Apple

The Apple Watch is not a fitness-first device, so it mau not be the best choice if you only want to use it for workouts. The GPS isn’t always the most accurate (it consistently measures about 10m per lap of 250m too little on my local track and I’ve had some races where it was off a bit more), and battery life is significantly worse than eg most Garmin watches.

However, the Apple Watch is a great smartwatch if you also want to use it during the rest of the day, where it’s the perfect addition to your phone. I personally really love mine, the fitness features are for the most part very good. I couldn’t run without my Apple Watch as it’s the only device that allows me to run with music without my phone. Also the swim tracking is really accurate. Overall I would definitely recommend it, but if you’re only looking for a device to track your activities, there may be better options for you.