https://arstechnica.com/gadgets/2018/11/surface-go-with-integrated-lte-available-for-preorder-now-from-679/

Last week Microsoft added an extra configuration to the Surface Go lineup. Today it's rounding out the range and filling the final gaps, adding systems with integrated LTE to the product mix.

LTE adds $130 to the system price. At $679 is the consumer SKU: 8GB RAM, 128GB SSD storage, Windows 10 Home, and integrated LTE. Business users have two configurations: 8GB RAM, 128GB SSD storage, Windows 10 Pro, for $729, or the same spec with 256GB SSD storage, for $829. The LTE option adds a fraction to the weight (0.02lb/10 grams) and equips the machine with a nano-SIM tray, GPS, and GLONASS positioning.