Microsoft Lumia 950 (codenamed Talkman, a reference to the old Nokia Talkman) is a smartphone developed by Microsoft Mobile, officially revealed on 6 October 2015 alongside the larger Lumia 950 XL. The phone was first released on AT&T in the United States on 17 November 2015, and subsequently made available on the Microsoft Store as well as in other countries. The Lumia 950 was the successor to the 2014 Nokia Lumia 930 and is among the first phones to natively run Windows 10 Mobile. The phone is primarily aimed at users desiring a flagship device, in contrast to Microsoft's previous strategy of targeting developing markets with low-end hardware. Microsoft's numbering convention designated the Lumia 950 as a 5th-generation device in the high-end 900 series. The Lumia 950 was Microsoft Mobile's last Lumia flagship device, and its last flagship Windows Phone device. A supposed successor called Microsoft Lumia 960 (codenamed Northstar) was reportedly canceled while being in its prototype tests level, along with Lumia 850 and 750. The next Microsoft phone release was the Microsoft Surface Duo, while a Windows Phone-powered Surface Neo foldable tablet was cancelled too a few years later, after its introduction.
Hardware The Lumia 950 has a polycarbonate frame with a removable back shell, allowing access to the battery as well as SIM and microSD card slots. The phone is available in two colours, black and white, although third-party replacement shells were available in different colours and materials.
Internals The Lumia 950 uses a Qualcomm Snapdragon 808 MSM8992 SoC which combines two 1.82 GHz Cortex-A57 and four 1.44 GHz Cortex-A53 cores in a big.LITTLE architecture, allowing more computationally intensive workloads to run on the faster "big" cores while threads with less priority run on the slower "LITTLE" cores. The SoC also includes an Adreno 418 GPU and is paired with 3 GB of LPDDR3 RAM. The phone has 32 GB of internal storage which can be expanded with microSD cards up to 200 GB in size.
Display The Lumia 950 has a 5.2 in (130 mm) AMOLED display with a resolution of 2560x1440 (WQHD) and a 16:9 aspect ratio. Pixel density is 564 ppi. The display is protected by Gorilla Glass 3 and features ClearBlack technology for improved sunlight visibility, as well as double tap to wake, but unlike earlier Lumia flagships it does not support some features like Super Sensitive touch.
Camera The Lumia 950 has a 20 MP PureView-branded rear-facing camera, containing a 1/2.4 in BSI sensor with 1.12 μm pixels and phase-detection autofocus, a 6-element Carl Zeiss lens with a f/1.9 aperture and 5th-gen optical image stabilization, and a triple-LED RGB flash that can adjust to match the color of ambient light. Maximum image resolution is 4992x3744 pixels (18.7 MP) in 4:3 aspect ratio and 5344x3008 pixels (16.1 MP) in 16:9 aspect ratio. The camera can also capture oversampled 8 MP images, optionally with a full-resolution DNG file that enables more post-processing possibilities. The camera supports video capture at up to 4K (3840x2160) resolution, as well as slow-motion video at 120 fps, albeit at a reduced resolution of 720p. The front-facing camera has a 5 MP sensor and a wide-angle f/2.4 lens, supporting video capture at up to 1080p resolution. The camera also supports Windows Hello through iris recognition with the help of an infrared LED.
Connectivity The Lumia 950 supports 4G LTE technology with maximum transfer speeds of 300 Mbit/s (150 Mbit/s for the dual-SIM version). Other wireless connectivity options include dual-band Wi-Fi 802.11a/b/g/n/ac, Wi-Fi hotspot, NFC, Bluetooth 4.1, and wireless screen projection via Miracast. Physical connectors include a 3.5 mm audio jack, as well as a USB-C connector for charging and data transfer. The latter supports USB OTG, enabling the use of peripherals like mice, flash drives or external microphones, and USB-C fast charging.
Other The Lumia 950 supports wireless inductive charging using the Qi standard. The AT&T version also supports the PMA standard. With either the addition of a Microsoft Display Dock or by connecting to a Miracast receiver, the Lumia 950 is compatible with Windows Continuum, a technology that allows users to connect their devices to an external monitor for a desktop-like experience.
Software The Lumia 950 originally launched with Windows 10 Mobile Version 1511. Microsoft released Windows 10 Mobile Version 1607 (Anniversary Update) in August 2016, Version 1703 (Creators Update) in April 2017 and Version 1709 (Fall Creators Update) in October 2017. The phone received its last update in January 2020. Third-party developers have managed to port Windows 10 ARM and Windows 11 ARM to the Lumia 950 and 950 XL, enabling the phone to run a full desktop version of Windows. Linux and Android have also been ported, but not all hardware features are working in these alternate operating systems.
Known issues The phone has issues with AT&T's LTE network when users do not first insert a SIM card before going through the phone's setup procedure, Cortana can cause echoes during voice calls, and the phone has been reported to have Wi-Fi issues. Australian carrier Telstra has claimed the Lumia 950 has connectivity issues on their network. Both the Lumia 950 and 950 XL were reported to experience reboots and crashes after their release. Most issues were subsequently fixed with Anniversary update in 2016.
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