Gorilla Glass 4 |
| Colors | capacitive touchscreen | 16M colors | 16M colors |
| Size | 3.5 inches | 5.0 inches | 5.5 inches |
| Resolution | 640 x 960 pixels (330 ppi) | 480 x 800 pixels (187 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 53.92% | 64.20% | 66.44% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | No |
| Games | Downloadable, incl. motion-bas | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264x2448 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | Dual-LED (Dual Tone) |
| Features | Auto focus, Touch Focus, Geo-tagging, Face Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Laser Autofocus, Optical Image Stabilization, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | Yes, 1080p@30fps, LED video light, video stabilization, geo-tagging | Yes, 1080p@30fps | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, 2 MP [Similar] | 5 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 14.4 Mbps; HSUPA, 5.8 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4+ 250/50 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP, LE, EDR | v4.0, A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot |
| USB | Yes, v2.0 | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, support and GLONASS | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML (Safari) | HTML5 | HTML5 |
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| Call Records | 100 received, dialed and missed calls | Practically unlimited | Practically unlimited |
| Internal | 16/32/64 GB storage, 512 MB RAM | 8 GB, 1 GB RAM | 128 GB, 4 GB RAM |
| Expandable Storage | No | microSD, up to 64 GB | microSD, up to 128 GB |
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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-Po | Standard battery, Li-Ion | Non-removable Li-Po Battery |
| Capacity | 1432 mAh | 2100 mAh | 3000 mAh |
| Stand by | Up to 200 h (2G) Up to 200 h (3G) |
Up to 440 h | - |
| Talk Time | Up to 14 h (2G) Up to 8 h (3G) |
Up to 10 h 10 min | - |
