Microsoft Lumia 640 Dual SIM
| Network | Technology | GSM / HSPA |
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G bands | 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 | Single | 8 MP, f/2.2, 28mm (wide), 1/4.0", AF |
|---|---|---|
| Features | LED flash | |
| Video | 1080p@30fps |
| Selfie camera | Single | 1 MP |
|---|---|---|
| Video | 720p |
| 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 | |
| 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) | ||
Disclaimer. We can not guarantee that the information on this page is 100% correct. Read more
Microsoft Lumia 640 review: Outgrowing the mold
Low-end Lumias dominate the Windows Phone market but aren't prestigious. To fix this, Microsoft crafted the Lumia 640 Trojan horse - a capable mid-ranger hiding behind an undeservedly low...
Microsoft Lumia 640 Dual SIM - user opinions and reviews
- Anonymous
- dNr
On my When you put the cover, the aftermarket in general, it holds the sound keys, and the phone don't start. Put you cover gently, or lime little, the inside off the bottom. I hope the fix the problem.
- Anonymous
- S4H
From September 2015 till now I still use this phone. Battery still last whole day at normal usage. Battery health is 100% (according to battery X app). Display is like new (Gorilla glass 3). Some apps like whats Up, messenger do not work anymore. Fac...
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