All settings were default except Adaptive Brightness was disabled, and screen was set to 150 nits. The active use scenarios excluded cell calls and included both single screen and dual screen scenarios, consisting of (1) a web browsing test accessing 8 popular websites over multiple open tabs, (2) productivity tests utilizing Microsoft Teams audio and video calls and Microsoft Word, PowerPoint, Excel and Outlook, (3) sending and receiving SMS text messages, and (4) streaming a video through the YouTube app. Testing consisted of full battery discharge during active use scenarios and a power drain measurement in Suspend.

Testing conducted by Microsoft in August 2020 using preproduction Surface Duo units and software over Wi-Fi with LTE associated to a network.

Some apps and features may require a wireless plan, additional subscriptions, or fees.

** Some devices, accessories, and software sold separately.

Calling requires data plan see carrier for pricing and coverage details. Available apps may vary by carrier and over time. Additional fees and/or subscriptions required for some apps and features.

* Some devices, accessories, and software sold separately.

Please review for important safety information about your device. Please keep a safe distance between your device and objects that are affected by magnets.

Your device contains magnets, which may damage objects such as credit cards, passbooks, access cards, boarding passes, or parking passes.

Features and app availability may vary by region.

Verizon voice recorder app