* Microsoft Office, Surface Pen, and some software and accessories sold separately. 

[1] Surface Book 2 battery life: 
Surface Book 2 13.5”: Up to 17 hours of video playback. Testing conducted by Microsoft in October 2017 using preproduction Intel® Core™ i5, 256GB, 8 GB RAM device. Testing consisted of full battery discharge during video playback. All settings were default except: Wi-Fi was associated with a network and Auto-Brightness disabled. Battery life varies significantly with settings, usage and other factors. 
Surface Book 2 15”: Up to 17 hours of video playback. Testing conducted by Microsoft in October 2017 using preproduction Intel® Core™ i7, 512GB, 16 GB RAM dGPU device. Testing consisted of full battery discharge during video playback. All settings were default except: Wi-Fi was associated with a network and Auto-Brightness disabled. Battery life varies significantly with settings, usage and other factors.    

[2] System software uses significant storage space. Available storage is subject to change based on system software updates and apps usage. 1 GB= 1 billion bytes. See Surface.com/Storage for more details. 

"Most powerful Surface laptop" claim refers to processing power. 

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Offer valid from May 5, 2019 to June 30, 2019, while supplies last. Available only at retail stores and Microsoft online stores in the United States (including Puerto Rico). The offer is not valid for purchases or orders made previously. It can not be transferred or redeemed for cash or promotional codes. It may not be possible to combine with other offers. In the reimbursements, the discount will be taken into account. The discount in the price does not include taxes, shipping costs or other charges. Offer not valid where prohibited or restricted by law. Microsoft reserves the right to modify or discontinue offers at any time. Limit of 3 offers per customer. Other exclusions and limitations may apply.

Offer valid from 9PM PT May 5, 2019 to June 30, 2019, while supplies last. Available only at retail stores and Microsoft online stores in the United States (including Puerto Rico). The offer is not valid for purchases or orders made previously. It can not be transferred or redeemed for cash or promotional codes. It may not be possible to combine with other offers. In the reimbursements, the discount will be taken into account. The discount in the price does not include taxes, shipping costs or other charges. Offer not valid where prohibited or restricted by law. Microsoft reserves the right to modify or discontinue offers at any time. Other exclusions and limitations may apply.

Offer valid from 9PM PT May 23, 2019 to June 8, 2019, while supplies last. Available only at retail stores and Microsoft online stores in the United States (including Puerto Rico). The offer is not valid for purchases or orders made previously. It can not be transferred or redeemed for cash or promotional codes. It may not be possible to combine with other offers. In the reimbursements, the discount will be taken into account. The discount in the price does not include taxes, shipping costs or other charges. Offer not valid where prohibited or restricted by law. Microsoft reserves the right to modify or discontinue offers at any time. Limit of 3 offers per customer. Other exclusions and limitations may apply.