Fitness watch - Which one to choose

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Hi everybpdy, I've been on myfitnesspal for over 3 weeks now and things are going great. I eat more healthy, my cardio improved and lost 6 pounds. Now that I'm into running and all I am looking for a fitness watch to track my runs and progress (both outside and treadmill, especially for treadmill) I'm looking for something that will sync directly to the app. I looked at the new balance watch or the nike sportwatch but they are not compatible with the app. If I can collect the information through another app and then transfer it to myfitnesspal I'll be ok with that.

What do you guys suggest ? I want a watch, heart rate monitor and step/calorie counter, good for the treadmill..

Thanks all of you for the feedback