Just don't get the ?40 series, it's the series without physical trackpad buttons. You can put the ?50 trackpad in it, but that's more hassle and doesn't work in

Just don't get the ?40 series, it's the series without physical trackpad buttons. You can put the ?50 trackpad in it, but that's more hassle and doesn't work in Windows well without extra reflashing. Thankfully, they reverted to physical buttons in ?50 series and later.