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General
| Name | Samsung Galaxy A8 Duos | Microsoft Lumia 640 XL LTE Dual SIM |
|---|---|---|
| Launch Date | 1 Aug 2015 | 1 Mar 2015 |
| Brand | Samsung | Microsoft |
| Colors | Pearl White, Midnight Black, Champagne Gold | Matte cyan, Orange, Black, Matte white, Glossy white |
| Models | SM-A8000, SM-A800F, SM-A800Y, SM-A800I, SM-A800IZ, SM-A800S, SM-A800YZ | - |
Display
| Display Size | 5.7 Inches | 5.7 Inches |
|---|---|---|
| Display Type | Super AMOLED | IPS LCD |
| Resolution | 1080 x 1920 pixels | 720 x 1280 pixels |
| Refresh Rate | 60Hz | 60Hz |
| Display Protection | Gorilla Glass 4 | Gorilla Glass 3 |
| Aspect Ratio | 16:9 | 16:9 |
| Features | 73.8% (screen to body ratio), 386 ppi | 69.1% (screen to body ratio), 259 ppi |
Platform
| Operating System | Android 5.1 (Lollipop), upgradable to 6.0 (Marshmallow) | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 |
|---|---|---|
| Processor | Snapdragon 615 (28 nm) - A800Y, Exynos 5430 Octa (20 nm) - A800F | Snapdragon 400 (28 nm) |
| CPU | Octa-core (4x1.8 GHz Cortex-A53 & 4x1.3 GHz Cortex-A53) - A800Y, Octa-core (4x1.8 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7) - A800F | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Adreno 405 - A800Y, Mali-T628 MP6 - A800F | Adreno 305 |
Memory
| Ram | 2GB | 1GB |
|---|---|---|
| Ram Type | LPDDR3 | - |
| Storage | 32GB | 8GB |
| Storage Type | eMMC 5.0 or eMMC 4.5 | eMMC 4.5 |
| SD Card Slot | Yes | Yes |
Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Main | 16 MP, f/1.9, 31mm, AF | 13 MP, f/2.0, 28mm, 1/3", AF |
| Video | 1080p@30fps | 1080p@30fps |
| Features | HDR | Zeiss optics |
Front Camera
| Type | Single Camera | Single Camera |
|---|---|---|
| Selfie | 5 MP, f/1.9, 23mm | 5 MP |
| Video | 1080p@30fps | 1080p@30fps |
Battery
| Capacity | 3050 mAh | 3000 mAh |
|---|---|---|
| Battery Technology | Li-Ion, non-removable | Li-Ion, removable |
| Charging Speed | - | - |
| USB Type | Micro USB, USB 2.0 | Micro USB, USB 2.0 |
| Wireless Charging | No | No |
Network
| Sim | Dual Sim | Dual Sim |
|---|---|---|
| Sim Type | Hybrid Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Micro-SIM, dual stand-by) |
| Technology | 4G | 4G |
| Bands | ||
Connectivity
| Wi-Fi | WiFi 5 | WiFi 2.4 |
|---|---|---|
| Bluetooth | V4.1 | V4.0 |
| NFC | No | Yes |
| GPS | Yes | Yes |
Audio
| Loudspeaker | Yes | Yes |
|---|---|---|
| Headphone Jack | Yes | Yes |
Biometric
| Fingerprint | Yes | No |
|---|---|---|
| Fingerprint Type | Capacitive Fingerprint Scanner | - |
| Fingerprint Position | Front-Mounted | - |
| Face Unlock | Not Available | Not Available |
Body
| Dimensions | 158 x 76.8 x 5.9 mm | 157.9 x 81.5 x 9 mm |
|---|---|---|
| Weight | 151 g | 171 g |
| Frame | Aluminium Frame | Plastic Frame |
| Back | Plastic Back | Plastic Back |
| IP Rating | No | No |
Others
| Sensors | Accelerometer, proximity, compass | Accelerometer, proximity, compass, sensor core |
|---|---|---|
| SAR EU | 0.32 W/kg (head), 0.55 W/kg (body) | - |
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