The Apple Watch is finally here and has sold enough units to where users will be waiting at least a few weeks to receive their order.

For those lucky ones who already have their Apple Watch, however, it's now time to load it up with some useful, fun and entertaining apps. Here are some of the best of those.

1. Best App For Your Car - BMW i Remote

OK, this one really depends on what kind of car you have, but BMW's Apple Watch app seems to be one of the best-made apps out there to date. The BMW i remote was made specifically for the BMW i3 plug-in runabouts and the i8 hybrid with the Assist option, but it is largely expected that the app will support more BMW models as time goes on.

The app allows users to monitor their plug-in's battery, navigate them to where they are parked, and even operate door locks and climate control, meaning that you can heat up your car before you even step outside the house on a winter morning. The app will also allow users to monitor their driving efficiency and offers users the best departure times for best battery efficiency.

2. Best Travel App - Uber

It is almost impossible to talk about traveling to a new place without mentioning Uber these days. The Uber app allows users to hail a ride from anywhere that Uber service is offered. In fact, the Apple Watch app looks pretty similar to the iPhone app, just a little smaller. The app will display how long it will be before a driver arrives at the user's destination and will also offer a map view.

3. Best Fitness App - RunKeeper

RunKeeper has long been a favorite fitness hub on iOS, and the latest update to the app has given it Apple Watch support. Through RunKeeper, users are able to start a workout and view their stats straight from their device. The app will also track the user's heart rate. Another potentially important option for some users is the ability to shut off any other notifications, enabling the user to concentrate on their workout.

4. Best Productivity App - Evernote

Evernote is another app that has been wildly popular since long before the Apple Watch, and for good reason. Using the Apple Watch version of the app, users are able to dictate, view, and update their notes through dictation on the watch. All notes will be synced through the user's account, making sure that wherever a user accesses the app they will always have the most recent versions of their notes.

5. Best App To Keep Track Of Your Finances - Mint

For those who find it important to keep a close eye on their finances, Mint is also offering an Apple Watch version of its app. The app allows users to set and keep track of their spending limits, and will show them how much money they have spent in specific categories over the month. It will also send users notifications, ensuring that they never lose track of their money.

6. Best Game - Watch Tag

Watch Tag is a truly social Apple Watch game, and must be played with other Apple Watch users. Users essentially have a target on their wrist and a certain number of points. Users must then tap the targets on their friends' wrists, with each time deducting one point. The person at the end with points remaining is the winner.

7. Best Smart Home App - SmartThings

SmartThings has also released an app for the Apple Watch enabling users to control all of their SmartThings sensors straight from their wrist. This is somewhat a surprising move considering the fact that SmartThings is owned by Samsung, but will certainly be a welcome one for users of the service. Through the app users are able to receive notifications on their home from the connected iOS app. More functionality should be added to the app as time goes on.