Phone Comparison - Samsung I9100 Galaxy S II vs Apple iPad Air vs Asus Memo Pad 8 ME581CL
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| Manufacturer | Samsung | Apple | Asus |
| Announced | February 2011 | October 2013 | June 2014 |
| Status | Available - April 2011 | Available - November 2013 | Coming Soon - Q3 2014 |
| Colors | Black, White, Pink | Space Gray, Silver | White, Pink, Blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in) |
240 x 169.5 x 7.5 mm (9.45 x 6.67 x 0.3 in) |
213 x 123 x 7.5 mm (8.39 x 4.84 x 0.3 in) |
| Weight | 116 g (4.09 oz) | 469 g / 478 g (16.54 oz / 16.86 oz) | 299 g (10.55 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 CDMA2000 1xEV-DO |
GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE- all models | LTE 800 / 1800 / 2600 |
| Messaging | SMS, MMS, IM | , Push Mail, EMail, IM | , EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread), planned upgrade to v4.0 | iOS 7.0.2 | Android OS, v4.4.2 (KitKat) |
| Processor | Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset | Dual-core 1.3 GHz Cyclone (ARM v8-based), Apple A7 | Quad-core 2.3 GHz, Intel Atom Z3580 |
| GPU | Mali-400MP | PowerVR G6430 (quad-core graphics) | PowerVR G6430 |
| RAM | 1 GB | N/A | 2 GB |
| Internal Memory | 16 GB/32 GB storage | 16/32/64/128 GB storage | 16/32 GB |
| External Memory | microSD, up to 32GB, 8 GB included | No | No |
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| Type | Super AMOLED Plus capacitive touchscreen | LED-backlit IPS LCD, capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.3 inches | 9.7 inches | 8.0 inches |
| Resolution | 480 x 800 pixels (217 ppi) | 1536 x 2048 pixels (264 ppi) | 1200 x 1920 pixels (283 ppi) |
| Screen-to-Body Ratio | 63.52% | 71.58% | 70.84% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | No | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592 x 1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | No | No |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | Geo-tagging |
| Video | Yes, 1080p@30fps | Yes, 1080p@30fps, video stabilization | Yes |
| Front Camera | Yes, 2 MP [Similar] | Yes, 1.2 MP, 720p@30fps, face detection, [Similar] | Yes, 1.2 MP [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps, LTE, 100 Mbps; EV-DO Rev. A, up to 3.1 Mbps | HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes, v3.0+HS | Yes, v4.0 with A2DP | Yes, v4.0 |
| 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, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB (MHL), USB On-the-go | Yes, v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with GLONASS |
| Browser | HTML | HTML (Safari) | HTML5 |
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| Internal | 16GB/32GB storage, 1 GB RAM | 16/32/64/128 GB storage | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | No | 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 | Non-removable Li-Po battery (32.4 Wh) | Non-removable Li-Po battery (15.2 Wh) |
| Capacity | 1650 mAh | - | - |
| Stand by | Up to 710 h (2G) Up to 610 h (3G) |
- | - |
| Talk Time | Up to 18 h 20 min (2G) Up to 8 h 40 min (3G) |
Up to 10 h (multimedia) | Up to 9 h (multimedia) |
