Phone Comparison - ZTE Racer II vs Nokia Lumia 520 vs Lenovo A390
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| Manufacturer | ZTE | Nokia | Lenovo |
| Announced | August 2011 | February 2013 | April 2013 |
| Status | Available - September 2011 | Available - April 2013 | Available - April 2013 |
| Colors | Black | Yellow, red, cyan, white/black | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
104 x 55.4 x 13.5 mm (4.09 x 2.18 x 0.53 in) |
119.9 x 64 x 9.9 mm (4.72 x 2.52 x 0.39 in) |
125.6 x 64 x 10.1 mm (4.94 x 2.52 x 0.4 in) |
| Weight | 100 g (3.53 oz) | 124 g (4.37 oz) | 131 g (4.62 oz) |
| 2G Network | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100 |
HSDPA 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v2.2 (Froyo) | Microsoft Windows Phone 8 | Android OS, v4.0.4 (Ice Cream Sandwich) |
| Processor | 500 MHz ARM 11 | Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 | Dual-core 1 GHz, MTK 6577 |
| GPU | Adreno 305 | PowerVR SGX531 | |
| RAM | 512 MB | 512 MB | 512 MB |
| Internal Memory | 256 MB ROM | 8 GB storage | 4 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | IPS LCD capacitive touchscreen | Capacitive touchscreen |
| Colors | 256K colors | 16M colors | - |
| Size | 2.8 inches | 4.0 inches | 4.0 inches |
| Resolution | 240 x 320 pixels (143 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 42.05% | 59.47% | 56.77% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM Radio | FM radio |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 5 MP, 2592х1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | No | No | No |
| Features | Geo-tagging | Auto focus, Geo-tagging | Geo-tagging |
| Video | Yes | Yes, 720p@30fps | Yes |
| Front Camera | No [Similar] | No [Similar] | No [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 3.6 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v2.1 with A2DP, EDR | Yes, v4.0 with A2DP | Yes |
| Wi-Fi | Wi-Fi 802.11 b/g | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | WAP 2.0/xHTML, HTML | HTML5 | HTML5 |
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| Internal | 256 MB ROM, 512 MB RAM | 8 GB storage, 512 MB RAM | 4 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 64 GB | microSD, up to 32 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-Ion | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1100 mAh | 1430 mAh | 1500 mAh |
| Stand by | Up to 166 h | Up to 384 h (3G) Up to 360 h (3G) |
Up to 220 h (2G) Up to 180 h (3G) |
| Talk Time | Up to 4 h 35 min | Up to 17 h 24 min (2G) Up to 9 h 42 min (3G) |
Up to 14 h (2G) Up to 9 h (3G) |
