Garmin 610 for me. No phone unless I need a pic or going deep into a trail run w/ very few people around.
Not a treadmill guy, but have one and use it more than I'd like. Too much snow, lack of shoulder and plowed road, darkness, and the main road is a highway that is 55 mph adds up me on treadmill Mon-Thurs. I get out early enough on Fri - Sun to hit a trail or another section of road. The incline trainer, 10 inch tablet, I-fit courses, and varying things help keep it interesting. I am waiting for daylight savings to end and get back to spring.