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Specifications
Microsoft Lumia 640 Dual SIM |
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Microsoft Lumia 640 Dual SIM |
| Network | ||
|---|---|---|
| Technology | GSM / HSPA | |
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| Speed | HSPA 42.2/5.76 Mbps | |
| Launch | ||
|---|---|---|
| Announced | 2015, March. Released 2015, April | |
| Status | Discontinued | |
| Body | ||
|---|---|---|
| Dimensions | 141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in) | |
| Weight | 145 g (5.11 oz) | |
| SIM | Dual SIM (Micro-SIM, dual stand-by) | |
| Display | ||
|---|---|---|
| Type | IPS LCD | |
| Size | 5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio) | |
| Resolution | 720 x 1280 pixels, 16:9 ratio (~294 ppi density) | |
| Protection | Corning Gorilla Glass 3 | |
| ClearBlack display | ||
| Platform | ||
|---|---|---|
| OS | Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10 | |
| Chipset | Qualcomm MSM8926 Snapdragon 400 (28 nm) | |
| CPU | Quad-core 1.2 GHz Cortex-A7 | |
| GPU | Adreno 305 | |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (dedicated slot) | |
| Internal | 8GB 1GB RAM | |
| eMMC 4.5 | ||
| Main Camera | ||
|---|---|---|
| Modules | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF | |
| Features | LED flash | |
| Video | 1080p@30fps | |
| Selfie Camera | ||
|---|---|---|
| Modules | 1 MP | |
| Video | 720p | |
ADVERTISEMENT
| Sound | ||
|---|---|---|
| Loudspeaker | Yes | |
| 3.5mm jack | Yes | |
| Comms | ||
|---|---|---|
| WLAN | Wi-Fi 802.11 b/g/n, DLNA, hotspot | |
| Bluetooth | 4.0, A2DP | |
| Positioning | GPS, GLONASS, BDS | |
| NFC | No | |
| Infrared port | No | |
| Radio | FM radio | |
| USB | microUSB 2.0 | |
| Features | ||
|---|---|---|
| Sensors | Accelerometer, proximity, compass | |
| Battery | ||
|---|---|---|
| Type | Li-Ion 2500 mAh, removable | |
| Stand-by | Up to 840 h (2G) / Up to 840 h (3G) | |
| Talk time | Up to 27 h 30 min (2G) / Up to 20 h 30 min (3G) | |
| Misc | ||
|---|---|---|
| Colors | Glossy cyan, Orange, White, Matte black | Price | About 170 EUR |
| Tests | ||
|---|---|---|
| Display | Contrast ratio: 1034 (nominal), 2.563 (sunlight) | |
| Loudspeaker | Voice 70dB / Noise 65dB / Ring 75dB | |
| Audio quality | Noise -93.1dB / Crosstalk -93.2dB | |
| Battery (old) | Endurance rating 76h | |