Use Your Old Apple Watch as a Remote

Even though the smaller screen might make it a bit uncomfortable to use, you can still turn your old Apple Watch into a dedicated remote for many things around the house.
For starters, if you have an Apple TV, you can use your old Apple Watch to control it without fetching the remote.
Or, if you have a smart home, you can use your Apple Watch to control different things without using your iPhone or your main Apple Watch. For instance, you can turn on the lights or change the thermostat without looking for your iPhone; instead, you can leave your old Apple Watch in a dedicated place to control your smart home.