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
• Note: 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
• Note: 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
• GPS: Yes, with A-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