Thought it was worth sharing the collection of links I'm accumulating while investigating the various specifications for the Lumia 950 XL (and 950) devices as well as some general info on the potential RF side of the phone, which we probably won't really know until someone does a tear-down.
Microsoft
Lumia 950 XL Dual SIM: Microsoft Lumia 950 XL Dual SIM - Smartphones - Microsoft - Global
Lumia 950 XL: Microsoft Lumia 950 XL - Smartphones - Microsoft - Global
Lumia 950 Dual SIM: Microsoft 950 Dual SIM - Smartphones - Microsoft - Global
Lumia 950: Microsoft Lumia 950 - Smartphones - Microsoft - Global
AnandTech Technical overview of the architecture of the Qualcomm Snapdragon 810 SoC with a focus on investigating its performance:
Understanding Qualcomm's Snapdragon 810: Performance Preview
AnandTech Snapdragon 808/810 Information:
Qualcomm's Snapdragon 808/810: 20nm High-End 64-bit SoCs with LTE Category 6/7 Support in 2015
UberGizmo Snapdragon 810 Fully Revealed, Benchmarks, Architecture:
Snapdragon 810 Fully Revealed: Benchmarks, Architecture | Ubergizmo
Toms Hardware Snapdragon 810 Performance Preview:
Qualcomm Snapdragon 810 Benchmarks
Qualcomm Device Specification Sheet:
Lumia 950 XL: https://www.qualcomm.com/products/snapdragon/smartphones/microsoft-lumia-950-xl
Lumia 950: https://www.qualcomm.com/products/snapdragon/smartphones/microsoft-lumia-950
Snapdragon 810: https://www.qualcomm.com/products/snapdragon/processors/810
Product Brief: https://www.qualcomm.com/documents/snapdragon-810-processor-product-brief
Snapdragon 808: https://www.qualcomm.com/products/snapdragon/processors/808
Product Brief: https://www.qualcomm.com/documents/snapdragon-808-processor-product-brief
SnapDragon LTE Modem overview
https://www.qualcomm.com/news/snapd...ucing-snapdragon-lte-modems-and-modem-classes
Qualcomm RF360 Front End Solution
https://www.qualcomm.com/products/snapdragon/rf360-front-end-solution
QFE33xx+QFE10xx/QFE25xx/QFE1100
Product Brief: https://www.qualcomm.com/documents/rf360-next-gen-product-brief
Infographic: https://www.qualcomm.com/documents/rf360-next-gen-infographic
QFE23xx+QFE27xx/QFE15xx/QFE11xx
Product Brief: https://www.qualcomm.com/documents/qualcomm-rf360-front-end-solution-product-brief
Infographic: https://www.qualcomm.com/documents/qualcomm-rf360-front-end-solution-infographic
QFE1100
https://www.qualcomm.com/documents/...envelope-tracking-technology-3g4g-lte-devices
Microsoft
Lumia 950 XL Dual SIM: Microsoft Lumia 950 XL Dual SIM - Smartphones - Microsoft - Global
Lumia 950 XL: Microsoft Lumia 950 XL - Smartphones - Microsoft - Global
Lumia 950 Dual SIM: Microsoft 950 Dual SIM - Smartphones - Microsoft - Global
Lumia 950: Microsoft Lumia 950 - Smartphones - Microsoft - Global
AnandTech Technical overview of the architecture of the Qualcomm Snapdragon 810 SoC with a focus on investigating its performance:
Understanding Qualcomm's Snapdragon 810: Performance Preview
AnandTech Snapdragon 808/810 Information:
Qualcomm's Snapdragon 808/810: 20nm High-End 64-bit SoCs with LTE Category 6/7 Support in 2015
UberGizmo Snapdragon 810 Fully Revealed, Benchmarks, Architecture:
Snapdragon 810 Fully Revealed: Benchmarks, Architecture | Ubergizmo
Toms Hardware Snapdragon 810 Performance Preview:
Qualcomm Snapdragon 810 Benchmarks
Qualcomm Device Specification Sheet:
Lumia 950 XL: https://www.qualcomm.com/products/snapdragon/smartphones/microsoft-lumia-950-xl
Lumia 950: https://www.qualcomm.com/products/snapdragon/smartphones/microsoft-lumia-950
Snapdragon 810: https://www.qualcomm.com/products/snapdragon/processors/810
Product Brief: https://www.qualcomm.com/documents/snapdragon-810-processor-product-brief
Snapdragon 808: https://www.qualcomm.com/products/snapdragon/processors/808
Product Brief: https://www.qualcomm.com/documents/snapdragon-808-processor-product-brief
SnapDragon LTE Modem overview
https://www.qualcomm.com/news/snapd...ucing-snapdragon-lte-modems-and-modem-classes
Qualcomm RF360 Front End Solution
https://www.qualcomm.com/products/snapdragon/rf360-front-end-solution
QFE33xx+QFE10xx/QFE25xx/QFE1100
Product Brief: https://www.qualcomm.com/documents/rf360-next-gen-product-brief
Infographic: https://www.qualcomm.com/documents/rf360-next-gen-infographic
QFE23xx+QFE27xx/QFE15xx/QFE11xx
Product Brief: https://www.qualcomm.com/documents/qualcomm-rf360-front-end-solution-product-brief
Infographic: https://www.qualcomm.com/documents/qualcomm-rf360-front-end-solution-infographic
QFE1100
https://www.qualcomm.com/documents/...envelope-tracking-technology-3g4g-lte-devices