| Hardware and OS | Microsoft Lumia 850 | |
| Operating system | Microsoft Windows 10 | |
| Processor | Quad-core 1.2 GHz Cortex-A53 | |
| Chipset | Qualcomm MSM8916 Snapdragon 410 (28 nm) | |
| Internal memory | 16GB 1GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Adreno 306 | |
| Display | Microsoft Lumia 850 | other phones |
| Size | 5.0 inches, 68.9 cm2 | |
| Resolution | 720 x 1280 pixels, 16:9 ratio | |
| Type | IPS LCD capacitive touchscreen, 16M colors | |
| Main Camera | Microsoft Lumia 850 | other phones |
| Camera | 10 MP, 1/3.4", AF, OIS | |
| Features | Carl Zeiss optics, LED flash, panorama | |
| Video | 1080p@30fps, stereo sound rec. | |
| Selfie camera | Microsoft Lumia 850 | other phones |
| Camera | 2 MP | |
| Features | LED flash | |
| Connectivity | Microsoft Lumia 850 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE (unspecified) | |
| Bluetooth | 4.1, A2DP, EDR, LE, aptX | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| NFC | Yes | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Technology | GSM / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, hotspot | |
| Multimedia | Microsoft Lumia 850 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | Microsoft Lumia 850 | other phones |
| Capacity | Removable Li-Ion battery | |
| Design | Microsoft Lumia 850 | other phones |
| Colors | Black | |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Microsoft Lumia 850 | other phones |
| Sensors | Accelerometer, gyro, proximity, compass | |