The Edge 200 is a great bit of kit, there is only one model/version. I love mine and will replace it with another one soon. It has all I need, speed, distance, time moving, height gain, calories used (though thats a bit random), the only thing it doesnt do is cadence and power but then I know that I dont do enough of the former to generate much of the latter so ho hum. You can set an auto pause too which is quite handy if there are lots of traffic lights on the route!
You can follow GPX routes with it and it gives good, reasonably early directions but obviously thats dependent on the route. Its the old style “breadcrumb” method but it works and has yet to get me lost on numerous self made and downloaded routes. The rubber seal on the back isnt great and mine broke off so I just use some electrical tape to protect the cable port. It does strava etc and the garmin software isnt bad but looks clunky these days.
Shop around though, Rose had them for £72 recently, Bike Discount.de were a little more and they are only £80 from wiggle