Ahead of its October 6 event in New York City, Microsoft upcoming Windows 10 smartphones, Lumia 950, Lumia 950 XL and Lumia 550 got fully detailed, thanks to leaked slides from an private presentation by Microsoft.

The Lumia 950 and Lumia 950 XL are flagship offering from Microsoft. Nothing new is revealed in the presentation, as Specification and designs of both the flagship devices have been known. The leaked slides just confirm these information.

Microsoft Lumia 950

• Display: 5.2 inch WQHD (1440x2560) OLED display
• Processor: Snapdragon 808, 64-bit Hexa-core processor
• RAM and Storage: 32GB internal storage + 3GB of RAM  + Micro-SD card slot
• OS: Windows 10 Mobile
• Camera: 20-megapixel Purview rear camera with double LED flash; 5-megapixel wide-angle front facing camera
• Battery: 3000mAh battery with Qi Wireless charging
• Connectivity: 4G LTE/3G HSPA+, WiFi 802.11 b/g/n, Bluetooth 4.0, GPS
• Other: USB Type-C, Iris scanner for Windows Hello, Matte White or Black polycarbonate body

Microsoft Lumia 950 XL

• Display: 5.7 inch WQHD (1440x2560) OLED display
• Processor: Snapdragon 810, 64-bit Octa core processor
• RAM and Storage: 32GB internal storage + 3GB of RAM  + Micro-SD card slot
• OS: Windows 10 Mobile
• Camera: 20-megapixel Purview rear camera with triple LED flash; 5-megapixel wide-angle front facing camera
• Battery: 3300mAh battery with Qi Wireless charging
• Connectivity: 4G LTE/3G HSPA+, WiFi 802.11 b/g/n, Bluetooth 4.0, GPS
• Other: USB Type-C, Iris scanner for Windows Hello, Matte White or Black polycarbonate body

Some of the other features confirmed include- (both Lumia 950, 950 XL) [via]

• Lumia 950 will have Qi wireless charging without a flip cover
• Screens will be protected by Coring Gorilla Glass 3
• Both phones will have Qualcomm fast charging with included rapid chargers
• Some countries will have a limited promotion with a free Continuum dock with a purchase
• Iris scanners are making progress and may be available without the need for an update to enable them
• Both phones will have Glance

Also seen in the presentation slides is the Continuum dock codenamed 'Muchkin'. For those who don't know, With Continuum, users can use their Windows 10 Phone like a computer. Users can do so by connecting their phone to an external monitor via HDMI, along with a Bluetooth Keyboard and mouse.The user interface will adapt to fit the monitor.

 
Microsoft Lumia 550
Earlier this week we got a peek at the Lumia 550 via leaked press renders.  Microsoft Lumia 550 is a mid-range offering from the company and will be carry an affordable price tag. It will have on-screen keys and offered in White or Black colors (plus Red and Blue) with polycarbonate body. It is expected to be priced around $120. 

• Display: HD 5-inch screen with Corning Gorilla Glass 3
•  Processor: Qualcomm 1Ghz Snapdragon Quad-Core (Snapdragon 210)
• RAM and Storage: 8GB internal storage + 1 GB of RAM 128Gb + Micro-SD slot
• OS: Windows 10 Mobile
• Camera: Rear 5 megapixel camera with autofocus and LED Flash Geotagging +;  Front 2 megapixel camera
• Battery: 1905 mAh battery with rapid charger. 
• Connectivity: 4G LTE/3G HSPA+, WiFi 802.11 b/g/n, Bluetooth 4.0, GPS

Microsoft Lumia 950, Lumia 950 XL and Lumia 550 will be officially unveiled alongside Microsoft Band 2 and Microsoft Surface Pro 4 at an event in New York City on October 6. 

The event starts at 10:00 am EDT (7:30pm IST) on Tuesday, October 6. Microsoft will also live stream the whole event at  microsoft.com/october2015event/