Phone Comparison - Lenovo A390 vs Nokia Asha 503 Dual SIM vs Asus Zenfone 4
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| Manufacturer | Lenovo | Nokia | Asus |
| Announced | April 2013 | October 2013 | January 2014 |
| Status | Available - April 2013 | Coming Soon - Q4 2013 | Available - June 2014 |
| Colors | Black, White | Yellow, black, green, red, blue, white | Black, White, Red, Blue, Yellow |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
125.6 x 64 x 10.1 mm (4.94 x 2.52 x 0.4 in) |
102.6 x 60.6 x 12.7 mm (4.04 x 2.39 x 0.5 in) |
124.4 x 61.4 x 6.3-11.2 (4.9 x 2.42 x 0.25-0.44) |
| Weight | 131 g (4.62 oz) | 111.4 g (3.92.0.14 oz) | 115 g (4.06 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.0.4 (Ice Cream Sandwich) | Nokia Asha software platform 1.2 | Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) |
| Processor | Dual-core 1 GHz, MTK 6577 | - | Dual-core 1.2 GHz, Intel Atom Z2520 |
| GPU | PowerVR SGX531 | - | PowerVR SGX544MP2 |
| RAM | 512 MB | 64 MB | 1 GB |
| Internal Memory | 4 GB | N/A | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB, 4 GB card included | microSD, up to 64 GB |
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| Type | Capacitive touchscreen | TFT capacitive touchscreen | LCD Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | - | 256K colors | 16M colors |
| Size | 4.0 inches | 3.0 inches | 4.0 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 240 x 320 pixels (133 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 56.77% | 45.05% | 59.74% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | Stereo FM radio | FM Radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 х 1944 pixels | 5 MP, 2592x1944 pixels | 5 MP, 2592 x 1944 pixels |
| Flash | No | LED flash | No |
| Features | Geo-tagging | - | Auto focus, Geo-tagging, Panorama |
| Video | Yes | Yes, QVGA@15fps | Yes, 1080p@30fps |
| Front Camera | No [Similar] | No [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Up to 85.6 kbps | Yes |
| Edge | Yes | Up to 236.8 kbps | Yes |
| 3G | HSDPA, HSUPA | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | No | Yes, with A-GPS support |
| Browser | HTML5 | WAP 2.0/xHTML | HTML |
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| Internal | 4 GB, 512 MB RAM | 64 MB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB, 4 GB card included | microSD, up to 64 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 | Li-Ion Battery | Li-Ion Battery (BL-4U) | Li-Po Battery |
| Capacity | 1500 mAh | 1200 mAh | 1200/1600 mAh |
| Stand by | Up to 220 h (2G) Up to 180 h (3G) |
Up to 480 h (2G) Up to 480 h (3G) |
Up to 192 h |
| Talk Time | Up to 14 h (2G) Up to 9 h (3G) |
Up to 12 h (2G) Up to 4 h 30 min (3G) |
Up to 10 h |
