Phone Comparison - Asus VivoTab RT vs Oppo R1S vs Xiaomi Redmi Note 2 Prime
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| Manufacturer | Asus | Oppo | Xiaomi |
| Announced | October 2012 | April 2014 | August 2015 |
| Status | Available - November 2012 | Coming Soon - Q2 2014 | Available - August 2015 |
| Price | - | - | Rs. 10,840 ($159.00) [Similarly Priced] |
| Colors | Black | White, Blue | White, Blue, Yellow, Pink, Mint Green |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
262.5 x 170.9 x 8.3 mm (10.33 x 6.73 x 0.33 in) |
142.7 x 70.4 x 7.1 mm (5.62 x 2.77 x 0.28 in) |
152 x 76 x 8.3 mm (5.98 x 2.99 x 0.33 in) |
| Weight | 525 g (18.52 oz) | 140 g (4.94 oz) | 160 g (5.64 oz) |
| 2G Network | N/A | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 TD-SCDMA |
| 3G Network | - | HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA 1880-1920/ 2010-2025 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE 1800 / 2600 TD-LTE 1880-1920/ 2300-2400/ 2570-2620 |
LTE band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
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| OS | Microsoft Windows RT | Android OS, v4.3 (Jelly Bean) | Android OS, v5.0 (Lollipop) |
| Processor | Quad-core 1.3 GHz Cortex-A9, Nvidia Tegra 3 T30 | Quad-core 1.6 GHz Cortex-A7, Qualcomm Snapdragon 400 | Octa-core 2.2 GHz Cortex-A53, Mediatek MT6795 |
| GPU | ULP GeForce | Adreno 305 | PowerVR G6200 |
| RAM | 2 GB | 1 GB | 2 GB |
| Internal Memory | 32/64 GB storage | 16 GB | 32 GB |
| External Memory | microSD, up to 64 GB | No | Yes |
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| Type | Super IPS+ LCD capacitive touchscreen | IPS LCD capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 10.1 inches | 5.0 inches | 5.5 inches |
| Resolution | 1366 x 768 pixels (155 ppi) | 720 x 1280 pixels (294 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 62.80% | 68.47% | 72.02% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264 x 2448 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | Yes |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Phase Detection Auto-focus (PDAF), Geo-tagging, Touch Focus, Face/smile Detection, HDR, Panorama |
| Video | Yes, 1080p@30fps | Yes, 1080p | 1080p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 5 MP [Similar] | 5 MP, 720p [Similar] |
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| GPRS | No | Yes | Yes |
| Edge | No | Yes | Yes |
| 3G | - | HSPA+, LTE | HSPA, LTE |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP | v4.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | Yes, USB v2.0, USB Host support | Yes, microUSB v2.0 | microUSB v2.0 |
| GPS | Yes | Yes, with A-GPS support | Yes, with A-GPS, GLONASS, Beidou |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32/64 GB storage, 2 GB RAM | 16 GB, 1 GB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | Yes |
| USB OTG | Supported | - | - |
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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 Battery | Li-Po Battery |
| Capacity | 25 Wh | 2410 mAh | 3060 mAh |
| Stand by | - | - | Up to 144 h (3G) |
| Talk Time | Up to 9 h | - | Up to 11 h 30 min (3G) |
