Touch Bar MacBook Pro models have non-upgradeable SSDs, seemingly under-sized batteries - 9to5Mac
MacBook Pro A1707 Late 2016 Disassembly *Nothing Upgradeable* - YouTube
Amazon.com: Apple 15in Macbook Pro with Touch Bar Retina Display, Intel Core i7-6700HQ 2.6GHz, 16GB DDR3-2133, 512GB PCIe SSD, Radeon Pro 450 2GB Mac OS 10.12 Sierra - Silver (Renewed) : Electronics
Amazon.com: OWC 1.0TB Aura Pro NT High-Performance NVMe SSD Upgrade Kit with Tools, Compatible with 2016-2017 13-inch MacBook Pro Non-Touch Bar : Electronics