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Brief information about compared phones: O2 XDA Stellar , QMobile E1O2 XDA Stellar 2007 year of release. cpu 400 MHz ARM 11. screen 2.8". with resolution 240x320. Smartphone has 0 megapixel front camera and 3 megapixel main camera . QMobile E1 2017 year of release. cpu Quad-core 1.0 GHz Cortex-A53. screen 5". with resolution 720x1280. Smartphone has 5 megapixel front camera and 8 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | 65K | 16M | ||
| Screen size | 2.8" inch | 5" inch | ||
| Screen area | 24.3 cm2 | 68.9 cm2 | ||
| Screen format | 4:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 36.7% | 66.6% | ||
| Screen resolution | 240 x 320 px | 720 x 1280 px | ||
| PPI /points per inch/ | 143 PPI | 294 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 8 MP, Single | |
| Camera specs | 3.15 MP, AF | 8 MP, AF, f/2.2 | ||
| Functions | LED flash | |||
| Video | Yes | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 5 MP, Single | ||
| Specifications | VGA videocall camera | 5 MP, f/2.4 | ||
| Performance | Operating system OS | Microsoft Windows Mobile 6.0 Professional | Android 6.0 (Marshmallow) | |
| Chipset | Qualcomm MSM7200 | Mediatek MT6735P (28 nm) | ||
| Processor CPU | 400 MHz ARM 11 | Quad-core 1.0 GHz Cortex-A53 | ||
| Graphics processor GPU | Adreno 130 | Mali-T720MP2 | ||
| External memory | microSD | microSD, up to 128 GB | ||
| Internal memory | 128 MB RAM, 256 MB ROM | 16 GB, 3 GB RAM | ||
| General specs | Release date | 2007, November | 2017, January | |
| Dimensions (HxWxD) | 112 Х 59 Х 18.6 mm | 143.8 Х 72 Х 8.9 mm | ||
| Weight | 190 g | 0 g | ||
| Colors | Silver | Black, Gold | ||
| Battery | 1350 mAh, Removable Li-Ion | 4000 mAh, Removable Li-Po | ||
| Battery life | Stand by time- Up to 365 h Talking time- Up to 5 h | |||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM (Micro-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 2100 -4G - LTE band 3(1800), 5(850) | ||
| Speed | HSPA 3.6/0.384 Mbps | HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps | ||
| GPRS | Class 10 | Yes | ||
| Edge | Class 10 | Yes | ||
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS | ||
| NFC | ||||
| USB | 2.0 | microUSB 2.0 | ||
| Bluetooth | 2.0 | 4.0, A2DP | ||
| Music and Audio | Radio | No | FM radio | |
| Headphone jack | No | Yes | ||
| Others | Handwriting recognition | |||
| Other features | Dop | Pocket Office -Business card reader -Voice memo -Media Player 10 HTC Kaiser platform | Sensors Accelerometer, proximity, compass | |
