Screen size
Lumia 950 XL Dual SIM5.7"
Surface DuoWinner: 8.1"+30%
Quick verdict
Surface Duo leads the measured specs 8-7.
Measured wins
Lumia 950 XL Dual SIM
7
spec wins
Ties
3
equal specs
Surface Duo
8
spec wins
Overall winner
Screen size
Technology
Lumia 950 XL Dual SIM
GSM / HSPA / LTE
Surface Duo
GSM / HSPA / LTE
2G bands
Lumia 950 XL Dual SIM
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Surface Duo
GSM 850 / 900 / 1800 / 1900
3G bands
Lumia 950 XL Dual SIM
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
Surface Duo
HSDPA 850 / 900 / 1900 / 2100
4G bands
Lumia 950 XL Dual SIM
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
equal specsWeight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
3.5mm jack
SD card
Stereo speakers
Surface Duo
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66
Speed
Lumia 950 XL Dual SIM
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Surface Duo
HSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps
Announced
Lumia 950 XL Dual SIM
2015, October. Released 2015, December
Surface Duo
2020, August 12. Released 2020, September 10
Status
Lumia 950 XL Dual SIM
Discontinued
Surface Duo
Discontinued
Dimensions
Lumia 950 XL Dual SIM
151.9 x 78.4 x 8.1 mm (5.98 x 3.09 x 0.32 in)
Surface Duo
Unfolded: 186.9 x 145.2 x 4.8 mm Folded: 145.2 x 93.3 x 9.9 mm
Weight
Lumia 950 XL Dual SIM
165 g (5.82 oz)
Surface Duo
250 g (8.82 oz)
SIM
Lumia 950 XL Dual SIM
Nano-SIM + Nano-SIM
Surface Duo
Nano-SIM + eSIM
Build
Lumia 950 XL Dual SIM
-
Surface Duo
Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
Other
Lumia 950 XL Dual SIM
-
Surface Duo
Stylus support
Type
Lumia 950 XL Dual SIM
AMOLED
Surface Duo
AMOLED
Size
Lumia 950 XL Dual SIM
5.7 inches, 89.6 cm2 (~75.2% screen-to-body ratio)
Surface Duo
8.1 inches, 195.4 cm2 (~144.2% screen-to-body ratio)
Resolution
Lumia 950 XL Dual SIM
1440 x 2560 pixels, 16:9 ratio (~515 ppi density)
Surface Duo
1800 x 2700 pixels, 3:2 ratio (~401 ppi density)
Protection
Lumia 950 XL Dual SIM
Corning Gorilla Glass 4
Surface Duo
Corning Gorilla Glass 5
Other
Lumia 950 XL Dual SIM
ClearBlack display
Surface Duo
Folded position display: 5.6 inches, AMOLED, 1350 x 1800 pixels (4:3)
OS
Lumia 950 XL Dual SIM
Microsoft Windows 10
Surface Duo
Android 10, upgradable to Android 12
Chipset
Lumia 950 XL Dual SIM
Qualcomm MSM8994 Snapdragon 810 (20 nm)
Surface Duo
Qualcomm SM8150 Snapdragon 855 (7 nm)
CPU
Lumia 950 XL Dual SIM
Octa-core (4x1.5 GHz Cortex-A53 & 4x2.0 GHz Cortex-A57)
Surface Duo
Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.78 GHz Kryo 485)
GPU
Lumia 950 XL Dual SIM
Adreno 430
Surface Duo
Adreno 640
Card slot
Lumia 950 XL Dual SIM
microSDXC (dedicated slot)
Surface Duo
No
Internal
Lumia 950 XL Dual SIM
32GB 3GB RAM
Surface Duo
128GB 6GB RAM, 256GB 6GB RAM
Other
Lumia 950 XL Dual SIM
eMMC 5.0
Surface Duo
UFS 3.0
Single
Lumia 950 XL Dual SIM
20 MP, f/1.9, 26mm (wide), 1/2.4", 1.12µm, AF, OIS
Surface Duo
11 MP, f/2.0, 23mm (wide), 1.0µm, PDAF
Features
Lumia 950 XL Dual SIM
Zeiss optics, triple-LED RGB flash, panorama, HDR
Surface Duo
HDR, panorama
Video
Lumia 950 XL Dual SIM
4K@30fps, stereo sound rec., 1080p@30/60fps (after SW update)
Surface Duo
4K@30/60fps, 1080p@30/60/120/240fps, gyro-EIS, HDR
Single
Lumia 950 XL Dual SIM
5 MP, f/2.4
Surface Duo
Uses main camera
Video
Lumia 950 XL Dual SIM
1080p@30fps
Surface Duo
4K@30/60fps, 1080p@30/60fps, gyro-EIS, HDR
Features
Lumia 950 XL Dual SIM
-
Surface Duo
HDR, panorama
Loudspeaker
Lumia 950 XL Dual SIM
Yes
Surface Duo
Yes
3.5mm jack
Lumia 950 XL Dual SIM
Yes
Surface Duo
No
WLAN
Lumia 950 XL Dual SIM
Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot
Surface Duo
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
Lumia 950 XL Dual SIM
4.1, A2DP
Surface Duo
5.0, A2DP, LE, aptX Adaptive
Positioning
Lumia 950 XL Dual SIM
GPS, GLONASS, BDS
Surface Duo
GPS
NFC
Lumia 950 XL Dual SIM
Yes
Surface Duo
No
Radio
Lumia 950 XL Dual SIM
FM radio
Surface Duo
No
USB
Lumia 950 XL Dual SIM
USB Type-C 3.1
Surface Duo
USB Type-C 3.1
Sensors
Lumia 950 XL Dual SIM
Iris scanner, accelerometer, gyro, proximity, compass, barometer, sensor core
Surface Duo
Fingerprint (side-mounted), dual accelerometer, dual gyro, proximity, dual compass
Other
Lumia 950 XL Dual SIM
Microsoft Continuum support
Surface Duo
-
Type
Lumia 950 XL Dual SIM
Li-Ion 3340 mAh, removable
Surface Duo
Li-Po 3577 mAh
Charging
Lumia 950 XL Dual SIM
18W wired Wireless (Qi) (market dependent)
Surface Duo
18W wired
Stand-by
Lumia 950 XL Dual SIM
Up to 288 h (2G) / Up to 288 h (3G)
Surface Duo
-
Talk time
Lumia 950 XL Dual SIM
Up to 25 h (2G) / Up to 19 h (3G)
Surface Duo
-
Music play
Lumia 950 XL Dual SIM
Up to 75 h
Surface Duo
-
Colors
Lumia 950 XL Dual SIM
Black, White
Surface Duo
White
Price
Lumia 950 XL Dual SIM
About 350 EUR
Surface Duo
About 650 EUR