Phone Comparison - Asus Zenfone 2 vs Microsoft Lumia 640 LTE vs Lenovo Vibe X3
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| Manufacturer | Asus | Microsoft | Lenovo |
| Announced | Expected Announcement - March 2015 | March 2015 | November 2015 |
| Status | Rumored - March 2015 | Available - April 2015 | Available - December 2015 |
| Price | Rs. 10,499 ($154.40) [Similarly Priced] | Rs. 7,999 ($117.63) [Similarly Priced] | Rs. 19,999 ($294.10) [Similarly Priced] |
| Colors | Various | Yes | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
148.1 x 71.5 x 10.9 mm (5.83 x 2.81 x 0.43 in) |
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) |
154 x 76.5 x 9.3 mm (6.06 x 3.01 x 0.37 in) |
| Weight | 155 g (5.47 oz) | 145 g (5.11 oz) | 175 g (6.17 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE 700 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 (Bands 1, 2, 3, 4, 5, 7, 8, 28) |
LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v5.0 (Lollipop) | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v5.1 (Lollipop) |
| Processor | Quad-core 1.6 GHz, Intel Atom Z2560 | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.2 GHz Cortex-A53 & Dual-core 1.8 GHz Cortex-A57, Qualcomm MSM8992 Snapdragon 808 |
| GPU | - | Adreno 305 | Adreno 418 |
| RAM | 2 GB | 1 GB | 3 GB |
| Internal Memory | 16 GB | 8 GB | 32/64 GB |
| External Memory | microSD, up to 64 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
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| Type | IPS capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 5.0 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (294 ppi) | 720 x 1280 pixels (294 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 64.96% | 67.43% | 70.62% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | TBC | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 8 MP, 3264 x 2448 pixels | 21 MP, f/2.0 |
| Flash | LED flash | LED flash | Dual-tone Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Auto focus, 1/4'' Sensor Size | Phase Detection Autofocus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 2160p@30fps |
| Front Camera | 2 MP [Similar] | 1 MP, 720p [Similar] | 8 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps |
| Bluetooth | v4.0, A2DP, EDR | v4.0, A2DP | v4.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 2 GB RAM | 8 GB, 1 GB RAM | 32/64 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 64 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
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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 | Non-removable Li-Po Battery | Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 2500 mAh | 2500 mAh | 3500 mAh |
| Stand by | - | Up to 864 h (2G) Up to 864 h (3G) |
Up to 618 h (3G) |
| Talk Time | - | Up to 26 h 30 min (2G) Up to 17 h 30 min (3G) |
Up to 31 h (3G) |
