Phone Comparison - Karbonn Titanium Wind W4 vs Microsoft Lumia 535 Dual SIM vs Nokia Lumia 638
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| Manufacturer | Karbonn | Microsoft | Nokia |
| Announced | September 2014 | November 2014 | December 2014 |
| Status | Coming Soon - September 2014 | Available - November 2014 | Available - December 2014 |
| Price | Rs. 4,599 ($67.63) [Similarly Priced] | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 7,999 ($117.63) [Similarly Priced] |
| Colors | Black, White | Orange, green, white, black, gray, blue | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
140.2 x 72.4 x 8.8 mm (5.52 x 2.85 x 0.35 in) |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
| Weight | - | 146 g (5.15 oz) | 136 g (4.8 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE 1800 / 1900 / 2100 / 2300 / 2500 / 2600 (Bands 3, 7, 38, 39, 40, 41) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Microsoft Windows Phone 8.1 | Microsoft Windows Phone 8.1 | Microsoft Windows Phone 8.1 |
| Processor | Quad-core 1.2 GHz, Qualcomm Snapdragon 200 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 200 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Adreno 302 | Adreno 302 | Adreno 305 |
| RAM | 512 MB | 1 GB | 1 GB |
| Internal Memory | 4 GB | 8 GB | 8 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 128 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 | IPS LCD capacitive touchscreen, Corning Gorilla Glass 3, ClearBlack Display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 5.0 inches | 4.5 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 540 x 960 pixels (220 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | - | 68.08% | 64.43% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 x 1936 pixels | 5 MP, 2592 x 1936 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED Flash | LED flash | No |
| Features | Auto focus, Geo-tagging | Auto focus, 1/4' Sensor Size, Geo-tagging | Auto focus, 1/4 |
| Video | Yes | 480p@30fps | Yes |
| Front Camera | Yes, VGA [Similar] | 5 MP [Similar] | No [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Up to 236.8 kbps | Up to 236 kbps | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA 42.2/5.76 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.0, A2DP | v4.0, A2DP | v4.0, A2DP, LE/ apt-X after WP8 Denim update |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 4 GB, 512 MB RAM | 8 GB, 1 GB RAM | 8 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 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 | Li-Ion Battery | Li-Ion Battery (BL-L4A) | Li-Ion Battery (BL-5H) |
| Capacity | 1950 mAh | 1905 mAh | 1830 mAh |
| Stand by | - | Up to 336 h | - |
| Talk Time | - | Up to 11 h (2G) Up to 13 h (3G) |
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