Looks like my store in west end of Mississauga is getting 43 units. UPS tracking says "Multiple Packages: 43"
Neat, UPS shows details of all packages in the bundle. My S4 package is marked 1.10 lb, there are 41 - 1.10 lb packages and 2 - 1.20 lb packages.
Unless another device is exactly 1.10 looks like my store is getting 41 S4's