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| Manufacturer | Asus | Asus | Asus | 
| Announced | January 2014 | January 2014 | August 2015 | 
| Status | Available - June 2014 | Available - June 2014 | Available - August 2015 | 
| Price | - | - | Rs. 10,499 ($154.40) [Similarly Priced] | 
| Colors | Black, White, Red, Blue, Yellow | Black, White, Red, Blue, Gold | White/Purple | 
| Form Factor | Candybar | Candybar | Candybar | 
| Dimension | 124.4 x 61.4 x 6.3-11.2 (4.9 x 2.42 x 0.25-0.44) | 148.2 x 72.8 x 5.5-10.3 (5.83 x 2.87 x 0.22-0.41) | 152.5 x 77.2 x 10.9 mm (6 x 3.04 x 0.43 in) | 
| Weight | 115 g (4.06 oz) | 140 g (4.94 oz) | 170 g (6 oz) | 
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA 1900 / 2100 - India | 
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1900 / 2100 - India | 
| 4G Network | - | - | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 9(1800), 18(800), 19(800), 28(700) - Taiwan LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800) - Global LTE band 1(2100), 2(1900), 3(1800), 4(1700/2 | 
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | 
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| OS | Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) | Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) | Android OS, v5.0 (Lollipop) | 
| Processor | Dual-core 1.2 GHz, Intel Atom Z2520 | Dual-core 2.0 GHz / Dual-core 1.6 GHz, Intel Atom Z2580/Z2560 | Quad-core 2.3 GHz/Quad-core 1.8 GHz, Intel Atom Z3580/Intel Atom Z3560 | 
| GPU | PowerVR SGX544MP2 | PowerVR SGX544MP2 | PowerVR G6430 | 
| RAM | 1 GB | 1/2 GB | 4 GB | 
| Internal Memory | 8 GB | 8/16 GB | 64/128 GB | 
| External Memory | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 128 GB | 
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| Type | LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | IPS Capacitive Touchscreen, Corning Gorilla Glass 3 | 
| Colors | 16M colors | 16M colors | 16M colors | 
| Size | 4.0 inches | 5.0 inches | 5.5 inches | 
| Resolution | 480 x 800 pixels (233 ppi) | 720 x 1280 pixels (294 ppi) | 1080 x 1920 pixels (401 ppi) | 
| Screen-to-Body Ratio | 59.74% | 63.76% | 70.67% | 
| Multi-Touch |  |  |  | 
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| 3.5mm Jack |  |  |  | 
| Radio | FM Radio | FM Radio | FM radio with RDS | 
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable | 
| Loud Speaker |  |  |  | 
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| Rear Camera | 5 MP, 2592 x 1944 pixels | 8 MP, 3264 x 2448 pixels | 13 MP, 4128 x 3096 pixels | 
| Flash | No | LED flash | dual-LED (dual tone) | 
| Features | Auto focus, Geo-tagging, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | 
| Video | Yes, 1080p@30fps | Yes | 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, 42.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | 
| Bluetooth | Yes, v4.0 with A2DP, EDR | Yes, v4.0 with A2DP, EDR | v4.0, A2DP, EDR | 
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | 
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 | 
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS, GLONASS, Beidou | 
| Browser | HTML | HTML | HTML5 | 
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| Internal | 8 GB, 1 GB RAM | 8/16 GB, 1/2 GB RAM | 64/128 GB, 4 GB RAM | 
| Expandable Storage | microSD, up to 64 GB | microSD, up to 64 GB | microSD, up to 128 GB | 
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| Fingerprint |  |  |  | 
| Proximity Sensor |  |  |  | 
| Accelerometer Sensor |  |  |  | 
| NFC |  |  |  | 
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| Type | Li-Po Battery | Non-removable Li-Po Battery | Non-removable Li-Po Battery | 
| Capacity | 1200/1600 mAh | 2110 mAh | 3000 mAh | 
| Stand by | Up to 192 h | Up to 353 h (3G) | - | 
| Talk Time | Up to 10 h | Up to 18 h 30 min (3G) | - |