Heat pump thermostat recommendation

[Hgye]

We are installing a heat pump, split system, with an electric furnace.  Can someone recommend the proper thermostat?  It won't be wifi.  I want the heat pump to run until about -15C, then have the electric furnace take over.  We don't ever install these, so I am unsure which thermostat I should use.

[Sergroum]

Ecobee or nest would work.  Most wifi tstats that can read outside temp would probably work.

[Hgye]

There will be no wifi.  Does theeco bee have an outside air temperature sensor?

[samihabib]

He meant it reads the outside temp through internet, like the weather app